Knowledge

Real-time clock alarm

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is a feature that can be used to allow a computer to 'wake up' after shut down to execute tasks every day or on a certain day. It can sometimes be found in the 'Power Management' section of a
187: 44: 54:, the real time clock alarm can be set or retrieved using /proc/acpi/alarm or /sys/class/rtc/rtc0/wakealarm. Alternatively the 177: 172: 58:
utility may be used which prevents problems when using local time instead of UTC by automatically processing the
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there are different programs which could be used to 'wake up' a computer from standby or hibernation.
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settings for power management can be used to 'Wake the computer to run this task'.
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functions could also be used to start a computer after it is turned off.
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can be used to wake a system and run a task at a specific time.
51: 32: 28: 159: 160: 188:Unified Extensible Firmware Interface 95:"ACPI Wakeup - MythTV Official Wiki" 13: 14: 199: 101: 87: 1: 80: 7: 178:Operating system technology 130: 10: 204: 173:Computer real-time clocks 21:real time clock alarm 148:Wired for Management 71:Microsoft Windows 195: 124: 123: 121: 119: 105: 99: 98: 91: 203: 202: 198: 197: 196: 194: 193: 192: 158: 157: 133: 128: 127: 117: 115: 113:freedesktop.org 109:"systemd.timer" 107: 106: 102: 93: 92: 88: 83: 17: 16:Computer future 12: 11: 5: 201: 191: 190: 185: 180: 175: 170: 156: 155: 150: 145: 139: 132: 129: 126: 125: 100: 85: 84: 82: 79: 75:Task Scheduler 15: 9: 6: 4: 3: 2: 200: 189: 186: 184: 181: 179: 176: 174: 171: 169: 166: 165: 163: 154: 151: 149: 146: 143: 140: 138: 135: 134: 114: 110: 104: 96: 90: 86: 78: 76: 72: 67: 65: 61: 57: 53: 48: 46: 42: 38: 34: 30: 26: 22: 142:Wake-on-Ring 137:Alert on LAN 116:. Retrieved 112: 103: 89: 68: 60:/etc/adjtime 59: 49: 41:Wake on ring 20: 18: 153:Wake-on-LAN 37:Wake On LAN 25:motherboard 162:Categories 118:27 October 81:References 131:See also 64:systemd 56:rtcwake 35:setup. 168:Alarms 62:file. 43:, and 144:(WOR) 52:Linux 183:BIOS 120:2014 45:IPMI 33:UEFI 29:BIOS 69:In 50:In 27:'s 164:: 111:. 39:, 19:A 122:. 97:. 31:/

Index

motherboard
BIOS
UEFI
Wake On LAN
Wake on ring
IPMI
Linux
rtcwake
systemd
Microsoft Windows
Task Scheduler
"ACPI Wakeup - MythTV Official Wiki"
"systemd.timer"
Alert on LAN
Wake-on-Ring
Wired for Management
Wake-on-LAN
Categories
Alarms
Computer real-time clocks
Operating system technology
BIOS
Unified Extensible Firmware Interface

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