Core Memory Block, Air Traffic Control Computer, IBM 9020
This is a core memory unit from an IBM 9020 computer. It stored data in a three-dimensional array of donut-shaped "cores" of magnetic material. Each core stored a binary number one or zero, depending on the direction of its magnetization.
The IBM 9020 was a large, mainframe computer configured for real-time operation and programmed to handle en-route air traffic control functions at about two dozen centers across the continental United States. The 9020 consisted of three standard commercial mainframes, the IBM System/360 Model 50. All three ran in tandem to ensure high reliability. Unlike standard IBM mainframes of the day, the 9020 was programmed to operate in "real time": that is, to compute and generate results as fast as or faster than data were fed into it.
A full system consisted of this computer coupled to air traffic controllers' consoles, with data fed into the system from long-range radar and other ground stations. IBM 9020s were in use at en-route centers from about 1967 through 1997. This system was used at the FAA en-route center in Leesburg, VA.
Transferred from the Federal Aviation Administration
- Country of Origin
- United States of America
- IBM Corporation
- INSTRUMENTS-Computers, General Purpose
- Plastic, Foam, Gold Plating, Steel, Phenolic Resin, Paper, Adhesive, Paint, Nylon, Mylar (Polyester), Aluminum, Acrylic (Plexiglas), Synthetic Fabric
- 3-D: 33 x 20.3 x 20.3cm (13 x 8 x 8 in.)
- Storage (Aluminum pallet and frame with fabric dust cover): 1232.5 × 121.9 × 109.2cm, 140.6kg (40 ft. 5 1/4 in. × 48 in. × 43 in., 310lb.)