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Upgrade ROM for Single and Acorn Double Width I/O Expansion Cards

This product has been discontinued.

Both the Single and Acorn Double Width I/O Expansion Cards for RISC OS based computers provide the 1MHz Bus, User Port and Analogue to Digital Converter interfaces of the original BBC Microcomputer.

The Upgrade ROM for RISC OS 3.1 and later contains the Intelligent Interfaces version of the I/O_Podule Module for Single and Acorn Double Width I/O Expansion Cards.

The Upgrade ROM is supplied with a comprehensive User Guide which includes example programs in BASIC and Assembler.

II74 Upgrade ROM for Single and Acorn Double Width I/O Expansion Cards

Page last updated 8 April 2008


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