My First Mac

An updated version replaced the Mac 512K and debuted as
the Macintosh 512K enhanced on April 14, 1986.

• 8 MHz Motorola 68000 processor
• 512 KB DRAM
• 16-bit data bus
• 128K of ROM
• 800 KB internal floppy single-sided disk drive
• 800 KB external floppy disk drive (M0131)
• LocalTalk network 3-pin Mini-DIN connection
• Macintosh Keyboard (M0110)

The original 512K could accept Macintosh system software up to version 4.1; System Software 5 was possible if used with the Hard Disk 20; With the OEM 800K Drive and ROM upgrade kit a 512Ke could accept up to System 6.0.8.

The LaserWriter became available for the first time shortly after the 512K's introduction.

The 512K was the earliest Mac capable of supporting Apple's AppleShare built-in file sharing network, when introduced in 1987.



Macintosh 512K and accessories

by Ellen Levy Finch (Elf | Talk) March 24 2004