TECHNICAL OVERVIEW OF ATARI 1400XL

Part of the system
Description
Processor 6502C
Clock speed 1.79 MHz (NTSC) 1.77 MHz (PAL)
RAM 64 KB
ROM 16 KB
O.S. version(s) XL O.S.
Cartridge port(s) 1 Adress space : 16 KB
Built-in software Self-Test, Basic Revision B(later models have Basic Revision C)
Controller port(s) 2
Function keys Reset, option, select, start, help,
Parallel Bus Interface Yes
Cosmetics Medium size black and white casing
Coprocessors GTIA (video output, sprites), POKEY (sound, I/O), ANTIC (video, display lists), FREDDY (Memory Manager)
I/O ports RGB, cartridge, Expansion port, Tape, RS232, Joystick
Media One or Two External 5.25" Floppy Disk Units (360 KB each)
Additional Floppy disk, modem, Freddy chip, speech synthesiser chip (SC-01), Basic on cartridge