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.

[10] The device includes a CR2032 lithium coin cell for memory backup when the two AA main batteries run out.

For mass storage, HP 95LX has a single PCMCIA slot which can hold a static RAM card with its own CR2025 back-up coin cell.

[3] The palmtop runs MS-DOS 3.22[3] and has a customized version of Lotus 1-2-3 Release 2.2 built in.

[6]: 72 [11] Other software in read-only memory (ROM) includes a calculator, an appointment calendar, a telecommunications program, and a simple text editor.