INTRODUCTION TO MICROPEOCESSOR
MODEL OF MICROPROCESSOR
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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20
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2 20
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220-1
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220-1
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Detailed explanation-1: -For example, an 8-bit-byte-addressable machine with a 20-bit address bus (e.g. Intel 8086) can address 220 (1, 048, 576) memory locations, or one MiB of memory, while a 32-bit bus (e.g. Intel 80386) addresses 232 (4, 294, 967, 296) locations, or a 4 GiB address space.
Detailed explanation-2: -For example, an 8-bit-byte-addressable machine with a 20-bit address bus (e.g. Intel 8086) can address 220 (1, 048, 576) memory locations, or one MiB of memory, while a 32-bit bus (e.g. Intel 80386) addresses 232 (4, 294, 967, 296) locations, or a 4 GiB address space.
Detailed explanation-3: -In a microcomputer, the addresses of memory locations are binary numbers that identify each memory circuit where a byte is stored. The number of bits that make up an address depends on how many memory locations there are.
Detailed explanation-4: -One memory location stores 1 byte (8 bits). The basic storage unit for memory is 1 byte.