ScuzzBlog: Diaries April 2018 Entry 28th April 2018: Post: 1 BBC MICRO : Part 1 - Master System Heavy bit of kit this and quite big when assembled. Uses the CUB from MicroVitec and the Akhter MD802DM double floppy drive. Incredibly the whole package, that is computer, drives and the monitor came ready assembled in a single box all the way from Scotland. Bewilders me how it got here literally in one piece. The Master System is an enhanced version of the Model B. Last year I spent some time replacing the battery in this computer as the system had fallen over. I had great help from the BBC Acorn forum to which I owe a debt of gratitude. When using the computer it is useful to remember that there is BASIC and then there is MOS. To act on MOS commands such as COPY and FORMAT and selecting DRIVE you add the asterix to your command so COPY say is *COPY 0 3 FILE to copy a file from DRIVE 0 to DRIVE 3. But to SAVE and RUN and LIST you enter as a BASIC without the Asterix. The unit has two drives but with the choice of 40 and 80 TRKS this gives the choice of four drives. And so to select an active drive you simply type in *DRIVE 1 say and then a *CAT command will give the contents of that drive. To FORMAT you start by typing in *FORM 80 or *FORM 40 and then the computer asks which DRIVE you want to FORMAT. Easy really. BBC MASTER SERIES manufactured by Acorn Computers in the UK Originally produced in 1986 though I suspect this machine is 1988 Uses the BBC BASIC IV with the OS as MOS Full stroke 93 keys keyboard and numeric The CPU is a 65C102 running at 2MHz The RAM on this is 128KB with the ROM expandable at 128KB etc etc This is the battery replacement from last year.... The replacement battery arrived for the BBC Master It really is wonderful that folk still make the kit The inside of the BBC Master The original battery pack removed

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Last updated 29/04/2018

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scuzzscink 2018