Macintosh 512K
The Macintosh 512K is a personal computer that was designed, manufactured and sold by Apple Computer from September 1984 to April 1986. It is the first update to the original Macintosh 128K. It was virtually identical to the previous Macintosh, differing primarily in the amount of built-in random-access memory. The increased memory turned the Macintosh into a more business-capable computer and gained the ability to run more software. It is the earliest Macintosh model that can be used as an AppleShare server and, with a bridge Mac, communicate with modern devices.
| Also known as | M0001W |
|---|---|
| Manufacturer | Apple Computer |
| Product family | Compact Macintosh |
| Release date | September 10, 1984 |
| Introductory price | US$2,795 (equivalent to $7,870 in 2022) |
| Discontinued | April 14, 1986 |
| Operating system | 1.0, 1.1, 2.0, 2.1, 3.0, 3.2, 3.3, 3.4, 4.0, 4.1 |
| CPU | Motorola 68000 @ 7.8338 MHz (Effectively 6 MHz) |
| Memory | 512 KB RAM (built-in) |
| Display | 9 in (23 cm) monochrome, 512 × 342 |
| Predecessor | Macintosh 128K |
| Successor | Macintosh 512Ke Macintosh Plus |
The Mac 512K originally shipped with Macintosh System 1.1 but was able to run all versions of Mac OS up to System 4.1. It was replaced by the Macintosh 512Ke and the Macintosh Plus. All support for the Mac 512K was discontinued on September 1, 1998.