IBM PC Convertible
| IBM PC Convertible | |
| Release date | April 2, 1986 | 
|---|---|
| Introductory price | US$2,000 (equivalent to $5,740 in 2024) | 
| 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. | 
| Weight | 13 pounds (5.8 kg) | 
| Predecessor | IBM Portable Personal Computer | 
| Successor | IBM PS/2 L40 SX (IBM PS/2 note) | 
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.
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.