IBM PC Convertible
The IBM PC Convertible (model 5140) is a laptop computer made by IBM, first sold in April 1986. The Convertible was IBM's first laptop-style computer, following the luggable IBM Portable, and introduced the 3½-inch floppy disk format to the IBM product line. Like modern laptops, it featured power management and the ability to run from batteries.
IBM PC Convertible | |
| Release date | April 2, 1986 |
|---|---|
| Introductory price | US$2,000 (equivalent to $5,340 in 2022) |
| Discontinued | August 7, 1989 |
| Operating system | IBM PC DOS with custom icon-oriented shell interface |
| CPU | Intel 8088 CPU @ 4.77 MHz |
| Memory | 256 KB of RAM (expandable to 640 KB) |
| Storage | Dual 720 KB 3.5-inch floppy drives |
| Display | Monochrome CGA-compatible LCD |
| Graphics | 80x25 (text), 640x200, and 320x200 |
| Power | Battery: 9.6v/2400mAh (NiCd) Power supply: 15 VDC, 2.7A. |
| Mass | 13 pounds (5.8 kg) |
| Predecessor | IBM Portable Personal Computer |
| Successor | IBM PS/2 L40 SX (IBM PS/2 note) |
It was replaced in 1991 by the IBM PS/2 L40 SX, and in Japan by the IBM Personal System/55note, the predecessor to the ThinkPad.
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