Apple Macintosh 512ke
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Introduced April 1986
Discontinued September 1987
Release Price $1999

 

System Architecture

   

Memory

 
Microprocessor 68000   Standard on system board 512k
Clock speed 7.8336 MHz   Maximum on system board 512k
Bus type Apple proprietary   Maximum total memory 512k
Data bus width 16 bits   Memory speed and type 150 ns
Address bus width 24 bits   System board memory socket type ???
Interrupt levels N/A   Number of memory module sockets ???
DMA channels N/A   Memory used on system board dynamic

Standard Features

   

Disk Storage

 
ROM size 128k   Internal disk and tape drive bays 1
Optional math coprocessor none   Standard floppy drives 1 - 3.5 inch 800k
Parallel port type     Optional floppy drives: 1 - 3.5 inch 400k or 800k
RS232C serial ports 2-RS-232/RS-422   * 5 1/4 inch 160k no
Mouse ports yes   * 5 1/4 inch 1.2MB no
UART chip used N/A   * 3 1/2 inch 400k or 800k yes
Maximum speed N/A   * 3 1/2 inch 1.44MB no
CMOS real time clock yes   * 3 1/2 inch 2.88MB no
CMOS RAM yes   Hard disk controller included optional scsi external

Video & Graphics

   

Sound

 
Graphics Processor     Sound Interface device  
Screen size - Col x Rows     Sound generation 4 voices
Resolution - Colors/High B&W/512 x 342 pixels   ADSR capable no
Resolution - Colors/Low        
Max colors mono black and white   Programming language  
Sprites or Missiles none   Built in language none
      Built in M L monitor none

Expansion Slots

   

Keyboard Specs.

 
Total adapter slots none   Number of keys 58
Number of 8/16/32 bit slots none   Upper/lower case yes / yes
      Keyboard cable length 4 foot

Physical Specs.

   

Environmental Specs.

 
* Height 13 1/2 inches   Operating voltage @ 60 Hz 105-125 VAC
* Width 9 1/2 inches   Maximum power supplied 60 watts
* Depth 10 7/8 inches   Power supply output - volts  
* Weight 16 lbs 8 ounces   Power supply output - amps