What is the best BASIC Pocket Computer
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07-08-2020, 12:44 PM
(This post was last modified: 07-08-2020 12:45 PM by Dave Britten.)
Post: #154
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RE: What is the best BASIC Pocket Computer
(07-08-2020 12:16 PM)ZQ8000_dude Wrote:(07-08-2020 12:05 PM)Dave Britten Wrote: The mass-produced ones are most likely just a mask ROM - or possibly a PROM - plus some SRAM. I'm not sure how the EPROM ones were programmed, but I'm guessing it involved inserting them into a Wizard and connecting it to a PC via serial cable, which would be fine for small production runs by an ISV. Oh yup, you're right, that makes more sense. Come to think of it, I doubt the card slot on the Wizard can provide the necessary programming voltage anyway. Also, EPROMs and EEPROMs are both programmed electrically, but EPROMS are erased via UV light, whereas EEPROMs (and by extension, flash) are erased electrically. |
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