IBM JX
 | |
 IBM JX Personal Computer | |
| Also known as | JXPC, IBM 5511 |
|---|---|
| Developer | IBM Japan |
| Manufacturer | Matsushita Electric Industrial |
| Released | October 29, 1984 |
| Discontinued | 1987 |
| Units shipped | 40,000 |
| Media | Cartridge, 3.5 inch floppy disks, Cassette tape |
| PC DOS 2.1, Microsoft Disk BASIC, Advanced BASIC | |
| CPU | Intel 8088 @ 4.77 MHz |
| Display | 160 × 200 and 320 × 200 at 16 colors, 640 × 200 at 4 colors |
| Sound | Texas Instruments SN76489, PC speaker |
| Predecessor | IBM 5550 |
| Successor | IBM Personal System/55 |
| Made in | Japan |
The IBM JX (also mentioned as JXPC or IBM 5511) was a personal computer released in 1984 into the Japanese, Australian and New Zealand markets. Designed in Japan, it was based on the technology of the IBM PCjr. It was targeted in the Australasian market towards the public education sector rather than at consumers, and was sold in three levels: JX (64 KiB), JX2 (128 KiB) and JX3 (256 KiB). Upgrades were available to both 384 KiB and 512 KiB. The JX was the first IBM PC to use 3.5" floppy drives.
IBM Japan expected to sell 200,000 units of JX, but only 40,000 units were produced. The JX was discontinued in 1987, and IBM Japan gave 15,000 units of JX to its employees in honor of the company's 50th anniversary.