IBM 1130 Computing System

The IBM 1130 Computing System was introduced in 1965. It was IBM's least-expensive computer to date, and was aimed at price-sensitive, computing-intensive technical markets like education and engineering. It succeeded the IBM 1620 in that market segment. The IBM 1800 was a process control variant of the 1130 with two extra instructions (CMP and DCM) and extra I/O capabilities. The IBM 1500 instructional system was introduced by IBM on March 31, 1966 and was based around either an IBM 1130 or an IBM 1800 computer, it supported up to 32 student work stations each with a variety of audiovisual capabilities.