{"id":611,"date":"2022-08-24T07:57:51","date_gmt":"2022-08-24T07:57:51","guid":{"rendered":"http:\/\/lushprojects.com\/blog\/?p=611"},"modified":"2022-08-24T07:57:51","modified_gmt":"2022-08-24T07:57:51","slug":"my-old-bbc-micro","status":"publish","type":"post","link":"http:\/\/lushprojects.com\/blog\/2022\/08\/my-old-bbc-micro\/","title":{"rendered":"My Old BBC Micro"},"content":{"rendered":"

After a trip “down south” I recovered by old BBC from the loft recently.<\/p>\n

It started life as a Model A and was then upgraded to a B, and later a disk interface was added. It also has a big “Sidewise” ROM\/RAM board fitted. (My dad was an IT manager for British Gas and was a big believer in upgradability. He approached buying and owning a home computer with about the same attitude as procuring a mainframe for BG. To be totally fair, that strategy did work very well. We got a huge amount of use out of the Beeb over many years.).<\/p>\n

Anyway, it’s somewhat dirty but the plastics are in good condition. It’s quite an early board with plenty of factory bodges – the most exciting of which is a variable capacitor trimmer on a bit of veroboard randomly above an IC. The original OS was 0.1, but it was upgraded to 1.2 when that came out.<\/p>\n

\u00a0<\/p>\n\n\n

\"\"<\/figure>\n\n\n\n

After replacing the usual suspects in the PSU and reseating the expansion board (a problem I remember back in the day) it came straight back to life. Looking at the bodges it’s surprising it worked at all, never mind after all this time. The Cub is a recent purchase BTW, back in the day we had a Philips portable TV with RGB input on the back.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Quite a few ROMs in it – some even legitimate (ISO Pascal, Wordwise). I don’t remember how Basic got upgraded to Basic 2. The more unusual ROMs uinclude PHX (Phoenix) which was a special terminal emulator used by Cambridge Uni and a few others in the UK. It implemented a page editing protocol. I have an odd personal connection to that as I ended up making the official port of the protocol to the Mac 68k era. SSMP is some other kind of terminal emulator (not the messaging protocol), but I don’t remember what I used that for.<\/p>\n\n\n\n

Disks and disk drive are currently MIA – possibly still at my dads.<\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

After a trip “down south” I recovered by old BBC from the loft recently. It started life as a Model A and was then upgraded to a B, and later a disk interface was added. It also has a big “Sidewise” ROM\/RAM board fitted. (My dad was an IT manager for British Gas and was […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[13],"tags":[],"_links":{"self":[{"href":"http:\/\/lushprojects.com\/blog\/wp-json\/wp\/v2\/posts\/611"}],"collection":[{"href":"http:\/\/lushprojects.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/lushprojects.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/lushprojects.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/lushprojects.com\/blog\/wp-json\/wp\/v2\/comments?post=611"}],"version-history":[{"count":2,"href":"http:\/\/lushprojects.com\/blog\/wp-json\/wp\/v2\/posts\/611\/revisions"}],"predecessor-version":[{"id":615,"href":"http:\/\/lushprojects.com\/blog\/wp-json\/wp\/v2\/posts\/611\/revisions\/615"}],"wp:attachment":[{"href":"http:\/\/lushprojects.com\/blog\/wp-json\/wp\/v2\/media?parent=611"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/lushprojects.com\/blog\/wp-json\/wp\/v2\/categories?post=611"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/lushprojects.com\/blog\/wp-json\/wp\/v2\/tags?post=611"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}