IBM System/360 Model 40
The IBM System/360 Model 40 was a mid-range member of the IBM System/360 family. It was announced on April 7, 1964, shipped in 1965, and withdrawn on October 7, 1977. [1] [2]
Configuration
A typical, early, basic Model 40 system had the following configuration:[3]
- A Model 40 processor
- IBM 2040 Central Processing Unit
- 128K byte storage, storage protection feature, universal instruction set,
- one multiplexor channel, two selector channels, and interval timer
- An operator console
- IBM 1052 Typewriter- Keyboard (usually assigned to 009 hexadecimal address)
- A unit record input-output machine
- A line printer
- A disk storage
- A tape storage
- IBM 2401 Magnetic Tape Units (180 & 181 for 7-track, and 182 & 182 for 9-track)
If used in a telecommunications environment, the Model 40 also had:
- A telecommunication controller
- IBM 2701 Communication Controller
IBM 1400 series emulation
With the additional Compatibility Feature hardware and Compatibility Support software under DOS/360, the IBM 1401/1440/1460 object programs could be run in the emulation mode, with little or no reprogramming.[4]
Other
The IBM operating system used was usually the realistically sized DOS/360, rather than the larger OS/360.
The IBM System/360 Model 40 was developed and manufactured at IBM's facility in Poughkeepsie, U.S.: manufactured in Mainz, Germany; and manufactured in Fujisawa, Japan.
See also
References
- ↑ IBM System/360 Model 40 (IBM Archives)
- ↑ IBM System/360 model 40 (Flickr from Yahoo!)
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