Apple II character set

Apple II text mode uses the 7-bit ASCII (us-ascii) character set. The high-bit is set to display in normal mode on the 40x24 text screen.

Apple II / Apple II plus
The original Signetics 2513 character generator chip has 64 glyphs for upper case, numbers, symbols, and punctuation characters. Each 5x7 pixel bitmap matrix is displayed in a 7x8 character cell on the text screen. The 64 characters can be displayed in INVERSE in the range $00 to $3F, FLASHing in the range $40 to $7F, and NORMAL mode in the range $80 to $FF. Normal mode characters are repeated in the $80 to $FF range.



To display lowercase letters, applications can run in the graphics modes and use custom fonts, rather than running in text mode using the font in ROM.

Apple IIGS
Two characters in the Apple II MouseText character set was updated for the GS. The characters unique to MouseText are encoded in Unicode's Symbols for Legacy Computing block.