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X86 Computer Bus Subsystems IBM PC/XT Architecture ('82, '83)

X86 Computer Bus Subsystems IBM PC/XT Architecture ('82, '83)

X86 Computer Bus Subsystems IBM PC/XT Architecture ('82, '83)

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ISA (8-bit Version)<br />

(Typical 4.77 MHz <strong>Bus</strong> – <strong>IBM</strong> <strong>PC</strong>, <strong>IBM</strong> <strong>XT</strong>)<br />

<strong>IBM</strong> AT <strong>Architecture</strong> (’84)<br />

(AT is “advanced technology” – 6 MHz)<br />

ISA “Standard” was Modified to 16-bit <strong>Bus</strong><br />

2

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