Knowledge

Computer memory

Source đź“ť

1709: 1698: 2441:. This offers several advantages. Computer programmers no longer need to worry about where their data is physically stored or whether the user's computer will have enough memory. The operating system will place actively used data in RAM, which is much faster than hard disks. When the amount of RAM is not sufficient to run all the current programs, it can result in a situation where the computer spends more time moving data from RAM to disk and back than it does accomplishing tasks; this is known as 33: 1736: 1756: 2172: 1721: 2060:, and that storing a charge or no charge on the MOS capacitor could represent the 1 and 0 of a bit, while the MOS transistor could control writing the charge to the capacitor. This led to his development of a single-transistor DRAM memory cell. In 1967, Dennard filed a patent for a single-transistor DRAM memory cell based on MOS technology. This led to the first commercial DRAM IC chip, the 2313:. The term is used to describe a memory that has some limited non-volatile duration after power is removed, but then data is ultimately lost. A typical goal when using a semi-volatile memory is to provide the high performance and durability associated with volatile memories while providing some benefits of non-volatile memory. 2320:
cell has increased volatility but otherwise continues to work. Data locations which are written frequently can thus be directed to use worn circuits. As long as the location is updated within some known retention time, the data stays valid. After a period of time without update, the value is copied
2463:
Without protected memory, it is possible that a bug in one program will alter the memory used by another program. This will cause that other program to run off of corrupted memory with unpredictable results. If the operating system's memory is corrupted, the entire computer system may crash and need
2328:
can be made non-volatile by building large cells, but doing so raises the cost per bit and power requirements and reduces the write speed. Using small cells improves cost, power, and speed, but leads to semi-volatile behavior. In some applications, the increased volatility can be managed to provide
2459:
Protected memory is a system where each program is given an area of memory to use and is prevented from going outside that range. If the operating system detects that a program has tried to alter memory that does not belong to it, the program is terminated (or otherwise restricted or redirected).
2401:
occurs when a program writes data to the end of its allocated space and then continues to write data beyond this to memory that has been allocated for other purposes. This may result in erratic program behavior, including memory access errors, incorrect results, a crash, or a breach of system
1849:. The Williams tube was able to store more information than the Selectron tube (the Selectron was limited to 256 bits, while the Williams tube could store thousands) and was less expensive. The Williams tube was nevertheless frustratingly sensitive to environmental disturbances. 2212:. Dynamic RAM is more complicated for interfacing and control, needing regular refresh cycles to prevent losing its contents, but uses only one transistor and one capacitor per bit, allowing it to reach much higher densities and much cheaper per-bit costs. 2026:(DRAM). Bipolar SRAM was invented by Robert Norman at Fairchild Semiconductor in 1963, followed by the development of MOS SRAM by John Schmidt at Fairchild in 1964. SRAM became an alternative to magnetic-core memory, but requires six transistors for each 2386:
occurs when a program requests memory from the operating system and never returns the memory when it is done with it. A program with this bug will gradually require more and more memory until the program fails as the operating system runs
2460:
This way, only the offending program crashes, and other programs are not affected by the misbehavior (whether accidental or intentional). Use of protected memory greatly enhances both the reliability and security of a computer system.
2468:. At times programs intentionally alter the memory used by other programs. This is done by viruses and malware to take over computers. It may also be used benignly by desirable programs which are intended to modify other programs, 2329:
many benefits of a non-volatile memory, for example by removing power but forcing a wake-up before data is lost; or by caching read-only data and discarding the cached data if the power-off time exceeds the non-volatile threshold.
1588:
capacity for caching so long as it is not needed by running software. If needed, contents of the computer memory can be transferred to storage; a common way of doing this is through a memory management technique called
3188:
The i1103 was manufactured on a 6-mask silicon-gate P-MOS process with 8 μm minimum features. The resulting product had a 2,400 µm, 2 memory cell size, a die size just under 10 mm², and sold for around $
2048:
in 1965. While it offered improved performance, bipolar DRAM could not compete with the lower price of the then dominant magnetic-core memory. MOS technology is the basis for modern DRAM. In 1966,
1930:
in 1965. While semiconductor memory offered improved performance over magnetic-core memory, it remained larger and more expensive and did not displace magnetic-core memory until the late 1960s.
3242:
The first commercial synchronous DRAM, the Samsung 16-Mbit KM48SL2000, employs a single-bank architecture that lets system designers easily transition from asynchronous to synchronous systems.
3587:
Windows Server Enterprise supports clustering with up to eight-node clusters and very large memory (VLM) configurations of up to 32 GB on 32-bit systems and 2 TB on 64-bit systems.
2344:, where an external signal copies data from the volatile memory to the non-volatile memory, but if power is removed before the copy occurs, the data is lost. Another example is 2552: 4547: 628: 2394:
results when a program tries to access memory that it does not have permission to access. Generally, a program doing so will be terminated by the operating system.
1576:
which is slower but less expensive per bit and higher in capacity. Besides storing opened programs and data being actively processed, computer memory serves as a
2352:
to power the memory device in case of external power loss. If power is off for an extended period of time, the battery may run out, resulting in data loss.
3717: 4243: 3421: 2321:
to a less-worn circuit with longer retention. Writing first to the worn area allows a high write rate while avoiding wear on the not-worn circuits.
3661: 3621: 2613: 1708: 2887: 4362: 3302: 3271: 4368: 2724: 2699: 2659: 3072: 2784: 2065: 623: 3032: 643: 3710: 3117: 3054: 2499:
store data but normally are not considered as memory, since they only store one word and do not include an addressing mechanism.
3468: 1517: 4727: 4320: 3569: 3395: 3296: 3265: 2850: 2429:. It allows multiple types of memory to be used. For example, some data can be stored in RAM while other data is stored on a 1058: 4248: 3575: 3173: 2937: 2053: 4281: 3288:
Business Intelligence: Second European Summer School, eBISS 2012, Brussels, Belgium, July 15-21, 2012, Tutorial Lectures
2175:
Various memory modules containing different types of DRAM (from top to bottom): DDR SDRAM, SDRAM, EDO DRAM, and FPM DRAM
3703: 3522: 3316: 2918:. 1965 IEEE International Solid-State Circuits Conference. Digest of Technical Papers. Vol. VIII. pp. 82–83. 2746: 1267: 219: 264: 3181: 2914:
Wood, J.; Ball, R. (February 1965). "The use of insulated-gate field-effect transistors in digital storage systems".
2553:"DDR5 Era To Officially Begin In 2021, With DRAM Market Currently Transitioning Between Generations, Says TrendForce" 2378:
Improper management of memory is a common cause of bugs and security vulnerabilities, including the following types:
2274: 2226:
Non-volatile memory can retain the stored information even when not powered. Examples of non-volatile memory include
1949: 1006: 949: 269: 2332:
The term semi-volatile is also used to describe semi-volatile behavior constructed from other memory types, such as
2056:
was working on MOS memory. While examining the characteristics of MOS technology, he found it was possible to build
2011:
in the early 1970s. MOS memory overtook magnetic core memory as the dominant memory technology in the early 1970s.
1795:
In the early 1940s, memory technology often permitted a capacity of a few bytes. The first electronic programmable
117: 4894: 2270: 1332: 992: 936: 2811: 2209: 4852: 2282: 1018: 687: 499: 95: 2099:
in 1956, while working for the Arma Division of the American Bosch Arma Corporation. In 1967, Dawon Kahng and
4742: 4238: 2092: 1635: 1367: 17: 5100: 4106: 4077: 2442: 2023: 1807:, could perform simple calculations involving 20 numbers of ten decimal digits stored in the vacuum tubes. 1651: 718: 613: 514: 3343:
Tarui, Y.; Hayashi, Y.; Nagai, K. (1972). "Electrically reprogrammable nonvolatile semiconductor memory".
3903: 3845: 3463:
Masuoka, F.; Momodomi, M.; Iwata, Y.; Shirota, R. (1987). "1987 International Electron Devices Meeting".
2337: 2128: 2019: 1655: 675: 4082: 2370:
have complex systems to properly manage memory. Failure to do so can lead to bugs or slow performance.
2185:
Volatile memory is computer memory that requires power to maintain the stored information. Most modern
1510: 1307: 1206: 1078: 708: 697: 3417: 2608: 806: 4986: 3896: 1965: 569: 504: 399: 2866: 2630: 2402:
security. They are thus the basis of many software vulnerabilities and can be maliciously exploited.
1685:, for example, 1, 2, 4, 8, 16, 32, 64 or 128 bits. Each word can be accessed by a binary address of 5090: 4736: 4684: 4500: 4483: 4213: 4126: 4099: 4070: 3833: 2522:
Other volatile memory technologies that have attempted to compete or replace SRAM and DRAM include
1964:
was cheaper and consumed less power than magnetic core memory. In 1965, J. Wood and R. Ball of the
1379: 1362: 851: 137: 1830:
to read and write bits. Delay-line memory was limited to a capacity of up to a few thousand bits.
