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IBMDOS.COM

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970: 33: 934: 945: 377:/* C P / M B A S I C I / O S Y S T E M (B I O S) COPYRIGHT (C) GARY A. KILDALL JUNE, 1975 */ /* B A S I C D I S K O P E R A T I N G S Y S T E M (B D O S) COPYRIGHT (C) GARY A. KILDALL JUNE, 1975 */ 304:
In case no source drive and path is given, SYS will assume the system files to reside on the drive containing the SYS.COM program. If this is a local drive, it will try to locate them in the root of this drive, otherwise it will search for them in the SYS.COM directory itself. /K Keep original
111:(from version 1.10 to 6.22) for the same purpose. DR DOS 3.31 to 3.41 used the equivalent DRBDOS.SYS file instead. (For compatibility purposes with some DOS applications the IBMDOS.COM file name was briefly also used by the IBM version of 267: 406: 1011: 317: 153:
attribute is set to keep the file from being accidentally invoked at the command prompt, which would lead to a crash. This is not necessary for
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also containing a tiny COM-style stub just displaying some version info and exiting gracefully when loaded inappropriately.
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attributes of system files (else set to +RSH). /3 or /5 Name either DRBIOS.SYS/DRBDOS.SYS or IBMBIO.COM/IBMDOS.COM.
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during the boot process, it contains the hardware-independent parts of the operating system, including the embedded
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set. As IBMDOS.COM is a binary image containing executable code rather than a true
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terminology, the kernel component of the operating system is called the
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DR-DOS 7.03 WHATSNEW.TXT - Changes from DR-DOS 7.02 to DR-DOS 7.03
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CP/M 1.1 or 1.2 BIOS and BDOS for Lawrence Livermore Laboratories
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file system specific code is called the FDOS in DRI terminology.
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of the bootable drive/partition (normally C:\) and has the
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and higher, because under these systems the file is a
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Archived from 928: 662: 535: 432: 423: 115:, where it resembled the 224:List of DOS system files 54:is the filename of the 39:(second in the list of 1041:Operating system stubs 980:-related article is a 585:Datapac System Manager 416:Disk operating systems 200:operating system. The 192:). Microsoft has used 48: 35: 149:-style program, the 745:DEC BATCH-11/DOS-11 424:MS-DOS, IBM PC DOS, 349:Kildall, Gary Arlen 91:The file exists in 725:Concurrent DOS V60 720:Concurrent DOS 68K 565:Concurrent CP/M-86 426:compatible systems 186:Concurrent DOS 286 49: 993: 992: 958: 957: 465: 464: 88:to applications. 16:(Redirected from 1048: 1014: 1007: 1000: 978:operating-system 972: 965: 947: 946: 936: 935: 430: 429: 409: 402: 395: 386: 385: 379: 375: 345: 339: 338: 336: 335: 314: 308: 307: 301: 300: 280: 269: 266: 264: 263: 254:. Archived from 247: 166:Digital Research 38: 21: 1056: 1055: 1051: 1050: 1049: 1047: 1046: 1045: 1021: 1020: 1019: 1018: 961: 959: 954: 924: 663:Other platforms 658: 615:NetWare PalmDOS 531: 461: 425: 419: 413: 383: 382: 378: 361:source code of 346: 342: 333: 331: 316: 315: 311: 298: 296: 281: 272: 261: 259: 248: 237: 232: 210: 143:file attributes 36: 28: 23: 22: 15: 12: 11: 5: 1054: 1044: 1043: 1038: 1033: 1017: 1016: 1009: 1002: 994: 991: 990: 973: 956: 955: 953: 952: 941: 929: 926: 925: 923: 922: 917: 912: 907: 902: 897: 892: 887: 882: 877: 872: 867: 862: 857: 852: 847: 842: 837: 832: 827: 822: 817: 812: 807: 802: 797: 792: 787: 782: 777: 772: 767: 762: 757: 752: 747: 742: 737: 732: 727: 722: 717: 712: 707: 702: 697: 692: 687: 682: 677: 672: 666: 664: 660: 659: 657: 652: 647: 642: 637: 632: 627: 622: 617: 612: 607: 602: 597: 592: 587: 582: 577: 572: 570:Concurrent DOS 567: 562: 557: 552: 547: 542: 540: 533: 532: 530: 529: 524: 519: 514: 509: 504: 499: 494: 489: 484: 483: 482: 477: 466: 463: 462: 460: 459: 