Apparatus with a standby mode, program and control method for an apparatus with a standby mode
When a personal computer system user carries out an OS shutdown, a BIOS does not turn off power, but reboots the system by a software reset to execute a POST, so that the state of the system immediately before starting the launch of the OS after completion of the POST is held in a volatile memory, and the system is shifted to a power saving mode. Subsequently, when the system is booted, the BIOS performs only restoration processing from the power saving mode while omitting the POST execution, and at once launches the OS, thereby shortening the system boot time by omitting the POST execution when the system is booted. Thus, POST processes are performed after the OS shutdown, a state that the POST has been completed after rebooting is held in the volatile memory, and then the system is placed into a state of power saving mode.
1. An apparatus with a standby mode, comprising:
an initialization part performing initialization processing of at least a part of said apparatus;
a standby mode shifting part shifting said apparatus to the standby mode while maintaining a state of said apparatus initialized by said initialization part;
a restoration part restoring said apparatus from the standby mode, according to said standby mode shifting part with said initialized state being maintained;
a boot part for performing boot processing of said apparatus by a power supply being turned on; and
a selection part capable of selectively setting whether the initialization processing according to said initialization part is made when said apparatus is shifted to the standby mode by said standby mode shifting part, or before or at the time when the boot processing is performed by said power supply being turned on.
2. The apparatus with a standby mode as set forth in claim 1 , wherein said initialization part comprises a BIOS, and said initialization processing comprises a POST.
3. The apparatus with a standby mode as set forth in claim 1 , wherein said initialization part and said selection part comprise a BIOS, and said initialization processing comprises a POST.
4. The apparatus with a standby mode as set forth in claim 3 , wherein the selective setting according to said selection part is performed at a time of shutdown processing of an OS.
5. The apparatus with a standby mode as set forth in claim 1 , wherein said initialization part comprises a BIOS, and said initialization processing comprises a POST, and said selection part is part of an OS.
6. A computer readable recording medium storing at least one program for operating a computer system with a standby mode according to a process comprising:
initializing said computer system upon receipt of an instruction to place the computer system into the standby mode;
shifting said computer system to the standby mode while maintaining said initialized state of said computer system;
restoring said computer system from said standby mode with said initialized state thereof being maintained; and
selectively sets one of a first mode in which said initialization processing is performed before said computer system is shifted to said standby mode, and a second mode in which said initialization processing is performed at a time when said computer system is powered on.
7. The medium as set forth in claim 6 , wherein said program comprises a BIOS, and said initialization processing comprises a POST.
8. The medium as set forth in claim 7 , wherein said initialization processing and the shifting of said computer system to said standby mode are performed based on a specified shutdown of an OS.
9. A computer readable recording medium storing at least one program for operating a computer system according to a process comprising:
operating said computer system; and
selectively setting one of a first mode and a second mode, said first mode giving another program an instruction for shifting said computer system to a standby state while performing initialization processing of said computer system at a time of shutdown processing of said operating, said second mode initializing said computer system before booting for said operating of the computer system.
10. The medium as set forth in claim 9 , wherein said instruction for shifting said computer system to the standby state comprises selection of said first mode.
11. A method for controlling an apparatus with a standby mode, comprising:
rebooting said apparatus in response to receipt of an instruction for placing said apparatus into the standby condition,
initializing said apparatus after said rebooting;
shifting said apparatus to the standby mode while maintaining the initialized state thereof; and
restoring said apparatus from said standby mode in response to receipt of an instruction for placing said apparatus into a working mode.