5000: 4915: 4811: 4637: 4542: 4537: 4325: 4274: 4156: 4151: 4039: 4012: 3527: 3494: 3321: 3095: 2942: 2892: 2789: 2751: 2732: 2695: 2655: 2583: 2208:
SRAM retains its contents as long as the power is connected and may use a simpler interface, but
2127:(electrically erasable PROM) was developed by Yasuo Tarui, Yutaka Hayashi and Kiyoko Naga at the 2041: 1957: 1953: 1923: 1911: 1907: 1891: 1697: 1666: 1603: 1374: 1191: 914: 319: 154: 132: 112: 65: 2030:
of data. Commercial use of SRAM began in 1965, when IBM introduced their SP95 SRAM chip for the
1876:
computer in 1953. Magnetic-core memory was the dominant form of memory until the development of
39:
module. As of 2021, over 90 percent of computer memory used in PCs and servers was of this type.
4663: 4434: 3201: 2422: 1992: 1919: 1826:
in the form of sound waves propagating through the mercury, with the quartz crystals acting as
1247: 464: 334: 274: 3286: 3167: 2836: 596: 4527: 4449: 4429: 4331: 4291: 4046: 3255: 3151: 2345: 2045: 1503: 750: 668: 454: 259: 239: 229: 85: 50: 1681:
capable of storing multiple bits per cell. The memory cells are grouped into words of fixed
4881: 4315: 4310: 4034: 3352: 2994: 2684: 2644: 2108: 2015: 1961: 1887: 1880: 1857: 1846: 1777: 1599: 1446: 1314: 1093: 1053: 976: 589: 494: 384: 279: 142: 122: 105: 100: 1841:, originated in 1946, both using electron beams in glass tubes as means of storage. Using 8: 5042: 4386: 3908: 2491: 2221: 2080: 2069: 1895: 1853: 1823: 1623: 1352: 1043: 981: 966: 833: 785: 638: 449: 147: 3356: 2578: 5048: 4769: 4519: 4404: 4267: 3024: 2496: 2465: 2391: 2366:
Proper management of memory is vital for a computer system to operate properly. Modern
1915: 1860:
allowed for memory recall after power loss. It was developed by Frederick W. Viehe and
1611: 1452: 1417: 1063: 489: 474: 419: 414: 404: 379: 304: 3090: 4707: 4056: 3920: 3818: 3730: 3655: 3615: 3565: 3368: 3292: 3261: 3232: 3177: 3124: 3058: 2846: 2812:"1953: Transistors make fast memories | The Storage Engine | Computer History Museum" 2454: 2361: 2266: 2049: 1985: 1903: 1819: 1815: 1811: 1129: 1124: 1048: 1013: 867: 845: 744: 703: 606: 444: 169: 5095: 5020: 4721: 4571: 4347: 3891: 3782: 3476: 3387: 3360: 2973: 2919: 2916:
1965 IEEE International Solid-State Circuits Conference. Digest of Technical Papers
2502: 2486: 2367: 2349: 2298: 2286: 2227: 2084: 1842: 1796: 1702: 1678: 1464: 1458: 1384: 1347: 1337: 1302: 1114: 1068: 1036: 811: 794: 479: 439: 199: 184: 80: 70: 4958: 4821: 4787: 4532: 4051: 3992: 3940: 3760: 3755: 3747: 3636: 3600: 3559: 3227: 2838:
Semiconductors and the Information Revolution: Magic Crystals that made IT Happen
2617: 2481: 2438: 2418: 2398: 2235: 2202: 2180: 1996: 1899: 1869: 1647: 1615: 1556: 1357: 1184: 1171: 862: 857: 713: 580: 559: 534: 394: 314: 244: 214: 189: 75: 4990: 4889: 4871: 4844: 4116: 4017: 3787: 3770: 2977: 2923: 2842: 2412: 2150:
Developments in technology and economies of scale have made possible so-called
2096: 2031: 1838: 1607: 1591: 1476: 1394: 1237: 894: 756: 692: 564: 549: 529: 524: 469: 434: 389: 339: 329: 324: 309: 204: 194: 127: 3364: 5084: 5026: 4923: 4305: 4218: 4208: 4188: 4004: 3930: 3883: 3828: 3823: 3775: 3480: 3372: 2251: 2243: 2186: 2132: 2104: 1973: 1865: 1834: 1739: 1735: 1482: 1109: 1104: 1073: 828: 738: 554: 544: 539: 519: 354: 344: 224: 209: 3695: 2316:
For example, some non-volatile memory types experience wear when written. A
1926:. The first bipolar semiconductor memory IC chip was the SP95 introduced by 5062: 4779: 4647: 4094: 3982: 3965: 3960: 3738: 2259: 2247: 2231: 2088: 1989: 1977: 1743: 1729: 1674: 1627: 1619: 1581: 1573: 1429: 1423: 1389: 1257: 1212: 1196: 1088: 884: 879: 839: 801: 484: 459: 359: 294: 249: 234: 1584:
to improve both reading and writing performance. Operating systems borrow
32: 4928: 4592: 4562: 4463: 4193: 4161: 4064: 4024: 3987: 3955: 3797: 2604: 2383: 2239: 2194: 2112: 2000: 1873: 1818:
in the early 1940s. Through the construction of a glass tube filled with
1804: 1682: 1549: 1488: 1440: 874: 409: 349: 254: 4259: 1944:
The invention of the metal–oxide–semiconductor field-effect transistor (
1533:
stores information, such as data and programs, for immediate use in the
5068: 4760: 4601: 4424: 4357: 3925: 3855: 3850: 3840: 2430: 2255: 2190: 2144: 2061: 2057: 2004: 1939: 1827: 1822:
and plugged at each end with a quartz crystal, delay lines could store
1577: 1083: 909: 663: 429: 424: 299: 164: 90: 36: 2139:
in the early 1980s. Masuoka and colleagues presented the invention of
1755: 5032: 4862: 4797: 4732: 4458: 4203: 4198: 4182: 4111: 3950: 3802: 3765: 2341: 2294: 2198: 2140: 2100: 1766: 1659: 1470: 1435: 1272: 1201: 1099: 970: 961: 658: 601: 369: 289: 2421:
is managed by the operating system typically with assistance from a
5058: 5016: 5006: 4834: 4473: 4419: 4141: 3792: 3727: 2888:"1970: MOS Dynamic RAM Competes with Magnetic Core Memory on Price" 2469: 2434: 2290: 2197:(DRAM). DRAM dominates for desktop system memory. SRAM is used for 1981: 1810:
The next significant advance in computer memory came with acoustic
1763: 1534: 1399: 1342: 1277: 1232: 1217: 987: 956: 929: 904: 762: 648: 374: 284: 179: 174: 5054: 4966: 4938: 4933: 4655: 4616: 4606: 4509: 4468: 4445: 4414: 3975: 3913: 3867: 3637:"Method and apparatus for managing a spin-transfer torque memory" 3441: 3436: 3284: 3205: 2325: 2136: 2111:
could be used for the cell of a reprogrammable ROM, which led to
2037: 1861: 1713: 1297: 1287: 1282: 1242: 1144: 1139: 1119: 924: 899: 889: 680: 2725:"1960 - Metal Oxide Semiconductor (MOS) Transistor Demonstrated" 2610:
Programmer's Handbook for Manchester Electronic Computer Mark II
1845:, Fred Williams invented the Williams tube, which was the first 4996: 4829: 4690: 4611: 4409: 4399: 4089: 3862: 2333: 2171: 2124: 1945: 1877: 1643: 1292: 1252: 1134: 1023: 821: 364: 1956:
storage elements. MOS memory was developed by John Schmidt at
1720: 5036: 5010: 4948: 4943: 4904: 4717: 4390: 4352: 3499: 2527: 2523: 2278: 2120: 2116: 1800: 1773: 1725: 1639: 1227: 1164: 1159: 1154: 816: 773: 767: 653: 633: 618: 4548:
Princeton Application Repository for Shared-Memory Computers
2964:
Critchlow, D. L. (2007). "Recollections on MOSFET Scaling".
27:
Computer component that stores information for immediate use
4900: 4806: 4582: 4166: 4060: 3472: 3462: 2265:
Non-volatile memory technologies under development include
2147:
in 1987. Toshiba commercialized NAND flash memory in 1987.
1969: 1222: 509: 159: 4711: 4146: 3970: 3073:"1966: Semiconductor RAMs Serve High-speed Storage Needs" 3002: 2785:"1966: Semiconductor RAMs Serve High-speed Storage Needs" 2426: 2027: 2008: 1927: 1872:
in the early 1950s, before being commercialized with the
1788: 1689:
bits, making it possible to store 2 words in the memory.
1677:
organization includes both one bit per memory cell and a
1670: 1631: 1585: 1543: 1262: 1149: 919: 2234:, most types of magnetic computer storage devices (e.g. 1972:(complementary MOS) memory cells, in addition to MOSFET 3598: 3285:
Marie-Aude Aufaure; Esteban Zimányi (17 January 2013).
