500
these specs are for which computer
Microprocessor
6502 or 65C02 running at 1.023 MHz
8-bit data bus
Memory
64 KB RAM built-in
16 KB ROM built-in
Expandable from 64 KB up to 1 MB RAM or more
Video modes
40 and 80 columns text, white-on-black, with 24 lines¹
Low-Resolution: 40×48 (15 colors)
High-Resolution: 280×192 (6 colors)²
Double-Low-Resolution: 80×48 (15 colors)
Double-High-Resolution: 560×192 (15 colors)²
¹ Text can be mixed with graphic modes, replacing either bottom 8 or 32 lines of graphics with four lines of text, depending on video mode
² effectively 140×192 in color, due to pixel placement restrictions
Audio
Built-in speaker; 1-bit toggling
Built-in cassette recorder interface; 1-bit toggle output, 1-bit zero-crossing input
Expansion
Seven Apple II Bus slots (50-pin card-edge)
Auxiliary slot (60-pin card-edge)
Internal connectors
Game I/O socket (16-pin DIP)
RF modulation output (4-pin Molex)
Numeric keypad (11-pin Molex)
External connectors
NTSC composite video output (RCA connector)
Cassette in/out (two 1⁄8-inch mono phono jacks)
Joystick (DE-9)
What is Apple II