Interdata Simulator Configuration

Interdata was founded in the mid 1960's. It produced a family of 16b minicomputers loosely modeled on the IBM 360 architecture. Microprogramming allowed a steady increase in the functionality of successive models.

Interdata 3
Interdata 4 (autoload, floating point)
Interdata 5 (list processing, microcoded automatic I/O channel)
Interdata 70, 74, 80
Interdata 6/16, 7/16
Interdata 8/16, 8/16e (double precision floating point, extended memory)

In the early 1970's, Interdata was purchased by Perkin-Elmer. In 1974, it introduced one of the first 32b minicomputers, the 7/32. Several generations of 32b systems followed:

Interdata 7/32
Interdata 8/32
Perkin-Elmer 3205, 3210, 3220
Perkin-Elmer 3250

Interdata was spun out of Perkin-Elmer as Concurrent Computer Corporation.

Photographs:

Interdata 4 (courtesy of Carl Friend)
Interdata 70 (courtesy of Tony Farrell)
Interdata 70 front panel detail (courtesy of Tony Farrell)

Option	Description	Capacity
16b CPU and memory	Interdata 3, 4, 7/16, 8/16, 8/16e	8KB-64KB (256KB on 8/16e)
16 options	single precision floating point
32b CPU and memory	Interdata 7/32, 8/32	64KB-1024KB
32b options	double precision floating point
DMA	Selector channels	1-4
Console	KSR-33 Teletype
	PASLA-based terminal
Paper tape	reader and punch
Clocks	line time clock
	precision real-time clock
Line printer	line printer
Terminal multiplexor	PASLA-based terminal multiplexor	32 lines
Disk	floppy disk	256KB
	cartridge disk	2.5MB/10MB
	mass storage module controller	13.5MB - 268MB
Magnetic tape	9 track magnetic tape

Updated 08-Aug-2020 by Bob Supnik (simh AT groups DOT io - anti-spam encoded)