This object is part of a collection relating to the history and development of calculating devices assembled by Assoc Professor Allan Bromley of Sydney University, comprising mathematical instruments, slide-rules, mechanical and electronic calculators, electronic analogue computers, computer components, kit computers, education computers, and associated ephemera.

Allan Bromley was a lecturer and researcher at the University of Sydney Basser Department of Computer Science from 1978 until his untimely death in August 2002. He specialised in Computer Architecture, Computer Logic and in particular the History of Computing. He was regarded as the world authority on Charles Babbage's Calculating Engines (instigating the building of the Difference Engine No.2 at the Science Museum London) and the Antikythera Mechanism and had extensive knowledge of calculators, analogue computers, logic, stereopsis, totalisators, clocks and time keeping and mechanical engineering.

developed in the Basser Department of Computer Science of the University of Sydney.

Developed using TTL integrated circuit technology in the Basser Department of Computer Science of the University of Sydney by Arthur Sale and Ron Cullen for teaching logic in the Computer Archtecture Labs (c.1971). After 1979 Bromley added the capacity to build a simple CPU using 2901 bit-slice devices.

See Allan Bromley "A Logic MiniTrainer" photocopied typescript notes on the use of the logic mini trainer no.3

Logic ini Trainer, (3 units), metal / plasticmade by the Basser Department of Computer Science, University of Sydney, New South Wales, Australia, c. 1971

The Mini Logic Trainer was developed in the Basser Department of Computer Science originally by Arthur Sale with later developments by Allan Bromley.

There are 3 copies of the Logic MiniTrainer here. Nos.3 and 4 are identical single rack panel versions, while No.1 is a dual panel version made up of a pair of the same panels as on the single panel versions. The panels are mounted in blue hammer finish metal 19-inch rack frames with, in Nos.3 and 4, the actual logic panel mounted at a sloped angle to aid access.

Each panel consists in a set of TTL or CMOS logic modules implemented as printed circuit boards having connector sockets, switches, LEDs and a clock speed potentiometer on them. Each board also has a logic diagram of the implemented circuit screen printed onto its surface. Logic circuits are made up by connecting patch leads between modules.

There is a cardboard box of spare patch leads with the set.

Made: 1966 - 1976

BDCS logo | Basser Logic MiniTrainer No. 1
BDCS logo | Basser Logic MiniTrainer No. 3
BDCS logo | Basser Logic MiniTrainer No. 4

2010/1/300

1966 - 1976

130 mm

480 mm

160 mm