1000BiT Homepage
WHERE OLD COMPUTERS ARE WELCOME





× 1000BiT Logo

× Logo

2200 Type 2

Datapoint Corp. (Computer Terminal Corporation) (USA)

Previous: 2200 Type 1 Next: 3300
Visits: 1
Name 2200 Type 2 Datapoint Corp. (Computer Terminal Corporation) 
Manufacturer Datapoint Corp. (Computer Terminal Corporation) (USA) Type
Production start (mm-yyyy) 1974 Production end (mm-yyyy) -
RAM 4K-8K-12K-16K RAM (1-4 memory boards, 4K each). ROM
CPU Custom Chip - 1.2 Mhz
Operating System Datapoint CTOS (Cassette Tape Operating System), Datapoint DOS 1.0-1.2, and later ran DOS.A, DOS.B, and/or DOS.C
Text (Cols x Rows) 80 x 12
Graphics None
Sound Beeper
Storage memory Tape 150Kb per side, 350 cps x 2
Serial port RS-232 Parallel port
Others port 50-pin I/O bus
Original price   Currency original price
Units sold
Note The Intel 8008 was originally developed by Intel as a custom chip for Datapoint (Intel didn't believe there really was a significant market for a general-purpose microcomputer-on-a-chip! ... they wanted Datapoint's memory business!), and implements (almost) exactly the Datapoint 2200 instruction set. The reason Intel to this day uses LSB/MSB byte order is because the Type 1 2200 used a serial shift register memory, and that allowed propagating carries from LSB to MSB without requiring the memory recirculate around to the previous byte.

It's also notable that the 2200 (and 5500 and 6600) did not use a raster scan CRT display, but instead Datapoint's patented "diddle scan" technique which permitted (in the earlier machines) using a serial shift register memory for the CRT refresh memory.
 
Configurations A 16K Type 2 2200 processor in 1972-1973 sold for a little over $14,000 
User webmaster

If you want to leave a comment, please log in.

At the moment no comments, do you want to write the first?

Are there some errors? Do you have other info? .



× 1000BiT Logo

Leave your comment or tell us something about this computer (2000 char. max.)

Comment

Secure Code: