Macintosh 512K
![](./images/models/128k.jpg)
Essentials
Family: Classic Macs
Codename: Fat Mac
Gestalt ID: 2
Minimum OS: System 1.1/Finder 1.1g
Maximum OS: System 4.1/Finder 5.5
Introduced: September 1984
Terminated: April 1986
Processor
CPU: Motorola MC68000
CPU Speed: 8 MHz
FPU: none
Bus Speed: 8 MHz
Register Width: 32-bit
Data Bus Width: 16-bit
Address Bus Width: 32-bit
ROM: 64 kB
Onboard RAM: 512 kB
Maximum RAM: 512 kB
Video
Monitor: 9" built-in
Max Resolution: 1 bit 512x342
Storage
Floppy Drive: 3.5" 400 kB
Input/Output
Floppy: DB-19
Joystick/Mouse: DE-9
Serial: 2 DE-9
Audio Out: 8-bit mono mini
Speaker: mono 8 bit
Miscellaneous
Power: 60 Watts
Dimensions: 13.6" H x 9.6" W x 10.9" D
Weight: 16.5 lbs.
Introduced in September of 1984, The Mac 512K was a Mac 128K with 384 kB more RAM. It sold for $3,195, and was replaced in April 1986 by the 512Ke. Thanks to Eric Rasmussen For OS info.
Picture Credits:
Old Computers