CD-ROM block sizes were 2048 bytes (2k), so its not entirely unreasonable to design what we now consider low-memory devices around the technology, nor is it a r

CD-ROM block sizes were 2048 bytes (2k), so its not entirely unreasonable to design what we now consider low-memory devices around the technology, nor is it a requirement that huge-memory systems be tied to CD-ROM drives... 128k is enough for a lot of things.