Gemini Guidance Computer
The Gemini Guidance Computer (sometimes Gemini Spacecraft On-Board Computer (OBC)) was a digital, serial computer designed for Project Gemini, America's second human spaceflight project. The computer, which facilitated the control of mission maneuvers, was designed by the IBM Federal Systems Division.
Gemini Guidance Computer in National Air and Space Museum | |
| Invented by | IBM Federal Systems Division |
|---|---|
| Manufacturer | IBM Federal Systems Division |
| Introduced | 1965 |
| Discontinued | 1966 |
| Type | Avionics Guidance Computer |
| Processor | Discrete Components |
| Frequency | 7.143 kilohertz clock |
| Memory | 39-bit words memory, each composed of three 13-bit syllables, 4096 words of memory, in a ferrite core array. |
| Ports | Modular Display Keyboard (MDK), Modular Display Readout (MDR), Attitude Control and Maneuver Electronics (ACME), Inertial Measurement Unit (IMU), Horizon Sensors, Time Reference System (TRS) |
| Weight | 58.98 pounds (26.75 kg) |
| Dimensions | 18.9"(H)×14.5"(W)×12.75"(D) |
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