Grundy NewBrain AD (Transparent Case)
This model is one of only six clear NewBrain Machines to exist, it was used at trade shows to show off the interior features.
The Grundy NewBrain was a microcomputer sold in the early 1980s by Grundy Business Systems Ltd of Teddington and Cambridge, England.
The NewBrain project was started in 1978 when Sinclair Radionics began design work with Mike Wakefield as the designer and Basil Smith as the software engineer. This project was intended to provide competition for Apple and hardly fitted in with Sinclair's focus on inexpensive consumer-oriented products. When it became obvious to Sinclair that the NewBrain could not be made for the sub-£100 price he envisaged his thoughts turned to the ZX80 that was to be developed by his other company, Science of Cambridge Ltd.
The NewBrain project was moved to Newbury Laboratories by the National Enterprise Board (NEB), the owner of both Sinclair Radionics and Newbury Labs, following the closure of Sinclair Radionics. In 1980 Newbury announced the imminent release of three NewBrain models, including a battery-powered portable computer.
Two main models were released. The model 'A' had display to either a TV or a monitor. The model 'AD' also included a one-line, 16-character, vacuum fluorescent (VF) display on the unit which permitted operation with or without a TV screen or monitor - the VF display responded to the cursor keys and scrolled around the screen display area. One additional model was released, but this was a custom version for a pharmaceutical chain, with no screen display - only the VF display - and was never generally discussed.
Price: Model AD 229.00 GBP,
Timeline: Released: 1982
CPU type: Zilog Z80A s
CPU clock rate: 4 MHz
ROM Size: 24 KB
RAM Size: 32 KB
Maximum RAM Size: 2 MB
Number of keys: 62
Keyboard and one-line VF display chip: COP420 MCU
Graphics modes: 256x256, 320x256, 512x256, 640x256x2
Text modes: 32x25, 32x30, 40x25, 40x30, 64x25, 64x30, 80x25x2, 80x30x2
Total number of colours: 2
I/O Ports: 2x Tape recorder (1,200 Baud), Composite video, Expansion, 2x RS-232 (to 19,000 Baud), UHF TV output
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This exhibit has a reference ID of CH49541. Please quote this reference ID in any communication with the Centre for Computing History.
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