3 ms·
Er, when? Apple II was sort of the first big successful home computer, and it had DRAM (The CPU and the display accessed the ram on alternate cycles, and Woz pl
by Tuna-Fish 4y ago
Er, when? Apple II was sort of the first big successful home computer, and it had DRAM (The CPU and the display accessed the ram on alternate cycles, and Woz placed the display buffers so that most of the refresh was "free").
As far as I can tell, all the actually widespread successful computers after that have used DRAM too.
- shadowofneptune 4y agoIt's earlier than that, dating to the time of the Altair clones. Refresh hardware didn't come with those machines so adding it yourself complicated the memory board.
- tyingq 4y agoYes, before the widespread successful bit, almost by definition, since SRAM was expensive.
- Someone 4y agohttps://en.wikipedia.org/wiki/Static_random-access_memory#In_computers https://en.wikipedia.org/wiki/Static_random-access_memory#In...: “SRAM was used for the main memory of most early personal computers such as the ZX80, TRS-80 Model 100 and Commodore VIC-20.” It wouldn’t call it “widespread successful”, but he Macintosh Portable also had SRAM (https://en.wikipedia.org/wiki/Macintosh_Portable https://en.wikipedia.org/wiki/Macintosh_Portable)