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  2. Backup battery - Wikipedia

    en.wikipedia.org/wiki/Backup_battery

    CR2032 battery used as backup battery on a notebook motherboard. Modern personal computer motherboards have a backup battery to run the real-time clock circuit and retain configuration memory while the system is turned off. [1] This is often called the CMOS battery or BIOS battery.

  3. HP 300LX - Wikipedia

    en.wikipedia.org/wiki/HP_300LX

    Power for the device was provided by 2 AA batteries with a CR2032 backup battery to save user data when the 2 AA batteries ran out. A single mono speaker, ROM door and battery compartment are located on the underside of the device. In the box: HP 300LX; User manual; Serial cable; 3rd party software CD; Handheld PC Explorer software CD

  4. HP 95LX - Wikipedia

    en.wikipedia.org/wiki/HP_95LX

    The HP 95LX Palmtop PC (F1000A, F1010A), also known as project Jaguar, [8] is Hewlett Packard's first DOS-based pocket computer, or personal digital assistant, introduced in April 1991 in collaboration with Lotus Development Corporation.

  5. HP 200LX - Wikipedia

    en.wikipedia.org/wiki/HP_200LX

    Case closed. The HP 200LX Palmtop PC (F1060A, F1061A, F1216A), also known as project Felix, is a personal digital assistant introduced by Hewlett-Packard in August 1994. [1] [2] It was often called a Palmtop PC, and it was notable that it was, with some minor exceptions, a DOS-compatible computer in a palmtop format, complete with a monochrome graphic display, QWERTY keyboard, serial port, and ...

  6. Uninterruptible power supply - Wikipedia

    en.wikipedia.org/wiki/Uninterruptible_power_supply

    If a battery has been completely discharged (e.g. the car lights were left on overnight) and next is given a fast charge for only a few minutes, then during the short charging time it develops only a charge near the interface. The battery voltage may rise to be close to the charger voltage so that the charging current decreases significantly.

  7. HP 110 - Wikipedia

    en.wikipedia.org/wiki/HP_110

    The HP 110 (aka HP Portable and HP 45710A) is an MS-DOS-compatible laptop released in 1984 by Hewlett-Packard. It runs off batteries and uses a Harris 80C86 running at 5.33 MHz with 272 KB of RAM. It has an 80 character by 16 line monochrome ( 480 × 128 pixel ) liquid crystal display , runs MS-DOS 2.11 in ROM , and has the application programs ...