The RAYDAC (for Raytheon Digital Automatic Computer) was a one-of-a-kind computer built by Raytheon. It was started in 1949 and finished in 1953. It was installed at the Naval Air Missile Test Center at Point Mugu, California. The RAYDAC used 5,200 vacuum tubes and 18,000 crystal diodes. It had 1,152words of memory (36bits per word), using delay-line memory, with an access time of up to 305microseconds. Its addition time was 38microseconds, multiplication time was 240microseconds, and division time was 375microseconds. (These times exclude the memory-access time.)

See also

• List of vacuum-tube computers

External links

• Erwin Tomash photo of General Front View From Right Side of RAYDAC Test Control Board (image)

• Erwin Tomash drawing of RADAC Computer Control Room Showing Main Computer and Operator's Console (image)

References