2882: 2880: 2878: 1701:
Historical lowest retail price of computer memory and
3634: 2779: 2777: 2775: 2773: 2771: 2769: 2505:, memory combining both large capacity and high speed 1614:. There are two main kinds of semiconductor memory: 3309: 2875: 1999:at Fairchild in 1968 enabled the production of MOS 3278: 2766: 3342: 3220: 2938:"1968: Silicon Gate Technology Developed for ICs" 1572:Main memory operates at a high speed compared to 5082: 1960:in 1964. In addition to higher performance, MOS 2472:, for example, to insert breakpoints or hooks. 3691:, Alexandria, Virginia.: Time Life Books, 1988 2717: 4275: 4244:History of computing hardware (1960s–present) 3725: 3711: 3523:"1971: Reusable semiconductor ROM introduced" 3317:"1971: Reusable semiconductor ROM introduced" 3253: 3055:"Toshiba "Toscal" BC-1411 Desktop Calculator" 2747:"1953: Whirlwind computer debuts core memory" 2250:, and early computer storage methods such as 1511: 3660:: CS1 maint: multiple names: authors list ( 3620:: CS1 maint: multiple names: authors list ( 3465:Electron Devices Meeting, 1987 International 2966:IEEE Solid-State Circuits Society Newsletter 2576: 1665:Most semiconductor memory is organized into 4363:Standard Performance Evaluation Corporation 3118:"Intel: 35 Years of Innovation (1968–2003)" 4369:Transaction Processing Performance Council 4282: 4268: 3718: 3704: 3240:(15–21). Hayden Publishing Company. 1993. 3159: 2692:Integrated Circuit Engineering Corporation 2652:Integrated Circuit Engineering Corporation 1968:proposed digital storage systems that use 1910:in 1961. In the same year, the concept of 1518: 1504: 4289: 3247: 3110: 3025:"Spec Sheet for Toshiba "TOSCAL" BC-1411" 2989: 2987: 2963: 2577:Hemmendinger, David (February 15, 2016). 1598:Modern computer memory is implemented as 1561:Archaic synonyms for main memory include 2913: 2170: 2161: 2066:Synchronous dynamic random-access memory 1852:Efforts began in the late 1940s to find 1833:Two alternatives to the delay line, the 1754: 1734: 1719: 1707: 1696: 31: 3385: 3017: 2304: 1716:, an early punch multiplying calculator 14: 5083: 3678: 3557: 2984: 2437:), functioning as an extension of the 2340:and a non-volatile memory on the same 2215: 2131:in 1972. Flash memory was invented by 4728:Data center infrastructure efficiency 4321:Data center infrastructure efficiency 4263: 3699: 3564:. O'Reilly Media, Inc. p. 1520. 3553: 3551: 3549: 3547: 3545: 3174:Springer Science & Business Media 3165: 3147: 3145: 2834: 2210:commonly uses six transistors per bit 1712:Electromechanical memory used in the 1059:Vision Electronic Recording Apparatus 4249:List of pioneers in computer science 3345:IEEE Journal of Solid-State Circuits 3169:History of Semiconductor Engineering 2572: 2570: 2550: 2054:IBM Thomas J. Watson Research Center 1654:(DRAM) used for primary storage and 4853:Physics Abstraction Layer API Bench 3495:"1987: Toshiba Launches NAND Flash" 3437:"Toshiba: Inventor of Flash Memory" 3305:from the original on 27 April 2018. 3274:from the original on 27 April 2018. 2448: 1864:in the late 1940s, and improved by 1724:Detail of the back of a section of 1541:is often synonymous with the terms 24: 4638:HPC Challenge Random Memory Access 4437:(Computational Intensive Workload) 3672: 3542: 3487: 3386:Fulford, Benjamin (24 June 2002). 3142: 3047: 2551:Read, Jennifer (5 November 2020). 2166: 220:Data validation and reconciliation 25: 5112: 3601:"Semi-volatile NAND flash memory" 3398:from the original on 3 March 2008 3254:Han-Way Huang (5 December 2008). 3153:The DRAM memory of Robert Dennard 2631:"Documentation for /proc/sys/vm/" 2567: 2417:Virtual memory is a system where 2406: 2275:Spin-transfer torque magnetic RAM 1898:. Semiconductor memory made from 1894:circuit in the early 1960s using 270:Distributed file system for cloud 4666:(Commercial Processing Workload) 3260:. Cengage Learning. p. 22. 3257:Embedded System Design with C805 3035:from the original on 3 July 2017 118:Areal density (computer storage) 4895:Transaction Processing over XML 3628: 3592: 3578:from the original on 2013-01-27 3515: 3456: 3429: 3410: 3379: 3336: 3194: 3083: 3065: 2957: 2930: 2907: 2859: 2828: 2804: 2705:from the original on 2019-10-16 2665:from the original on 2003-07-25 2516: 2425:, which is part of many modern 2271:programmable metallization cell 2103:of Bell Labs proposed that the 2079:is also often used to refer to 2068:(SDRAM) later debuted with the 2014:The two main types of volatile 1948:) enabled the practical use of 1565:(for magnetic core memory) and 937:Programmable metallization cell 3561:Windows Server 2008 Inside Out 2739: 2677: 2637: 2623: 2598: 2544: 2309:A third category of memory is 2283:resistive random-access memory 2201:. SRAM is also found in small 1602:, where data is stored within 500:Persistence (computer science) 13: 1: 4743:Server Efficiency Rating Tool 4239:History of computing hardware 3689:Memory and Storage Technology 3681:Memory and Storage Technology 3599:Montierth, Briggs, Keithley. 3123:. Intel. 2003. Archived from 2537: 2355: 2093:Programmable read-only memory 2007:memory was commercialized by 1933: 1847:random-access computer memory 1746: 1368:Electronic quantum holography 4107:Network interface controller 2024:dynamic random-access memory 1652:dynamic random-access memory 719:Video RAM (dual-ported DRAM) 515:Non-RAID drive architectures 7: 4634:BSS Random Access benchmark 3904:Refreshable braille display 3846:Refreshable braille display 3679:Miller, Stephen W. (1977), 3635:Keppel, Naeimi, Nasrullah. 3558:Stanek, William R. (2009). 2868:Solid State Design - Vol. 6 2620:. University of Manchester. 2475: 2129:Electrotechnical Laboratory 2020:static random-access memory 1980:, switched cross-coupling, 1656:static random-access memory 1610:and other components on an 10: 5117: 2978:10.1109/N-SSC.2007.4785536 2924:10.1109/ISSCC.1965.1157606 2685:"MOS Memory Market Trends" 2452: 2410: 2359: 2219: 2189:volatile memory is either 2178: 1937: 1918:(IC) chip was proposed by 1692: 1308:Holographic Versatile Disc 1207:Compact Disc Digital Audio 1079:Magnetic-tape data storage 698:Content-addressable memory 4987:Adjusted Peak Performance 4979: 4957: 4914: 4880: 4861: 4843: 4820: 4796: 4778: 4759: 4752: 4700: 4677: 4646: 4625: 4591: 4570: 4561: 4518: 4499: 4482: 4444: 4385: 4378: 4340: 4298: 4231: 4175: 4134: 4125: 4003: 3939: 3882: 3811: 3746: 3737: 3365:10.1109/JSSC.1972.1052895 3291:. Springer. p. 136. 3029:Old Calculator Web Museum 2607:and R.A. Brooker (1952). 2348:, which uses an external 2205:requiring little memory. 2123:(erasable PROM) in 1971. 2072:KM48SL2000 chip in 1992. 