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LEO I Dead

LEO I
KindMachine
Introduced1951
Discontinued1965
StatusDead
ManufacturerJ. Lyons & Co.
ClassMainframe
PlatformMercury delay lines
Sourcewww.leo-computers.org.uk ↗

A British tea-shop company built the world's first business computer — Lyons Electronic Office ran bakery valuations in 1951, years before IBM sold a business machine.

Created by LEO Computers

J. Lyons & Co. — the tea-shop and hotel empire — ran its clerks so efficiently that management sent a team to see ENIAC in 1947. They came back and built LEO (Lyons Electronic Office) from the EDSAC design, running the world's first business application (bakery valuation) in November 1951.

LEO Computers Ltd sold the machines commercially; the LEO III introduced multitasking and microprogramming. Lyons exited computers in 1964, merging into English Electric Leo Marconi.

→ Read the full article on the ALB Wiki

Sources

  1. leo-computers.org.uk/
  2. en.wikipedia.org/wiki/LEO_(computer)