Current Projects

EDSAC milestone passed

A major milestone in the reconstruction of EDSAC has been passed – some of the sub-systems of the computer have run continuously for one million cycles over the course of 20 minutes.

Making Everything Count

The latest EDSAC video about integrating different parts of the computer. Progress up to January 2018 in the challenge of reconstructing the 1949/51 EDSAC computer.

EDSAC - Reflecting on a Vision

An update video on the reconstruction EDSAC, the early computer that transformed university research and led to the world's first business computer. Evocative footage from 1940s and of the action today.

EDSAC arithmetic unit on the move

Last month, one quarter of the reconstructed EDSAC - the arithmetic unit - was moved from a home workshop in Cambridge to be integrated with the main part of the machine at TNMOC.

Obeying Orders

Chris Burton introduces a video update on the latest stage of the EDSAC reconstruction: integrating the sub units and getting to grips with commissioning the whole system.

Searching for Lost Systems

The BCL Molecular Computer was first introduced in 1971 and was sold and used in various forms until the 1990s. But does one still exist today? Who can claim to be the last user?

Computer memory EDSAC style - delay lines

Peter Linnington discusses the options for today's reconstruction of EDSAC. Mercury or something else? The reconstruction of the first computer to provide a university computing service moves forward.

Commissioning EDSAC

Technical discussions of the latest stages in commissioning the reconstruction of EDSAC, the 1949 scientific computer, that is gradually being brought to life in the First Generation Gallery at TNMOC.

Two new EDSAC videos

Two new video updates by David Allen show the progress with EDSAC. The machine is coming together as various components are integrated and tested and Chris Burton gives a VDU screen masterclass.

Remembering EDSAC

More of the inside story of the original EDSAC was revealed this week when Mrs Jean Renwick, wife of the late Bill Renwick, EDSAC’s chief engineer, came to visit. A long-held suspicion was confirmed.

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