← Back to context

Comment by johnklos

13 days ago

The title is incorrect, because b&w Macs have 512×342 resolution, not 512x324.

It wouldn't've been too crazy had Apple went with 64K x 4 chips, so they'd've just needed four of them to get 128 KB at a full 16 bits wide.

512x342 was 16.7% of 128 KB of memory, as opposed to 18.75% with 512x384. Not much of a difference. But having square pixels is nice.

It looks like it's just the HN submitted title which is wrong (currently "Why the Original Macintosh Had a Screen Resolution of 512×324"). The article's title is "Why the Original Macintosh Had a Screen Resolution of 512×342", and "324" doesn't appear anywhere on the page.

> wouldn't've

Really, John? You really had to make me parse that word?

Worth adding? The (almost [1]) omni-present menu bar ate 20 pixels of vertical space as well — so you could say the application had 322 of useable rows.

[1] To be sure, many games hide the menu bar.