* CPU: Motorola MC 68000 7.83 MHz
* RAM: 512 kb
* ROM: 128 kb
* Text Modes: 40 chars x 32 lines bit-mapped pseudo-character mode
* Graphic Modes: 512 x 342 dots
* Colors: black & white 9" monitor
* Sound: 4 voices, 12 octave sound @ 22 kHz
* I/O Ports: Two serial (RS 232/422) for printer and modem, mouse, external floppy drive, sound out
* Keyboard: Full stroke 59-key
* Built In Media: One 800k 3.5" internal floppy drive
* OS: Macintosh System 1.0
MESS supports the emulation of mac512ke with two floppy drives, "floppydisk1" (flop1) and "floppydisk2" (flop2), for disk images in .dsk, .img and .image.dc format. Keyboard
This system requires full keyboard emulation to work correctly. At startup, full keyboard emulation mode is enabled by default. Whilst in full keyboard emulation mode, some key associated functionality may be disabled (like the ESC key for EXIT). The keyboard emulation mode is toggled using the "Scroll Lock" key (by default).
History and Trivia
Introduced on 14th April 1986, the Macintosh 512ke was essentially a Macintosh 512k with the same 128k ROMs and double-sided 800 KB internal floppy drive as the Mac Plus.
It was sold as a poor man's Macintosh. Also, any existing Macintosh 512k could be upgraded to 512ke. (They could be upgraded to a Mac Plus, too, but this involved changing the motherboard.)
Since this model was discontinued a few months later (in August 1986), it may have just been a way for Apple to get rid of its excess Macintosh 512 motherboard. Or maybe they realized that 512 kb of RAM were not enough to run real-world Macintosh programs.
* Applefritter (Excellent site about all Apple models,clones,prototypes,etc...) -- http://www.applefritter.com/
* Everything for the Mac -- http://www.everythingmac.com/
* Homepage of Gamba -- http://home.earthlink.net/~gamba2/index.html
* Mac512 -- http://www.mac512.com/Welcome/Welcome.html
* Basilisk II -- http://basilisk.cebix.net/
* vMac -- http://www.leb.net/vmac/