4D introduces USB mouse interface for older RISC OS machines

Modern RISC OS systems tend to come equipped with a number of USB ports, one of which is normally used to connect the mouse to the computer. However, this wasn’t always the case – USB was first introduced in the mid-1990s, and the Acorn Archimedes first appeared in 1987; Acorn didn’t have the option of USB, and instead designed the Archimedes, RiscPC, and all the variants, to use a quadrature mouse. The BBC Micro, of course, is an older computer again and in its case, if you had a mouse,…

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