46. Compact disk that can store approximately 650-800 MB of data or 74-80 min of music are

1. 1. zip disks

   
   
   

   2. CD-ROM

   
   
   

   3. video cards

   
   
   

   4. pressing machines

   
   
   

   5. floppy diskettes

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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47. One nibble is equivalent to

1. 1. 2 bits

   
   
   

   2. 4 bits

   
   
   

   3. 8 bits

   
   
   

   4. 32 bits

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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48. What is the temporary storage memory chips that form the computers primary work space ? The contents are lost if power is distrupted.

1. 1. Outputs

   
   
   

   2. Windows

   
   
   

   3. ROM

   
   
   

   4. Hard drive memory

   
   
   

   5. RAM

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: E

   NA

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49. Why RAM is so called ?

1. 1. Because it is read and write memory

   
   
   

   2. Because it is a volatile memory

   
   
   

   3. Because it can be selected directly for storing and retrieving data and instructions of any location of chip

   
   
   

   4. Because it is a non-volatile memory

   
   
   

   5. None of the above

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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50. How many kilobytes make a megabyte ?

1. 1. 128

   
   
   

   2. 1024

   
   
   

   3. 256

   
   
   

   4. 512

   
   
   

   5. 64

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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