1966:Royal Radar Establishment 1950:metal–oxide–semiconductor 505:Persistent data structure 400:Digital rights management 4685:Hierarchical INTegration 4678:Computer system (entire) 4501:Graphics processing unit 4484:Digital signal processor 3683:, Montvale.: AFIPS Press 3481:10.1109/IEDM.1987.191485 3202:"KM48SL2000-7 Datasheet" 2509: 2324:As a second example, an 2040:introduced bipolar DRAM 1380:DNA digital data storage 1363:Holographic data storage 852:Solid-state hybrid drive 138:Network-attached storage 4916:Web server benchmarking 4812:AIM Multiuser Benchmark 4543:HPC Challenge Benchmark 4538:NAS Parallel Benchmarks 4326:Giga-updates per second 4013:Central processing unit 3528:Computer History Museum 3322:Computer History Museum 3096:Encyclopedia Britannica 3077:Computer History Museum 2943:Computer History Museum 2893:Computer History Museum 2835:Orton, John W. (2009). 2816:www.computerhistory.org 2790:Computer History Museum 2752:Computer History Museum 2733:Computer History Museum 2696:Smithsonian Institution 2656:Smithsonian Institution 2645:"The MOS Memory Market" 2584:Encyclopedia Britannica 2373: 2095:(PROM) was invented by 2044:for its Toscal BC-1411 1995:(MOS IC) technology by 1958:Fairchild Semiconductor 1924:Fairchild Semiconductor 1908:United States Air Force 1658:(SRAM) used mainly for 1375:5D optical data storage 1192:3D optical data storage 915:Universal Flash Storage 320:Replication (computing) 265:Distributed file system 155:Single-instance storage 133:Direct-attached storage 113:Continuous availability 4664:IBM iSeries benchmarks 4435:IBM iSeries benchmarks 2871:. Horizon House. 1965. 2423:memory management unit 2176: 1993:MOS integrated circuit 1792: 1752: 1742:used as memory in the 1732: 1717: 1705: 1248:Nintendo optical discs 465:Storage virtualization 335:Information repository 275:Distributed data store 40: 4882:Database transactions 4579:BreakingPoint Systems 4528:DEISA Benchmark Suite 4332:CPU power dissipation 2174: 2162:Volatility categories 2087:(ROM) through modern 2046:electronic calculator 1988:. The development of 1952:(MOS) transistors as 1920:applications engineer 1902:was first shipped by 1890:was implemented as a 1803:, using thousands of 1758: 1738: 1723: 1711: 1700: 751:Mellon optical memory 739:Williams–Kilburn tube 455:Locality of reference 260:Clustered file system 86:Memory access pattern 51:computer data storage 35: 4316:Performance per watt 4311:Proprietary software 3475:. pp. 552–555. 3176:. pp. 362–363. 3156:history-computer.com 2305:Semi-volatile memory 2109:semiconductor device 2016:random-access memory 1962:semiconductor memory 1888:semiconductor memory 1881:semiconductor memory 1858:Magnetic-core memory 1778:magnetic-core memory 1646:memory. Examples of 1600:semiconductor memory 1447:Magnetic-core memory 1094:Digital Data Storage 1054:Quadruplex videotape 495:In-memory processing 385:Information transfer 280:Distributed database 143:Storage area network 123:Block (data storage) 5101:Digital electronics 5043:Phoronix Test Suite 4387:Floating-point unit 3357:1972IJSSC...7..369T 3228:"Electronic Design" 2497:Processor registers 2492:Memory organization 2222:Non-volatile memory 2216:Non-volatile memory 2081:non-volatile memory 2032:System/360 Model 95 1896:bipolar transistors 1854:non-volatile memory 1824:bits of information 1624:non-volatile memory 1044:Phonograph cylinder 982:Electrochemical RAM 834:Solid-state storage 450:Memory segmentation 148:Block-level storage 5049:Performance Rating 4770:Browser speed test 4701:Energy consumption 4520:Parallel computing 3426: Fujio Masuoka 3166:Lojek, Bo (2007). 3130:on 4 November 2021 2729:The Silicon Engine 2616:2014-01-02 at the 2392:segmentation fault 2346:battery-backed RAM 2177: 2143:in 1984, and then 1986:delay-line storage 1916:integrated circuit 1793: 1753: 1733: 1718: 1706: 1612:integrated circuit 1578:mass storage cache 1453:Plated-wire memory 1418:Paper data storage 1064:Magnetic recording 490:In-memory database 475:Memory-mapped file 420:Volume boot record 415:Master boot record 405:Volume (computing) 380:Data communication 305:Data deduplication 41: 5078: 5077: 4980:Platform specific 4975: 4974: 4708:Average CPU power 4673: 4672: 4557: 4556: 4257: 4256: 4227: 4226: 4157:Analog audio jack 3878: 3877: 3571:978-0-7356-3806-8 3298:978-3-642-36318-4 3267:978-1-111-81079-5 3233:Electronic Design 2852:978-0-08-096390-7 2579:"Computer memory" 2455:Memory protection 2368:operating systems 2362:Memory management 2336:, which combines 2267:ferroelectric RAM 2158:(VLM) computers. 2154:very large memory 2064:in October 1970. 2050:Robert H. Dennard 1904:Texas Instruments 1843:cathode-ray tubes 1816:J. Presper Eckert 1812:delay-line memory 1669:each storing one 1528: 1527: 1125:8 mm video format 1049:Phonograph record 868:Flash Core Module 846:Solid-state drive 745:Delay-line memory 704:Computational RAM 607:Scratchpad memory 445:Disk partitioning 170:Unstructured data 96:Secondary storage 16:(Redirected from 5108: 5021:embedded systems 4757: 4756: 4722:embedded systems 4568: 4567: 4383: 4382: 4348:BAPCo consortium 4284: 4277: 4270: 4261: 4260: 4132: 4131: 3783:Optical trackpad 3748:Pointing devices 3744: 3743: 3720: 3713: 3706: 3697: 3696: 3692: 3684: 3666: 3665: 3659: 3651: 3649: 3647: 3632: 3626: 3625: 3619: 3611: 3609: 3607: 3596: 3590: 3589: 3584: 3583: 3555: 3540: 3539: 3537: 3535: 3519: 3513: 3512: 3510: 3508: 3503:. April 11, 2012 3491: 3485: 3484: 3460: 3454: 3453: 3451: 3449: 3433: 3427: 3425: 3424: 3420: 3414: 3408: 3407: 3405: 3403: 3383: 3377: 3376: 3340: 3334: 3333: 3331: 3329: 3313: 3307: 3306: 3282: 3276: 3275: 3251: 3245: 3244: 3224: 3218: 3217: 3215: 3213: 3198: 3192: 3191: 3163: 3157: 3149: 3140: 3139: 3137: 3135: 3129: 3122: 3114: 3108: 3107: 3105: 3103: 3091:"Robert Dennard" 3087: 3081: 3080: 3069: 3063: 3062: 3057:. Archived from 3051: 3045: 3044: 3042: 3040: 3021: 3015: 3014: 3012: 3010: 2991: 2982: 2981: 2961: 2955: 2954: 2952: 2950: 2934: 2928: 2927: 2911: 2905: 2904: 2902: 2900: 2884: 2873: 2872: 2863: 2857: 2856: 2832: 2826: 2825: 2823: 2822: 2808: 2802: 2801: 2799: 2797: 2781: 2764: 2763: 2761: 2759: 2743: 2737: 2736: 2721: 2715: 2714: 2712: 2710: 2704: 2689: 2681: 2675: 2674: 2672: 2670: 2664: 2649: 2641: 2635: 2634: 2627: 2621: 2602: 2596: 2595: 2593: 2591: 2574: 2565: 2564: 2562: 2560: 2548: 2531: 2520: 2503:Universal memory 2487:Memory hierarchy 2449:Protected memory 2299:millipede memory 2287:racetrack memory 2236:hard disk drives 2228:read-only memory 2203:embedded systems 2156: 2155: 2085:read-only memory 1900:discrete devices 1797:digital computer 1787: 1783: 1772: 1769:card on top of 8 1762: 1751: 1748: 1679:multi-level cell 1520: 1513: 1506: 1465:Thin-film memory 1459:Core rope memory 1385:Universal memory 1348:Millipede memory 1338:Racetrack memory 1303:Ultra HD Blu-ray 1115:Linear Tape-Open 1069:Magnetic