Search results
Results from the WOW.Com Content Network
Backup batteries range from small single cells to retain clock time and date in computers, up to large battery room facilities that power uninterruptible power supply systems for large data centers. Small backup batteries may be primary cells ; rechargeable backup batteries are kept charged by the prime power supply.
Secondary power socket and on-board charging circuit to accept a 6-volt "sealed" lead acid backup battery. Battery-backed real time clock for time and date stamping of files, if the internal RAM card is present. Includes drivers to allow GEOS to use its memory as either a replacement for swap space, or as a regular 'disk' drive.
The computer can be returned to its former state quickly (in response to activity such as the user pressing a key on the keyboard). APM Suspend: Most devices are powered off, but the system state is saved. The computer can be returned to its former state, but takes a relatively long time. (Hibernation is a special form of the APM Suspend state).
It is referred to as non-volatile memory or NVRAM because, after the system loses power, it does retain state by virtue of the CMOS battery. When the battery fails, BIOS settings are reset to their defaults. The battery can also be used to power a real time clock (RTC) and the RTC, NVRAM and battery may be integrated into a single component.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
The run-time for a battery-operated UPS depends on the type and size of batteries and rate of discharge, and the efficiency of the inverter. The total capacity of a lead–acid battery is a function of the rate at which it is discharged, which is described as Peukert's law. Manufacturers supply run-time rating in minutes for packaged UPS systems.
Although the Amstrad PC1512 and PC1640 had to compete against faster AT-type architectures at the time of their release, they were sufficiently powerful to run office software popular in the late 1980s and early 1990s, including WordPerfect 5.1, WordStar, Microsoft Word 4 and 5 for DOS, the spreadsheet Lotus 1-2-3, Matlab, and the database ...
Discover the best free online games at AOL.com - Play board, card, casino, puzzle and many more online games while chatting with others in real-time.