COMPUTER SCIENCE AND ENGINEERING
COMPUTER ARCHITECTURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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If a computer has a word length of 64 bits, how many ASCII-encoded characters can be stored in one word?
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2
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4
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8
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1
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Explanation:
Detailed explanation-1: -On modern machines, each of the 128 ASCII characters is the low seven bits of an octet or 8-bit byte; octets are packed into memory words so that (for example) a six-character string only takes up one 64-bit memory word.
Detailed explanation-2: -(i.e. 0-255). Eight bits are called a byte. One byte character sets can contain 256 characters.
Detailed explanation-3: -A byte is eight bits, a word is 2 bytes (16 bits), a doubleword is 4 bytes (32 bits), and a quadword is 8 bytes (64 bits).
Detailed explanation-4: -A decimal number is represented with a group of 8 bytes (64 bits)
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