storage 1037:Analog recording 480:Software entropy 440:Disk aggregation 200:Data degradation 185:Data compression 81:Memory hierarchy 71:Memory coherence 43: 42: 21: 5116: 5115: 5111: 5110: 5109: 5107: 5106: 5105: 5091:Computer memory 5081: 5080: 5079: 5074: 4971: 4959:X Window System 4953: 4910: 4876: 4857: 4839: 4822:Virtual machine 4816: 4792: 4788:Cycles per byte 4774: 4748: 4696: 4669: 4642: 4627:Computer memory 4621: 4587: 4553: 4533:Livermore loops 4514: 4495: 4478: 4440: 4374: 4336: 4294: 4288: 4258: 4253: 4223: 4171: 4121: 3999: 3993:USB flash drive 3942: 3935: 3874: 3807: 3761:Game controller 3756:Graphics tablet 3733: 3724: 3687: 3675: 3673:Further reading 3670: 3669: 3653: 3652: 3645: 3643: 3633: 3629: 3613: 3612: 3605: 3603: 3597: 3593: 3581: 3579: 3572: 3556: 3543: 3533: 3531: 3521: 3520: 3516: 3506: 3504: 3493: 3492: 3488: 3461: 3457: 3447: 3445: 3435: 3434: 3430: 3422: 3416: 3415: 3411: 3401: 3399: 3384: 3380: 3341: 3337: 3327: 3325: 3315: 3314: 3310: 3299: 3283: 3279: 3268: 3252: 3248: 3226: 3225: 3221: 3211: 3209: 3200: 3199: 3195: 3184: 3164: 3160: 3150: 3143: 3133: 3131: 3127: 3120: 3116: 3115: 3111: 3101: 3099: 3089: 3088: 3084: 3071: 3070: 3066: 3053: 3052: 3048: 3038: 3036: 3023: 3022: 3018: 3008: 3006: 3005:. 9 August 2017 2993: 2992: 2985: 2962: 2958: 2948: 2946: 2936: 2935: 2931: 2912: 2908: 2898: 2896: 2886: 2885: 2876: 2865: 2864: 2860: 2853: 2845:. p. 104. 2833: 2829: 2820: 2818: 2810: 2809: 2805: 2795: 2793: 2783: 2782: 2767: 2757: 2755: 2745: 2744: 2740: 2723: 2722: 2718: 2708: 2706: 2702: 2687: 2683: 2682: 2678: 2668: 2666: 2662: 2647: 2643: 2642: 2638: 2629: 2628: 2624: 2618:Wayback Machine 2603: 2599: 2589: 2587: 2575: 2568: 2558: 2556: 2549: 2545: 2540: 2535: 2534: 2521: 2517: 2512: 2482:Memory geometry 2478: 2457: 2451: 2439:cache hierarchy 2419:physical memory 2415: 2409: 2399:buffer overflow 2376: 2364: 2358: 2307: 2224: 2218: 2183: 2181:Volatile memory 2169: 2167:Volatile memory 2164: 2153: 2152: 1997:Federico Faggin 1942: 1936: 1870:Jan A. Rajchman 1814:, developed by 1785: 1781: 1770: 1760: 1749: 1695: 1648:volatile memory 1608:MOS transistors 1557:primary storage 1531:Computer memory 1524: 1495: 1494: 1413: 1405: 1404: 1358:Patterned media 1328: 1320: 1319: 1187: 1177: 1176: 1172:Hard disk drive 1039: 1029: 1028: 1009: 998: 997: 952: 942: 941: 863:IBM FlashSystem 858:USB flash drive 797: 780: 779: 734: 726: 725: 714:Dual-ported RAM 592: 575: 574: 535:Cloud computing 395:Copy protection 315:Data redundancy 245:Shared resource 215:Data validation 190:Data corruption 165:Structured data 76:Cache coherence 61: 47:Computer memory 28: 23: 22: 15: 12: 11: 5: 5114: 5104: 5103: 5098: 5093: 5076: 5075: 5073: 5072: 5066: 5052: 5046: 5040: 5030: 5024: 5014: 5004: 4994: 4991:Nuclear weapon 4983: 4981: 4977: 4976: 4973: 4972: 4970: 4969: 4963: 4961: 4955: 4954: 4952: 4951: 4946: 4941: 4936: 4931: 4926: 4920: 4918: 4912: 4911: 4909: 4908: 4898: 4892: 4890:TATP Benchmark 4886: 4884: 4878: 4877: 4875: 4874: 4872:Tak (function) 4868: 4866: 4859: 4858: 4856: 4855: 4849: 4847: 4845:Physics engine 4841: 4840: 4838: 4837: 4832: 4826: 4824: 4818: 4817: 4815: 4814: 4809: 4803: 4801: 4794: 4793: 4791: 4790: 4784: 4782: 4776: 4775: 4773: 4772: 4766: 4764: 4754: 4750: 4749: 4747: 4746: 4740: 4730: 4725: 4715: 4704: 4702: 4698: 4697: 4695: 4694: 4688: 4681: 4679: 4675: 4674: 4671: 4670: 4668: 4667: 4661: 4658: 4652: 4650: 4644: 4643: 4641: 4640: 4635: 4631: 4629: 4623: 4622: 4620: 4619: 4614: 4609: 4604: 4598: 4596: 4589: 4588: 4586: 4585: 4580: 4576: 4574: 4565: 4559: 4558: 4555: 4554: 4552: 4551: 4545: 4540: 4535: 4530: 4524: 4522: 4516: 4515: 4513: 4512: 4506: 4504: 4497: 4496: 4494: 4493: 4489: 4487: 4480: 4479: 4477: 4476: 4471: 4466: 4461: 4455: 4453: 4442: 4441: 4439: 4438: 4432: 4427: 4422: 4417: 4412: 4407: 4402: 4396: 4394: 4380: 4376: 4375: 4373: 4372: 4366: 4360: 4355: 4350: 4344: 4342: 4338: 4337: 4335: 4334: 4329: 4323: 4318: 4313: 4308: 4302: 4300: 4296: 4295: 4287: 4286: 4279: 4272: 4264: 4255: 4254: 4252: 4251: 4246: 4241: 4235: 4233: 4229: 4228: 4225: 4224: 4222: 4221: 4216: 4211: 4206: 4201: 4196: 4191: 4186: 4179: 4177: 4173: 4172: 4170: 4169: 4164: 4159: 4154: 4149: 4144: 4138: 4136: 4129: 4123: 4122: 4120: 4119: 4117:Expansion card 4114: 4109: 4104: 4103: 4102: 4097: 4087: 4086: 4085: 4075: 4074: 4073: 4068: 4054: 4044: 4043: 4042: 4037: 4027: 4022: 4021: 4020: 4018:Microprocessor 4009: 4007: 4001: 4000: 3998: 3997: 3996: 3995: 3990: 3980: 3979: 3978: 3973: 3968: 3958: 3953: 3947: 3945: 3937: 3936: 3934: 3933: 3928: 3923: 3918: 3917: 3916: 3906: 3901: 3900: 3899: 3888: 3886: 3884:Output devices 3880: 3879: 3876: 3875: 3873: 3872: 3871: 3870: 3860: 3859: 3858: 3848: 3843: 3838: 3837: 3836: 3826: 3821: 3815: 3813: 3809: 3808: 3806: 3805: 3800: 3795: 3790: 3788:Pointing stick 3785: 3780: 3779: 3778: 3768: 3763: 3758: 3752: 3750: 3741: 3735: 3734: 3723: 3722: 3715: 3708: 3700: 3694: 3693: 3685: 3674: 3671: 3668: 3667: 3641:Google Patents 3627: 3591: 3570: 3541: 3514: 3486: 3455: 3428: 3409: 3378: 3351:(5): 369–375. 3335: 3308: 3297: 3277: 3266: 3246: 3219: 3193: 3182: 3158: 3141: 3109: 3082: 3064: 3061:on 2007-05-20. 3046: 3016: 2983: 2956: 2929: 2906: 2874: 2858: 2851: 2843:Academic Press 2827: 2803: 2765: 2738: 2716: 2676: 2636: 2622: 2597: 2566: 2542: 2541: 2539: 2536: 2533: 2532: 2514: 2513: 2511: 2508: 2507: 2506: 2500: 2494: 2489: 2484: 2477: 2474: 2453:Main article: 2450: 2447: 2413:Virtual memory 2411:Main article: 2408: 2407:Virtual memory 2405: 2404: 2403: 2395: 2388: 2375: 2372: 2360:Main article: 2357: 2354: 2306: 2303: 2220:Main article: 2217: 2214: 2179:Main article: 2168: 2165: 2163: 2160: 2097:Wen Tsing Chow 1938:Main article: 1935: 1932: 1922:Bob Norman at 1883:in the 1960s. 1839:Selectron tube 1694: 1691: 1622:. Examples of 1592:virtual memory 1526: 1525: 1523: 1522: 1515: 1508: 1500: 1497: 1496: 1493: 1492: 1486: 1480: 1477:Twistor memory 1474: 1468: 1462: 1456: 1450: 1444: 1438: 1433: 1427: 1421: 1414: 1411: 1410: 1407: 1406: 1403: 1402: 1397: 1395:Quantum memory 1392: 1387: 1382: 1377: 1372: 1371: 1370: 1360: 1355: 1350: 1345: 1340: 1335: 1329: 1327:In development 1326: 1325: 1322: 1321: 1318: 1317: 1312: 1311: 1310: 1305: 1300: 1295: 1290: 1285: 1280: 1275: 1270: 1265: 1260: 1255: 1250: 1245: 1240: 1238:Super Video CD 1235: 1230: 1225: 1220: 1215: 1210: 1204: 1199: 1188: 1183: 1182: 1179: 1178: 1175: 1174: 1169: 1168: 1167: 1162: 1157: 1152: 1147: 1142: 1137: 1132: 1127: 1122: 1117: 1112: 1107: 1102: 1097: 1091: 1086: 1081: 1076: 1071: 1061: 1056: 1051: 1046: 1040: 1035: 1034: 1031: 1030: 1027: 1026: 1021: 1016: 1010: 1004: 1003: 1000: 999: 996: 995: 990: 985: 979: 974: 964: 959: 953: 948: 947: 944: 943: 940: 939: 934: 933: 932: 927: 922: 917: 912: 907: 902: 