Equipment
The Central Computer System of the AN/FSQ-7 had two computers for redundancy each with Arithmetic, Core Memory, Instruction Control, Maintenance Control, Selection & IO Control, and Program elements. The Q7 had input/output devices such as:
- IBM 723 card punch and IBM 713 punched card reader
- IBM 718 line printer (64 print positions)
- drum auxiliary memory (50 "fields" of 2048 words each) and IBM 728 magnetic tape drives (32-bit words)
- Crosstelling Input (XTL) from other AN/FSQ sites
- Display and Warning Light System with dozens of consoles in various rooms having Situation Display Tubes, Digital Display Tubes, and controls (e.g., push buttons and light gun) including:
- Duplex Maintenance Console (two), each DMC operated one of the Central Computer Systems and allowed diagnostics (a speaker was available)
- Tracker Initiator Consoles for designating a "blip" (radar return) to be tracked ("assign a track number and to relay speed, direction, and altitude")
- Command Post Digital Display Desk
- Senior Director's keyed console with the Bomarc fire button
- LRI Monitor Console for monitoring Long Range Radar data
- Large Board Projection Equipment
Punched card data was transferred to and from the core memory as binary images. Only the right 64 columns were transferred, with each row containing two 32-bit words. (The left columns could be punched using a special instruction.) Data was transferred to the line printer as a card image as well.
Read more about this topic: IBM AN/FSQ-7 Combat Direction Central
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