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TechRepublic's Mark Kaelin runs Lotus 1-2-3 on an IBM PC from the 1980s, and revisits the quirks that meant the machine was doomed
The two cartridge bays were a distinctive feature of the PCjr. If anything could be considered junior about this PC, it was the 128KB of standard memory. The cartridges contained ROM chips that would supplement RAM for large applications like Lotus 1-2-3.
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Talkback
I remember this piece of shi... err underperforming bag of nonsense.
All that non-standard connection periphery was a precursor to the "new standard" - PS/2, that similarly fell on its err.. bottom.
IBM continued to try and con the public and exploit its dominant position, The PC Junior was just one example of this attempted manipulation, and was the first of many bloody noses, dealt by the market to the smug face of IBM.
IBM tried to force its dealers (I was one of them) to take pallets of these at risk of losing their dealerships. We lost ours, and made a mint selling Compaqs.
Brian M