897: 895:MultiMediaCard 892: 887: 882: 872: 871: 870: 865: 860: 855: 849: 843: 831: 826: 825: 824: 819: 809: 804: 798: 793: 792: 789: 788: 782: 781: 778: 777: 771: 765: 760: 757:Selectron tube 754: 748: 742: 735: 732: 731: 728: 727: 724: 723: 722: 721: 711: 706: 701: 695: 690: 685: 684: 683: 673: 672: 671: 666: 661: 656: 651: 646: 641: 636: 631: 626: 621: 611: 610: 609: 604: 597:Hardware cache 593: 588: 587: 584: 583: 577: 576: 573: 572: 567: 562: 557: 552: 550:Edge computing 547: 542: 537: 532: 530:Grid computing 527: 525:Bank switching 522: 517: 512: 507: 502: 497: 492: 487: 482: 477: 472: 470:Virtual memory 467: 462: 457: 452: 447: 442: 437: 435:Disk mirroring 432: 427: 422: 417: 412: 407: 402: 397: 392: 390:Temporary file 387: 382: 377: 372: 367: 362: 357: 352: 347: 342: 340:Knowledge base 337: 332: 330:Storage record 327: 325:Memory refresh 322: 317: 312: 310:Data structure 307: 302: 297: 292: 287: 282: 277: 272: 267: 262: 257: 252: 247: 242: 237: 232: 227: 222: 217: 212: 207: 205:Data integrity 202: 197: 195:Data cleansing 192: 187: 182: 177: 172: 167: 162: 157: 152: 151: 150: 145: 135: 130: 128:Object storage 125: 120: 115: 110: 109: 108: 98: 93: 88: 83: 78: 73: 68: 62: 59: 58: 55: 54: 26: 9: 6: 4: 3: 2: 5113: 5102: 5099: 5097: 5094: 5092: 5089: 5088: 5086: 5070: 5067: 5064: 5060: 5056: 5053: 5050: 5047: 5044: 5041: 5038: 5035:(Windows and 5034: 5031: 5028: 5027:iCOMP (index) 5025: 5022: 5018: 5015: 5012: 5008: 5005: 5002: 4998: 4995: 4992: 4988: 4985: 4984: 4982: 4978: 4968: 4965: 4964: 4962: 4960: 4956: 4950: 4947: 4945: 4942: 4940: 4937: 4935: 4932: 4930: 4927: 4925: 4924:Apache JMeter 4922: 4921: 4919: 4917: 4913: 4906: 4902: 4899: 4896: 4893: 4891: 4888: 4887: 4885: 4883: 4879: 4873: 4870: 4869: 4867: 4864: 4860: 4854: 4851: 4850: 4848: 4846: 4842: 4836: 4833: 4831: 4828: 4827: 4825: 4823: 4819: 4813: 4810: 4808: 4805: 4804: 4802: 4799: 4795: 4789: 4786: 4785: 4783: 4781: 4777: 4771: 4768: 4767: 4765: 4762: 4758: 4755: 4751: 4744: 4741: 4738: 4734: 4731: 4729: 4726: 4723: 4719: 4716: 4713: 4709: 4706: 4705: 4703: 4699: 4693:(CPU, memory) 4692: 4689: 4686: 4683: 4682: 4680: 4676: 4665: 4662: 4659: 4657: 4654: 4653: 4651: 4649: 4645: 4639: 4636: 4633: 4632: 4630: 4628: 4624: 4618: 4615: 4613: 4610: 4608: 4605: 4603: 4600: 4599: 4597: 4594: 4590: 4584: 4581: 4578: 4577: 4575: 4573: 4569: 4566: 4564: 4560: 4549: 4546: 4544: 4541: 4539: 4536: 4534: 4531: 4529: 4526: 4525: 4523: 4521: 4517: 4511: 4508: 4507: 4505: 4502: 4498: 4491: 4490: 4488: 4485: 4481: 4475: 4472: 4470: 4467: 4465: 4462: 4460: 4457: 4456: 4454: 4451: 4447: 4443: 4436: 4433: 4431: 4428: 4426: 4423: 4421: 4418: 4416: 4413: 4411: 4408: 4406: 4403: 4401: 4398: 4397: 4395: 4392: 4388: 4384: 4381: 4377: 4370: 4367: 4364: 4361: 4359: 4356: 4354: 4351: 4349: 4346: 4345: 4343: 4341:Organizations 4339: 4333: 4330: 4327: 4324: 4322: 4319: 4317: 4314: 4312: 4309: 4307: 4306:Free software 4304: 4303: 4301: 4297: 4293: 4285: 4280: 4278: 4273: 4271: 4266: 4265: 4262: 4250: 4247: 4245: 4242: 4240: 4237: 4236: 4234: 4230: 4220: 4217: 4215: 4212: 4210: 4207: 4205: 4202: 4200: 4197: 4195: 4192: 4190: 4189:Parallel port 4187: 4184: 4181: 4180: 4178: 4174: 4168: 4165: 4163: 4160: 4158: 4155: 4153: 4150: 4148: 4145: 4143: 4140: 4139: 4137: 4133: 4130: 4128: 4124: 4118: 4115: 4113: 4110: 4108: 4105: 4101: 4098: 4096: 4093: 4092: 4091: 4088: 4084: 4081: 4080: 4079: 4076: 4072: 4069: 4066: 4062: 4058: 4055: 4053: 4050: 4049: 4048: 4045: 4041: 4038: 4036: 4033: 4032: 4031: 4028: 4026: 4023: 4019: 4016: 4015: 4014: 4011: 4010: 4008: 4006: 4005:Computer case 4002: 3994: 3991: 3989: 3986: 3985: 3984: 3981: 3977: 3974: 3972: 3969: 3967: 3964: 3963: 3962: 3959: 3957: 3954: 3952: 3949: 3948: 3946: 3944: 3938: 3932: 3931:Graphics card 3929: 3927: 3924: 3922: 3919: 3915: 3912: 3911: 3910: 3907: 3905: 3902: 3898: 3895: 3894: 3893: 3890: 3889: 3887: 3885: 3881: 3869: 3866: 3865: 3864: 3861: 3857: 3854: 3853: 3852: 3849: 3847: 3844: 3842: 3839: 3835: 3832: 3831: 3830: 3829:Graphics card 3827: 3825: 3824:Image scanner 3822: 3820: 3817: 3816: 3814: 3810: 3804: 3801: 3799: 3796: 3794: 3791: 3789: 3786: 3784: 3781: 3777: 3774: 3773: 3772: 3769: 3767: 3764: 3762: 3759: 3757: 3754: 3753: 3751: 3749: 3745: 3742: 3740: 3739:Input devices 3736: 3732: 3729: 3721: 3716: 3714: 3709: 3707: 3702: 3701: 3698: 3690: 3686: 3682: 3677: 3676: 3663: 3657: 3642: 3638: 3631: 3623: 3617: 3602: 3595: 3588: 3577: 3573: 3567: 3563: 3562: 3554: 3552: 3550: 3548: 3546: 3530: 3529: 3524: 3518: 3502: 3501: 3496: 3490: 3482: 3478: 3474: 3470: 3466: 3459: 3444: 3443: 3438: 3432: 3419: 3413: 3397: 3393: 3389: 3388:"Unsung hero" 3382: 3374: 3370: 3366: 3362: 3358: 3354: 3350: 3346: 3339: 3324: 3323: 3318: 3312: 3304: 3300: 3294: 3290: 3289: 3281: 3273: 3269: 3263: 3259: 3258: 3250: 3243: 3239: 3235: 3234: 3229: 3223: 3208:. August 1992 3207: 3203: 3197: 3190: 3185: 3183:9783540342588 3179: 3175: 3171: 3170: 3162: 3155: 3154: 3148: 3146: 3126: 3119: 3113: 3098: 3097: 3092: 3086: 3078: 3074: 3068: 3060: 3056: 3050: 3034: 3030: 3026: 3020: 3004: 3000: 2996: 2990: 2988: 2979: 2975: 2971: 2967: 2960: 2945: 2944: 2939: 2933: 2925: 2921: 2917: 2910: 2895: 2894: 2889: 2883: 2881: 2879: 2870: 2869: 2862: 2854: 2848: 2844: 2840: 2839: 2831: 2817: 2813: 2807: 2792: 2791: 2786: 2780: 2778: 2776: 2774: 2772: 2770: 2754: 2753: 2748: 2742: 2734: 2730: 2726: 2720: 2701: 2697: 2693: 2686: 2680: 2661: 2657: 2653: 2646: 2640: 2632: 2626: 2619: 2615: 2612: 2611: 2606: 2601: 2586: 2585: 2580: 2573: 2571: 2554: 2547: 2543: 2529: 2525: 2519: 2515: 2504: 2501: 2498: 2495: 2493: 2490: 2488: 2485: 2483: 2480: 2479: 2473: 2471: 2467: 2461: 2456: 2446: 2444: 2440: 2436: 2432: 2428: 2424: 2420: 2414: 2400: 2396: 2393: 2389: 2385: 2381: 2380: 2379: 2371: 2369: 2363: 2353: 2351: 2347: 2343: 2339: 2335: 2330: 2327: 2322: 2319: 2314: 2312: 2311:semi-volatile 2302: 2300: 2296: 2292: 2288: 2284: 2280: 2276: 2272: 2268: 2263: 2261: 2260:punched cards 2257: 2253: 2252:magnetic drum 2249: 2248:optical discs 2245: 2244:magnetic tape 2241: 2237: 2233: 2229: 2223: 2213: 2211: 2206: 2204: 2200: 2196: 2192: 2188: 2187:semiconductor 2182: 2173: 2159: 2157: 2148: 2146: 2142: 2138: 2134: 2133:Fujio Masuoka 2130: 2126: 2122: 2118: 2114: 2110: 2106: 2105:floating gate 2102: 2098: 2094: 2090: 2086: 2082: 2078: 2073: 2071: 2067: 2063: 2059: 2055: 2051: 2047: 2043: 2039: 2035: 2033: 2029: 2025: 2021: 2017: 2012: 2010: 2006: 2002: 1998: 1994: 1991: 1987: 1983: 1979: 1975: 1974:power devices 1971: 1967: 1963: 1959: 1955: 1951: 1947: 1941: 1931: 1929: 1925: 1921: 1917: 1914:memory on an 1913: 1909: 1905: 1901: 1897: 1893: 1889: 1884: 1882: 1879: 1875: 1871: 1867: 1866:Jay Forrester 1863: 1859: 1855: 1850: 1848: 1844: 1840: 1836: 1835:Williams tube 1831: 1829: 