Category: IBM PC

A lot of retrocomputer enthusiasts have a favourite system, to the point of keeping up 40 year old flame wars over which system was “best”.   In spite of the serious, boring nature of the PC/AT and its descendants, those early IBMs have a certain style that Compaq and the Clones never quite matched. Somehow, we […]
No matter what kind of computer or phone you are reading this on, it probably has a graphics system that would have been a powerful computer on its own back in the 1980s. When the IBM PC came out, you had two choices: the CGA card if you wanted color graphics, or the MDA if […]
You often hear that Bill Gates once proclaimed, “640 kB is enough for anyone,” but, apparently, that’s a myth — he never said it. On the other hand, early PCs did have that limit, and, at first, that limit was mostly theoretical. After all, earlier computers often topped out at 64 kB or less, or […]
[GloriousCow] has started working on a series of investigations into the various historical floppy disk copy protection schemes used in the early days of the IBM PC and is here with the first of these results, specifically Formaster’s Copy-Lock. This is the starting sector of track 6. It looks empty, but it’s not quite. The […]