Computer Information Storage

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Questions and Answers

What is the fundamental unit of a modern computer?

  • Word
  • Bit (correct)
  • Nibble
  • Byte

What is the total number of possible values that can be stored in a byte?

  • 256 (28) (correct)
  • 16 (24)
  • 512 (29)
  • 1024 (210)

What is the natural size of the execution environment called?

  • Word (correct)
  • Byte
  • Nibble
  • Bit

How many bits are in a nibble?

<p>4 (D)</p>
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What is the total number of bits in a byte?

<p>8 (B)</p>
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What is the highest decimal value that can be stored in a byte?

<p>255 (C)</p>
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What is the binary representation of 'on' in a bit?

<p>1 (A)</p>
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What is the fundamental addressable unit of RAM?

<p>Byte (D)</p>
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How many bytes are in a word?

<p>It depends on the CPU (A)</p>
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What is the purpose of the numbering systems in the context of computer information?

<p>To interpret information stored in RAM (D)</p>
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What is the size of a word on a 16-bit CPU?

<p>2 bytes (C)</p>
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On an Itanium 2 CPU, how many bits are in a general register?

<p>64 bits (C)</p>
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How many bits of information does each hexadecimal digit hold?

<p>4 bits (C)</p>
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What is the decimal value of the hexadecimal number 0x5C?

<p>92 (C)</p>
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What is the purpose of the 0x prefix in hexadecimal notation?

<p>To indicate a hexadecimal value (B)</p>
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In a memory model, how are actual physical memory locations organized?

<p>As a linear sequence (B)</p>
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What is the maximum address in a 4 Gigabytes of RAM?

<p>4,294,967,295 (D)</p>
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What is the purpose of the permission system in certain architectures?

<p>To trap errors while a program is executing (A)</p>
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What is the term for an error that occurs when a program attempts to access the wrong segment?

<p>Segmentation fault (B)</p>
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What is the limitation of the maximum size of the memory that a CPU can access?

<p>It depends on the size of its address registers (B)</p>
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