1825: 1821: 1817: 1813: 1808: 1806: 1802: 1798: 1790: 1779: 1775: 1768: 1765: 1757: 1745: 1741: 1740:Williams tube 1737: 1731: 1727: 1722: 1715: 1710: 1704: 1699: 1690: 1688: 1684: 1680: 1676: 1672: 1668: 1663: 1661: 1657: 1653: 1649: 1645: 1641: 1637: 1633: 1629: 1625: 1621: 1617: 1613: 1609: 1605: 1601: 1596: 1594: 1593: 1587: 1583: 1579: 1575: 1570: 1568: 1564: 1560: 1558: 1553: 1551: 1547: 1545: 1540: 1536: 1532: 1521: 1516: 1514: 1509: 1507: 1502: 1501: 1499: 1498: 1490: 1487: 1484: 1483:Bubble memory 1481: 1478: 1475: 1472: 1469: 1466: 1463: 1460: 1457: 1454: 1451: 1448: 1445: 1442: 1439: 1437: 1434: 1431: 1428: 1425: 1422: 1419: 1416: 1415: 1409: 1408: 1401: 1398: 1396: 1393: 1391: 1388: 1386: 1383: 1381: 1378: 1376: 1373: 1369: 1366: 1365: 1364: 1361: 1359: 1356: 1354: 1351: 1349: 1346: 1344: 1341: 1339: 1336: 1334: 1331: 1330: 1324: 1323: 1316: 1313: 1309: 1306: 1304: 1301: 1299: 1296: 1294: 1291: 1289: 1286: 1284: 1281: 1279: 1276: 1274: 1271: 1269: 1266: 1264: 1261: 1259: 1256: 1254: 1251: 1249: 1246: 1244: 1241: 1239: 1236: 1234: 1231: 1229: 1226: 1224: 1221: 1219: 1216: 1214: 1211: 1208: 1205: 1203: 1200: 1198: 1195: 1194: 1193: 1190: 1189: 1186: 1181: 1180: 1173: 1170: 1166: 1163: 1161: 1158: 1156: 1153: 1151: 1148: 1146: 1143: 1141: 1138: 1136: 1133: 1131: 1128: 1126: 1123: 1121: 1118: 1116: 1113: 1111: 1110:Cassette tape 1108: 1106: 1105:Videocassette 1103: 1101: 1098: 1095: 1092: 1090: 1087: 1085: 1082: 1080: 1077: 1075: 1074:Magnetic tape 1072: 1070: 1067: 1066: 1065: 1062: 1060: 1057: 1055: 1052: 1050: 1047: 1045: 1042: 1041: 1038: 1033: 1032: 1025: 1022: 1020: 1017: 1015: 1012: 1011: 1008: 1002: 1001: 994: 991: 989: 986: 983: 980: 978: 975: 972: 968: 965: 963: 960: 958: 955: 954: 951: 946: 945: 938: 935: 931: 928: 926: 923: 921: 918: 916: 913: 911: 908: 906: 903: 901: 898: 896: 893: 891: 888: 886: 883: 881: 878: 877: 876: 873: 869: 866: 864: 861: 859: 856: 853: 850: 847: 844: 841: 838: 837: 835: 832: 830: 829:ROM cartridge 827: 823: 820: 818: 815: 814: 813: 810: 808: 805: 803: 800: 799: 796: 791: 790: 787: 784: 783: 775: 772: 769: 766: 764: 761: 758: 755: 752: 749: 746: 743: 740: 737: 736: 730: 729: 720: 717: 716: 715: 712: 710: 707: 705: 702: 699: 696: 694: 691: 689: 686: 682: 679: 678: 677: 674: 670: 667: 665: 662: 660: 657: 655: 652: 650: 647: 645: 642: 640: 637: 635: 632: 630: 627: 625: 622: 620: 617: 616: 615: 612: 608: 605: 603: 600: 599: 598: 595: 594: 591: 586: 585: 582: 579: 578: 571: 568: 566: 563: 561: 558: 556: 555:Dew computing 553: 551: 548: 546: 545:Fog computing 543: 541: 540:Cloud storage 538: 536: 533: 531: 528: 526: 523: 521: 520:Memory paging 518: 516: 513: 511: 508: 506: 503: 501: 498: 496: 493: 491: 488: 486: 483: 481: 478: 476: 473: 471: 468: 466: 463: 461: 458: 456: 453: 451: 448: 446: 443: 441: 438: 436: 433: 431: 428: 426: 423: 421: 418: 416: 413: 411: 408: 406: 403: 401: 398: 396: 393: 391: 388: 386: 383: 381: 378: 376: 373: 371: 368: 366: 363: 361: 358: 356: 355:File deletion 353: 351: 348: 346: 345:Computer file 343: 341: 338: 336: 333: 331: 328: 326: 323: 321: 318: 316: 313: 311: 308: 306: 303: 301: 298: 296: 293: 291: 288: 286: 283: 281: 278: 276: 273: 271: 268: 266: 263: 261: 258: 256: 253: 251: 248: 246: 243: 241: 238: 236: 233: 231: 228: 226: 225:Data recovery 223: 221: 218: 216: 213: 211: 210:Data security 208: 206: 203: 201: 198: 196: 193: 191: 188: 186: 183: 181: 178: 176: 173: 171: 168: 166: 163: 161: 158: 156: 153: 149: 146: 144: 141: 140: 139: 136: 134: 131: 129: 126: 124: 121: 119: 116: 114: 111: 107: 106:floating-gate 104: 103: 102: 99: 97: 94: 92: 89: 87: 84: 82: 79: 77: 74: 72: 69: 67: 64: 63: 57: 56: 52: 48: 45: 44: 38: 34: 30: 19: 18:Memory device 5063:Motorola 68k 4780:Cryptography 4648:Input/output 4626: 4095:Power MOSFET 4078:Power supply 4047:Data storage 4029: 3983:Flash memory 3961:Optical disc 3943:data storage 3688: 3680: 3644:. Retrieved 3640: 3630: 3604:. Retrieved 3594: 3586: 3580:. Retrieved 3560: 3532:. Retrieved 3526: 3517: 3505:. Retrieved 3498: 3489: 3464: 3458: 3446:. Retrieved 3440: 3431: 3412: 3400:. Retrieved 3391: 3381: 3348: 3344: 3338: 3326:. Retrieved 3320: 3311: 3287: 3280: 3256: 3249: 3241: 3237: 3231: 3222: 3210:. Retrieved 3196: 3187: 3168: 3161: 3152: 3132:. Retrieved 3125:the original 3112: 3100:. Retrieved 3094: 3085: 3076: 3067: 3059:the original 3049: 3037:. Retrieved 3028: 3019: 3009:20 September 3007:. Retrieved 2998: 2972:(1): 19–22. 2969: 2965: 2959: 2947:. Retrieved 2941: 2932: 2915: 2909: 2897:. Retrieved 2891: 2867: 2861: 2837: 2830: 2819:. Retrieved 2815: 2806: 2794:. Retrieved 2788: 2756:. Retrieved 2750: 2741: 2728: 2719: 2707:. Retrieved 2691: 2679: 2667:. Retrieved 2651: 2639: 2625: 2609: 2600: 2588:. Retrieved 2582: 2557:. Retrieved 2546: 2518: 2462: 2458: 2416: 2377: 2365: 2331: 2323: 2317: 2315: 2310: 2308: 2264: 2240:floppy disks 2232:flash memory 2225: 2207: 2184: 2151: 2149: 2089:flash memory 2076: 2074: 2042:memory cells 2036: 2013: 2001:memory chips 1990:silicon-gate 1978:power supply 1943: 1885: 1851: 1832: 1809: 1805:vacuum tubes 1794: 1744:IAS computer 1730:vacuum tubes 1686: 1675:Flash memory 1667:memory cells 1664: 1628:flash memory 1620:non-volatile 1604:memory cells 1597: 1590: 1582:write buffer 1574:mass storage 1571: 1566: 1562: 1555: 1548: 1542: 1538: 1530: 1529: 1430:Punched tape 1424:Punched card 1390:Time crystal 1258:Hyper CD-ROM 1197:Optical disc 1089:Tape library 1024:FeFET memory 1005:Early-stage 885:CompactFlash 880:Memory Stick 840:Flash memory 802:Diode matrix 786:Non-volatile 570:Kryder's law 560:Amdahl's law 485:Software rot 460:Logical disk 360:File copying 295:Data storage 250:File sharing 235:Data cluster 46: 29: 4993:simulation) 4929:Curl-loader 4865:performance 4595:and storage 4593:Filesystems 4563:Peripherals 4464:Fhourstones 4290:Processing 4194:Serial port 4185:(IEEE 1394) 4162:DisplayPort 4152:Thunderbolt 4025:Motherboard 3988:Memory card 3956:Floppy disk 3798:Touchscreen 2605:A.M. Turing 2433:(e.g. in a 2384:memory leak 2195:dynamic RAM 2113:Dov Frohman 2022:(SRAM) and 1954:memory cell 1912:solid-state 1874:Whirlwind I 1828:transducers 1750: 1951 1683:word length 1606:built from 1550:main memory 1537:. The term 1489:Floppy disk 1441:Drum memory 875:Memory card 842:is used in: 776:(2002–2010) 741:(1946–1947) 565:Moore's law 410:Boot sector 350:Object file 255:File system 66:Memory cell 5085:Categories 5069:WorldBench 4761:JavaScript 4425:SuperPrime 4358:Futuremark 4292:benchmarks 3941:Removable 3926:Sound card 3856:Sound chip 3851:Sound card 3841:Microphone 3731:components 3582:2012-08-20 3418:US 4531203 2821:2019-11-14 2709:16 October 2669:16 October 2590:16 October 2559:2 November 2538:References 2431:hard drive 2356:Management 2256:paper tape 2193:(SRAM) or 2191:static RAM 2145:NAND flash 2119:inventing 2083:including 2062:Intel 1103 2058:capacitors 2018:(RAM) are 1940:MOS memory 1934:MOS memory 1886:The first 1728:, showing 1673:(0 or 1). 