161. 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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162. 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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163. The most frequently used instructions of a computer program are likely to be fetched from

1. 1. the hard disk

   
   
   

   2. cache memory

   
   
   

   3. RAM

   
   
   

   4. registers

   
   
   

   5. PROM

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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164. 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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165. 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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