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HP 95LX

Hewlett-Packard 95LX
HP 95LX Pocket Computer.JPG
Like most pocket computers, the HP 95LX owner's manual is larger and heavier than the computer itself.
Also known as Jaguar
Manufacturer Hewlett-Packard
Type Palmtop PC
Release date April 1991; 25 years ago (1991-04)
Introductory price $550
Discontinued January 1, 2003 (2003-01-01)
Units shipped 400,000 (estimated production run)
Operating system Microsoft MS-DOS 3.22
CPU NEC V20 @ 5.37 MHz
Memory 512 KB (F1000A) or 1 MB (F1010A)
Removable storage SRAM card (0.5 MB - 32 MB)
Display 16 × 40 characters LCD screen (4.8 inch × 1.8 inch)
Graphics 128 × 240 pixels (quarter-CGA resolution) monochrome STN, 2 scales
Sound PC speaker (piezo)
Input Thumb keyboard with 80 keys & dedicated numeric keypad
Connectivity RS-232-compatible serial port, infrared port, PCMCIA 1.0 type II (3.3 mm or 5 mm)
Power 2× AA-size removable batteries, 1× CR2032 coin cell backup, optional AC adapter
Dimensions Length 8.5 cm, width 15.9 cm, height 2.6 cm (3.4 inches × 6.3 inches × 1 inch)
Weight 312 g (11 ounces)
Backward
compatibility
Intel 8088
Successor HP 100LX

The HP 95LX Palmtop PC (F1000A, F1010A), also known as project Jaguar, was Hewlett Packard's first MS-DOS-based pocket computer or personal digital assistant, introduced in April 1991 in collaboration with Lotus Development Corporation. It can be seen as successor to a series of larger portable PCs like the HP 110 and HP 110 Plus.

The HP 95LX had an NEC V20 CPU (an Intel 8088 clone running at 5.37 MHz) with an Intel Corporation System on a chip (SoC) device. It cannot be considered completely PC-compatible because of its quarter-CGA (MDA) resolution LCD screen. It ran Microsoft's MS-DOS version 3.22 and had a customized version of Lotus 1-2-3 Release 2.2 built in. Other software in read-only memory (ROM) included a calculator, an appointment calendar, a telecommunications program, and a simple text editor. It also included a CR 2032 lithium coin cell for memory backup when the two AA main batteries run out. For mass storage, the HP 95LX had a single PCMCIA slot which could hold a static RAM card (which had its own CR 2025 back-up coin cell). An RS-232-compatible serial port was provided, as well as an infrared port for printing on compatible models of Hewlett Packard printers. In character mode, the display showed 16 lines of 40 characters and had no backlight. While most IBM compatible PCs work with a hardware code page 437, the HP 95LX's text mode font was hard-wired to code page 850 instead. Lotus 1-2-3 internally used the Lotus International Character Set (LICS), but characters were translated to code page 850 for display and printing purposes.


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