IBM 702 Computer Specifications.pdf

- Carryover and Sign:
- Carryover is made from the highest order position of the original accumulator storage field.
- Sign turns on when a field addressed by an arithmetic instruction lacks plus or minus zoning over the right-hand digit.

- Checks Performed:
- Odd-even redundancy, read-write operations, and longitudinal redundancy on magnetic tape processing are checked.

- System Details (IBM 702):
- Requires 75 Kw, occupies 19,494 cu ft, 2,052 sq ft, weighs 33,000 lbs.
- Air conditioning consists of a 40-Ton and a 15-Ton unit, occupying 3,168 cu ft and 288 sq ft.
- Power service: 300 amps, 208 volts, 3 phase (computer), 105 amps, 440 volts, 3 phase (air conditioner).

- Production and Cost:
- Over 13 IBM 702 systems were produced, with no systems currently in production.
- Successor to the 702 is the IBM 705.
- Rental rates vary by component, with the CPU (Model 702) at $6,900/month and the base purchase price at $358,800.

- Personnel Requirements:
- One to three 8-hour shifts required, depending on the system and manufacturer.
- Engineers, operators, and other personnel vary by system and manufacturer.

- Reliability and Availability:
- U.S. Navy Aviation Supply Office: Approximate reliability of 0.85, based on available time minus machine error, maintenance, and tape trouble time.