• 1959

Hardware Description

Pegasus was an early thermionic valve (vacuum tube) computer built by Ferranti, Ltd of Great Britain. The Pegasus 1 was first delivered in 1956 and the Pegasus 2 was delivered in 1959. Ferranti sold twenty-six copies of the Pegasus 1 and twelve copies of the Pegasus 2, making it Ferranti's most popular valve (vacuum tube) computer.