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== Specifications == The 65XEM shared the standard 65XE architecture with the addition of the AMY chip: * ''Processor:'' MOS Technology 6502C at 1.79 MHz (NTSC) / 1.77 MHz (PAL) * ''RAM:'' 64 KB * ''ROM:'' 24 KB (16 KB OS, 8 KB Atari BASIC Revision C) * ''Graphics:'' ANTIC, GTIA โ 16 graphics modes, maximum 320ร192 pixels * ''Sound:'' AMY chip (8 voices, 64 oscillators, 11 octaves) plus POKEY (4 voices, retained for backward compatibility and I/O) * ''Co-processors:'' ANTIC, GTIA, POKEY, FREDDIE (memory manager) * ''I/O:'' Composite video output, cartridge port, expansion port, SIO peripheral port, 2 joystick ports * ''Keyboard:'' Full-stroke, 57 keys, 5 function keys (Help, Start, Select, Option, Reset) * ''Power:'' External power supply unit (1A, 5V DC)
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