Macintosh 512ke
Macintosh 512ke



Setname:  mac512ke   
Year: 1986
Manufacturer: Apple Computer
Status: good  works
Type: Buisness Computer / Terminal
Parent: Macintosh Plus
Emulation info
Overall emulation:  good   
Color emulation:  good  
Sound emulation:  good  
Graphics emulation:  good  
Savestates:  unsupported   

Tech info
M68000 ("maincpu")cpu 7833600 Hz
I8021 ("mackbd:mackbd")cpu 3000000 Hz
Speaker ("mono")audio
Mac Audio Custom ("custom")audio
Screen ("screen")raster horizontal 512 x 342 @ 60.150000
Media devices
floppydisk ("floppy0") floppydisk1 flop1 dsk, img, image, dc, dc42, fdi, td0, imd, cqm, d77, d88, 1dd
floppydisk ("floppy1") floppydisk2 flop2 dsk, img, image, dc, dc42, fdi, td0, imd, cqm, d77, d88, 1dd
RAM options
512K 524288

Romset info
ROM NameSizeCRC32SHA1Dump StateBIOS option
macplus.rom131072 b2102e8e7d2f808a045aa3a1b242764f0e2c7d13e288bf1fgood


* 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.


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...) --
* Everything for the Mac --
* Homepage of Gamba --
* Mac512 --

Other Emulators

* Basilisk II --
* vMac --

Edit the History info for this game.


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