Producer: IBM - Category: Personal Computer
Photos: Photo 1 (small),Photo 2 (small),Photo 3 (small),Photo 4 (small)
Laptop, 1986, IBM. The PC Convertible (model 5140) was IBM's first laptop, with a removable LCD screen and an optional thermal printer.
| Year | 1986 |
| Manufacturer | International Business Machines Corporation (IBM) |
| Model | PC Convertible 5140 |
| Processor | Intel 80C88 (16 bit architecture, 8 bit bus) at 4.77 MHz, 20 bit addressing (1 MB) |
| RAM | 256 KB, expandable to 512 KB |
| ROM | 64 KB |
| Display | removable 10 inch LCD; text 80 x 25, graphics 640 x 200 |
| Storage | 2 x 3.5" floppy disk drives (720 KB), optional thermal printer |
| Video interface | for monochrome or colour (CGA) monitor |
| Interfaces | RS232C (DB-9), Centronics (DB-25) |
| Dimensions (closed) | 14.7 x 12.3 x 2.7 inch |
| Weight | 5.5 kg |
| Operating system | DOS 3.20, BASIC interpreter |
| Power supply | 12 V DC |
| Price | $3,500 at launch, later $1,995 |
