On 6502-based systems the available memory was often less than 64 KiB, the maximum addressable by the processor directly. Still, you could squeeze a lot into th

On 6502-based systems the available memory was often less than 64 KiB, the maximum addressable by the processor directly. Still, you could squeeze a lot into that small amount of you were clever. For example, Steve Wozniak wrote in BYTE magazine about computing e to over 100K places on an Apple 2: > I first calculated e to 47 K bytes of precision in January 1978. The program ran for 4.5 days, and the binary result was saved on cassette tape. Because I had no way of detecting lost-bit errors on the Apple (16 K-byte dynamic memory circuits were new items back then), a second result, matching the first, was required. Only then would I have enough confidence in the binary result to print it in decimal. Before I could rerun the 4.5 day program successfully, other projects at Apple, principally the floppy-disk controller, forced me to deposit the project in the bottom drawer. This article, already begun, was postponed along with it. Two years later, in March 1980, I pulled the e project out of the drawer and reran it, obtaining the same results. As usual (for some of us), writing the magazine article consumed more time than that spent meeting the technical challenges. See page 392 of https://archive.org/details/byte-magazine-1981-06 https://archive.org/details/byte-magazine-1981-06.