1412:Historical 1084:Tape drive 910:SmartMedia 733:Historical 430:Disk image 425:Disk array 300:Data store 101:MOS memory 91:Memory map 37:DDR4 SDRAM 5071:(Windows) 5033:Novabench 4863:Recursion 4798:Multiuser 4739:software) 4733:SPECpower 4459:Dhrystone 4430:Whetstone 4379:Processor 4204:PS/2 port 4199:Game port 4112:Fax modem 3951:Disk pack 3803:Trackball 3766:Light pen 3373:0018-9200 2949:10 August 2470:debuggers 2443:thrashing 2295:3D XPoint 2199:CPU cache 2141:NOR flash 2107:of a MOS 2101:Simon Sze 2075:The term 1892:flip-flop 1784:core is 1 1767:microSDHC 1660:CPU cache 1471:Disk pack 1436:Plugboard 1273:DVD-Video 1202:LaserDisc 1100:Videotape 971:3D XPoint 962:Memristor 602:CPU cache 370:Core dump 290:Data bank 240:Directory 5059:SysSpeed 5017:Coremark 5007:BogoMips 4835:SPECvirt 4753:Software 4660:Ioblazer 4602:Bonnie++ 4550:(PARSEC) 4474:CoreMark 4420:Super PI 4328:(memory) 4299:Concepts 4183:FireWire 4176:Obsolete 4142:Ethernet 3921:Speakers 3819:Keyboard 3793:Touchpad 3728:computer 3656:cite web 3616:cite web 3576:Archived 3402:18 March 3396:Archived 3303:Archived 3272:Archived 3033:Archived 2758:2 August 2700:Archived 2698:. 1998. 2660:Archived 2658:. 1997. 2614:Archived 2555:. EMSNow 2476:See also 2466:rebooted 2435:swapfile 2291:Nano-RAM 1982:switches 1976:for the 1616:volatile 1535:computer 1400:UltraRAM 1278:DVD card 1233:Video CD 1218:CD Video 988:Nano-RAM 957:Memistor 930:XQD card 905:SIM card 763:Dekatron 649:XDR DRAM 644:EDO DRAM 581:Volatile 375:Hex dump 285:Database 180:Metadata 175:Big data 5096:MOSFETs 5055:Sysinfo 5045:(Linux) 5029:(Intel) 4967:Xmark93 4939:OpenSTA 4934:httperf 4656:Iometer 4617:Diskspd 4607:HD Tach 4572:Network 4510:BRL-CAD 4469:SPECint 4446:Integer 4415:Prime95 4405:LINPACK 4232:Related 4135:Current 3976:Blu-ray 3914:Plotter 3909:Printer 3892:Monitor 3868:Softcam 3776:Optical 3534:19 June 3507:20 June 3448:20 June 3442:Toshiba 3353:Bibcode 3328:19 June 3212:19 June 3206:Samsung 3134:26 June 2899:29 July 2796:19 June 2350:battery 2326:STT-RAM 2137:Toshiba 2070:Samsung 2052:at the 2038:Toshiba 1906:to the 1862:An Wang 1820:mercury 1714:IBM 602 1703:storage 1693:History 1485:(~1970) 1479:(~1968) 1461:(1960s) 1298:Blu-ray 1288:MiniDVD 1283:DVD-RAM 1243:Mini CD 1185:Optical 1145:U-matic 1140:MicroMV 1120:Betamax 984:(ECRAM) 925:MicroP2 900:SD card 890:PC Card 681:1T-SRAM 639:QDRSRAM 230:Storage 60:General 5057:& 4997:AnTuTu 4897:(TPoX) 4830:VMmark 4800:system 4763:engine 4745:(SERT) 4691:NBench 4687:(HINT) 4612:IOzone 4410:LAPACK 4400:SPECfp 4365:(SPEC) 4090:MOSFET 4030:Memory 3897:Screen 3863:Webcam 3726:Basic 3646:20 May 3606:20 May 3568:  3471:1987. 3423:  3392:Forbes 3371:  3295:  3264:  3180:  3102:8 July 2999:IBM100 2995:"DRAM" 2849:  2464:to be 2334:nvSRAM 2297:, and 2125:EEPROM 2077:memory 1946:MOSFET 1799:, the 1786:  1782:  1771:  1761:  1644:EEPROM 1642:, and 1539:memory 1491:(1971) 1473:(1962) 1467:(1962) 1455:(1957) 1449:(1949) 1443:(1932) 1432:(1725) 1426:(1725) 1420:(1725) 1293:HD DVD 1253:CD-ROM 1209:(CDDA) 1135:MiniDV 854:(SSHD) 836:(SSS) 822:EEPROM 770:(2009) 759:(1952) 753:(1951) 747:(1947) 365:Backup 5051:(AMD) 5037:macOS 5011:Linux 4949:Tsung 4944:TPC-W 4905:NoSQL 4718:EEMBC 4503:(GPU) 4486:(DSP) 4391:FLOPS 4371:(TPC) 4353:EEMBC 4209:eSATA 4127:Ports 3812:Other 3771:Mouse 3500:eWeek 3128:(PDF) 3121:(PDF) 3039:8 May 2703:(PDF) 2688:(PDF) 2663:(PDF) 2648:(PDF) 2528:A-RAM 2524:Z-RAM 2510:Notes 2279:SONOS 2121:EPROM 2117:Intel 1801:ENIAC 1774:bytes 1726:ENIAC 1640:EPROM 1567:store 1353:ECRAM 1333:CBRAM 1268:DVD+R 1228:CD-RW 1165:D-VHS 1160:VHS-C 1155:S-VHS 1096:(DDS) 1019:ReRAM 1014:FeRAM 1007:NVRAM 993:CBRAM 950:NVRAM 848:(SSD) 817:EPROM 774:Z-RAM 768:T-RAM 700:(CAM) 688:ReRAM 654:RDRAM 634:LPDDR 629:SGRAM 624:SDRAM 619:eDRAM 53:types 4901:YCSB 4807:SDET 4737:Java 4583:SUPS 4492:BTDi 4167:HDMI 4083:SMPS 4071:SSHD 4065:NVMe 4061:SATA 4040:BIOS 3662:link 3648:2018 3622:link 3608:2018 3566:ISBN 3536:2019 3509:2019 3473:IEEE 3469:IEDM 3450:2019 3404:2008 3369:ISSN 3330:2019 3293:ISBN 3262:ISBN 3214:2019 3178:ISBN 3136:2019 3104:2019 3041:2018 3011:2019 2951:2019 2901:2019 2847:ISBN 2798:2019 2760:2019 2711:2019 2671:2019 2592:2019 2561:2022 2526:and 2427:CPUs 2387:out. 2374:Bugs 2342:chip 2338:SRAM 2318:worn 2258:and 2242:and 2005:NMOS 1984:and 1970:CMOS 1868:and 1837:and 1650:are 1636:PROM 1630:and 1626:are 1618:and 1580:and 1563:core 1343:NRAM 1315:WORM 1223:CD-R 977:MRAM 812:PROM 807:MROM 709:VRAM 693:QRAM 676:SRAM 664:GDDR 614:DRAM 510:RAID 160:Data 49:and 5001:ARM 4712:x86 4450:ALU 4219:VGA 4214:DVI 4147:USB 4100:VRM 4057:SSD 4052:HDD 4035:RAM 3971:DVD 3834:GPU 3477:doi 3361:doi 3189:21. 3003:IBM 2974:doi 2920:doi 2246:), 2135:at 2115:of 2028:bit 2009:IBM 1928:IBM 1878:MOS 1789:bit 1776:of 1671:bit 1632:ROM 1586:RAM 1554:or 1544:RAM 1263:DVD 1150:VHS 967:PCM 920:SxS 795:ROM 669:HBM 659:DDR 590:RAM 5087:: 4063:/ 3966:CD 3658:}} 3654:{{ 3639:. 3618:}} 3614:{{ 3585:. 3574:. 3544:^ 3525:. 3497:. 3467:. 3439:. 3394:. 3390:. 3367:. 3359:. 3347:. 3319:. 3301:. 3270:. 3238:41 3236:. 3230:. 3204:. 3186:. 3172:. 3144:^ 3093:. 3075:. 3031:. 3027:. 3001:. 2997:. 2986:^ 2970:12 2968:. 2940:. 2890:. 2877:^ 2841:. 2814:. 2787:. 2768:^ 2749:. 2731:. 2727:. 2694:. 2690:. 2654:. 2650:. 2581:. 2569:^ 2445:. 2397:A 2390:A 2382:A 2301:. 2293:, 2289:, 2285:, 2281:, 2277:, 2273:, 2269:, 2262:. 2254:, 2238:, 2230:, 2091:. 2034:. 2003:. 1856:. 1791:.) 1780:(1 1764:GB 1747:c. 1662:. 1638:, 1634:, 1595:. 1569:. 1213:CD 1130:DV 5065:) 5061:( 5039:) 5023:) 5019:( 5013:) 5009:( 5003:) 4999:( 4989:( 4907:) 4903:( 4735:( 4724:) 4720:( 4714:) 4710:( 4452:) 4448:( 4393:) 4389:( 4283:e 4276:t 4269:v 4067:) 4059:( 3719:e 3712:t 3705:v 3664:) 3650:. 3624:) 3610:. 3538:. 3511:. 3483:. 3479:: 3452:. 3406:. 3375:. 3363:: 3355:: 3349:7 3332:. 3216:. 3138:. 3106:. 3079:. 3043:. 3013:. 2980:. 2976:: 2953:. 2926:. 2922:: 2903:. 2855:. 2824:. 2800:. 2762:. 2735:. 2713:. 2673:. 2633:. 2594:. 2563:. 2530:. 1759:8 1687:N 1559:. 1552:, 1546:, 1519:e 1512:t 1505:v 973:) 969:( 20:)

Index

Memory device

DDR4 SDRAM
Computer memory
computer data storage
Memory cell
Memory coherence
Cache coherence
Memory hierarchy
Memory access pattern
Memory map
Secondary storage
MOS memory
floating-gate
Continuous availability
Areal density (computer storage)
Block (data storage)
Object storage
Direct-attached storage
Network-attached storage
Storage area network
Block-level storage
Single-instance storage
Data
Structured data
Unstructured data
Big data
Metadata
Data compression
Data corruption

Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.

↑