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 serial ports in this system do not support handshaking or synchronous modems. Notes: Screen size is 512x342.

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According to Andy Hertzfeld, the Macintosh used for the introduction demo on January 24, 1984, was a prototype with 512k RAM, even though the first model offered for sale implemented just 128k of non-expandable memory.

Sep 10, 2015 · The Apple Macintosh 512k features an 8 MHz 68000 processor, 512k of RAM, and a 400k disk drive in a beige all-in-one case with a 9" monochrome display.

The Macintosh 512K was the first update to the original Macintosh 128K. It was virtually identical to the previous Mac, differing primarily in the amount of built-in memory, which was quadrupled from the original. This large increase earned it the nickname Fat Mac.

The Macintosh 512K enhanced (512Ke) was introduced in April 1986 as a cheaper alternative to the top-of-the-line Macintosh Plus, which had debuted three months previously. [2] It is the same as the Macintosh 512K but with the 800K disk drive …

Apr 13, 2019 · OA-D34V was the oldest original drive installed in 512K and there were also upgraded versions called OA-D34V-22, which needed the Mac’s ROM to be in revision B. The drive loading mechanism gets stuck with time due to the original lubricants getting thick.

512k

Following the release of the original Macintosh in 1984, Apple released the Macintosh 512K in 1985. The main difference between the two was the increase in RAM to 512 kB. The original Macintosh...