Portfolio

Portfolio

The Atari Portfolio (aka Atari PC Folio) is a IBM PC-compatible palmtop PC, and was released by Atari Corporation in June 1989, making it the world's first palmtop computer.The Portfolio uses an Intel 80C88 CPU running at 4.9152 MHz and ran "DIP Operating System 2.11" (DIP DOS), an operating system mostly compatible to MS-DOS 2.11, but with some DOS 2.xx functionality lacking and some internal data structures more compatible with DOS 3.xx. It had 128 KB of RAM and 256 KB of ROM which contained the OS and built-in applications. The on-board RAM is divided between system memory and local storage (the C: drive). The LCD is monochrome without backlight and had 240×64 pixels or 40 characters × 8 lines.

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