RetroClinic MultiOS Upgrade Kit

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The MultiOS system allows the user to switch your BBC Master 128 operating system between the original 3.20, 3.50 or Model B OS1.20 as well as the OS 2.00 from the BBC B+.

This complete upgrade package includes the MultiOS board and rotary switch.

Date : 1st December 2019

Manufacturer : RetroClinic

Physical Description : MultiOS Board, Rotary Switch, Instructions

This exhibit has a reference ID of CH56479. Please quote this reference ID in any communication with the Centre for Computing History.

Scan of Document: RetroClinic MultiOS Upgrade Kit

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