mercredi 17 mai 2017

Memories of early computer days

From an off-the-cuff remark in another thread I realised I've been repairing and building computers for over 30 years. Don't know where the time has gone.

One of the first repairs I can remember doing was to a RAM pack for my ZX81, one of these: The connector strip had some broken connections so I had to unsolder the entire connector and resolder it. At the the time I remember being scared I'd muck it up, these were really, really expensive £49.99!

From there passed onto repairing ZX81s for friends, then into doing memory upgrades and fixing the likes of the C64 - indeed my first none-sole trader business offered a repair and upgrade service that made up a large percentage of our profits. I can still remember with some anxiety upgrading the memory of an Atari ST (adding more memory involved removing the soldering on the unused bank of and then soldering in sockets for each new RAM chip and adding either a resistor or a capacitor across each chip*) and somehow completely wrecking the motherboard - cost us dearly to replace.

What's your first memories of delving into the world of personal computers with a hot soldering iron in hand?

*ETA: The wonder of the internet - memory upgrade for an Atari STFM:

via International Skeptics Forum

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