Its been always like that. 1982 Victor 9000 / Sirius 1 designed by Chuck Peddle of Commodore/MOS 6502 fame had floppy capacity extended from standard IBM PC 18

Its been always like that. 1982 Victor 9000 / Sirius 1 designed by Chuck Peddle of Commodore/MOS 6502 fame had floppy capacity extended from standard IBM PC 180KB all the way up to 600KB per side. 1.2MB floppy in 1982 using same magnetic medium! How? Software controlled drive with 6502 doing GCR combined with Zoned Constant Linear Velocity and Zone bit recording. There were still hard drives being manufactured not using ZBR 8 years later (Seagate ST-157A)! It also did 25x80 text using 10x16 font or 800x400 bitmap graphics at 76Hz. https://en.wikipedia.org/wiki/Sirius_Systems_Technology https://en.wikipedia.org/wiki/Sirius_Systems_Technology http://oldcomputers.net/victor9000.html http://oldcomputers.net/victor9000.html There was also an IBM PC 8088 clone in ~1984 with "dedicated Video DMA" implemented by Intel MCS-48 microcontroller (8042/8048, same chip as keyboard controllers at the time), sadly I cant remember the name and google fails me :( I do remember nobody used it for anything and the only coding example I could find at the time was a singular YT video where someone reverse engineered manufacturer demo and reused it for its own sprite engine.