454: 449: 444: 439: 427: 421: 420: 412: 411: 404: 397: 389: 381: 380: 376: 340: 309: 270: 234: 233: 231: 228: 227: 226: 221: 216: 209: 206: 128:root directory 26: 9: 6: 4: 3: 2: 1053: 1042: 1039: 1037: 1034: 1032: 1029: 1028: 1026: 1015: 1010: 1008: 1003: 1001: 996: 995: 989: 987: 983: 979: 974: 971: 967: 966: 962: 951: 942: 940: 931: 930: 927: 921: 918: 916: 913: 911: 908: 906: 903: 901: 898: 896: 893: 891: 888: 886: 883: 881: 878: 876: 873: 871: 868: 866: 863: 861: 860:Sinclair QDOS 858: 856: 853: 851: 848: 846: 843: 841: 838: 836: 833: 831: 828: 826: 823: 821: 818: 816: 813: 811: 808: 806: 803: 801: 798: 796: 793: 791: 788: 786: 783: 781: 778: 776: 773: 771: 768: 766: 763: 761: 758: 756: 753: 751: 748: 746: 743: 741: 738: 736: 733: 731: 728: 726: 723: 721: 718: 716: 715:Commodore DOS 713: 711: 708: 706: 703: 701: 698: 696: 693: 691: 688: 686: 683: 681: 678: 676: 673: 671: 668: 667: 665: 661: 656: 653: 651: 648: 646: 643: 641: 638: 636: 633: 631: 628: 626: 623: 621: 618: 616: 613: 611: 610:Multiuser DOS 608: 606: 603: 601: 598: 596: 593: 591: 588: 586: 583: 581: 578: 576: 573: 571: 568: 566: 563: 561: 558: 556: 553: 551: 548: 546: 543: 541: 539: 534: 528: 525: 523: 520: 518: 515: 513: 510: 508: 505: 503: 500: 498: 495: 493: 490: 488: 485: 481: 478: 476: 473: 472: 471: 468: 467: 458: 455: 453: 450: 448: 445: 443: 440: 438: 435: 434: 431: 428: 422: 417: 410: 405: 403: 398: 396: 391: 390: 387: 374: 372: 368: 364: 360: 354: 351:(June 1975), 350: 344: 330:on 2019-04-08 329: 325: 324:Caldera, Inc. 321: 320: 313: 306: 294: 290: 286: 279: 277: 275: 268: 258:on 2003-10-04 257: 253: 246: 244: 242: 240: 235: 225: 222: 220: 217: 215: 212: 211: 205: 203: 199: 195: 191: 187: 183: 179: 175: 171: 167: 162: 160: 156: 152: 148: 144: 141: 137: 133: 129: 124: 122: 118: 114: 110: 106: 102: 98: 94: 89: 87: 83: 80: 76: 72: 68: 64: 63:DOS BIOS 60: 57: 53: 46: 42: 34: 30: 19: 986:expanding it 975: 960: 735:Cromemco DOS 690:Apple ProDOS 356: 352: 343: 332:. Retrieved 328:the original 318: 312: 303: 297:. Retrieved 288: 260:. Retrieved 256:the original 180:in 1975 for 178:Gary Kildall 163: 150: 139: 135: 131: 125: 90: 51: 50: 29: 880:SpartaDOS X 155:DR-DOS 7.02 82:file system 1031:DOS kernel 1025:Categories 630:PC-MOS/386 620:Novell DOS 517:SISNE plus 507:Novell DOS 487:IBM PC DOS 447:Comparison 334:2019-04-08 299:2017-10-06 262:2009-03-29 230:References 214:IBMBIO.COM 159:fat binary 117:OS2DOS.COM 101:DR DOS 5.0 93:PC DOS 1.0 67:IBMBIO.COM 52:IBMDOS.COM 45:IBM PC DOS 37:IBMDOS.COM 18:OS2DOS.COM 1036:DOS files 875:SpartaDOS 830:NewDos/80 705:Atari TOS 700:Atari DOS 695:Apple SOS 685:Apple DOS 219:MSDOS.SYS 194:this name 136:read-only 121:Microsoft 109:MSDOS.SYS 41:COM files 939:Category 905:TurboDOS 870:SmartDOS 810:MicroDOS 670:AmigaDOS 655:TurboDOS 650:Towns OS 595:K8918-OS 590:DOS Plus 480:MS-DOS 7 452:Commands 442:Timeline 367:CP/M 1.2 363:CP/M 1.1 293:Archived 208:See also 113:OS/2 1.0 920:Z80-RIO 890:Top-DOS 845:RealDOS 820:MSX-DOS 755:DOS/360 750:DIP DOS 740:CSI-DOS 645:SCP1700 635:REAL/32 625:OpenDOS 605:MP/M-86 575:CP/M-86 550:4690 OS 545:4680 OS 527:FreeDOS 522:PTS-DOS 512:ROM-DOS 198:MSX-DOS 86:DOS API 948:  937:  900:TRSDOS 895:TR-DOS 795:iS-DOS 785:IDEDOS 780:GEMDOS 760:DOS XL 710:BW-DOS 675:AMSDOS 600:FlexOS 555:86-DOS 536:Other 497:DR-DOS 470:MS-DOS 373:(LLL): 190:FlexOS 151:hidden 140:system 138:, and 132:hidden 107:using 105:MS-DOS 59:kernel 976:This 915:Z-DOS 850:SB-80 840:PTDOS 825:MyDOS 790:IMDOS 680:ANDOS 640:SB-86 502:H-DOS 492:DOS/V 457:Games 418:(DOS) 79:FAT32 75:FAT16 71:FAT12 43:) in 982:stub 950:List 910:UDOS 865:RDOS 835:OS/M 815:MP/M 805:MDOS 800:ISIS 775:FLEX 765:Edos 730:CP/M 580:CP/K 560:ADOS 369:for 359:PL/M 188:and 182:CP/M 170:BDOS 99:and 97:7.10 47:1.0. 855:SCP 770:EOS 538:x86 437:API 365:or 202:FAT 164:In 147:COM 123:.) 95:to 65:in 56:DOS 1027:: 355:, 322:. 302:. 291:. 287:. 273:^ 238:^ 134:, 73:, 1013:e 1006:t 999:v 988:. 408:e 401:t 394:v 337:. 265:. 172:( 20:)

Index

OS2DOS.COM

COM files
IBM PC DOS
DOS
kernel
DOS BIOS
IBMBIO.COM
FAT12
FAT16
FAT32
file system
DOS API
PC DOS 1.0
7.10
DR DOS 5.0
MS-DOS
MSDOS.SYS
OS/2 1.0
OS2DOS.COM
Microsoft
root directory
file attributes
COM
DR-DOS 7.02
fat binary
Digital Research
BDOS
Basic Disk Operating System
Gary Kildall

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