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Computer studies year 7 exercise (hard)

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Computer studies year 7 exercise (hard) Document Transcript

  • 1. Name : ___________________________ Class : ______________ Date: _________________________ Computer Studies YEAR 7 Storage devices 1. All the data and instruction in the computer are measured in _________________. 2. Study the storage sizes and answer the question. 1 bit =_________________ 1 Byte = ______________ 8 bit = _________________ 1000 Kilobytes (KB) = ____________ 1000 bytes = __________________ 2 Gigabytes (GB) = ___________________ 1 Megabytes (MB) = _________________ 1000 Megabytes (MB) = __________________ 3. Underline the correct answer. i. Random Access Memory (RAM) is also called (Volatile memory / Non-volatile memory). ii. Read Only Memory (ROM) is also called (Volatile memory / Non-volatile memory). 4. i. Hard disk are measured in ________________ ii. Give TWO advantages and disadvantages of using a hard disk. 1. __________________________________________________________ 2. __________________________________________________________ 1. __________________________________________________________ 2. __________________________________________________________ 1|Page
  • 2. i. Floppy disks can hold data up to ________________ ii. Give TWO advantages and disadvantages of using a Floppy Disk / Diskette. 1. __________________________________________________________ 2. __________________________________________________________ 1. __________________________________________________________ 2. __________________________________________________________ 5. 2|Page
  • 3. 6. i. Zip Drive can holds data up to ________________ ii. Give ONE advantage and disadvantage of using a Zip drive. Advantage - __________________________________________________ Disadvantage - _______________________________________________ 7. i. CD-ROM can holds data up to ________________ ii. What are the differences between CD-ROM and CD-RW. ____________________________________________________________ ____________________________________________________________ ____________________________________________________________ iii. Give TWO advantages and disadvantages of using a CD-ROM. 1. __________________________________________________________ 2. __________________________________________________________ 1. __________________________________________________________ 2. __________________________________________________________ 3|Page
  • 4. 8. i. DVD can holds data up to ________________. ii. DVD stands for ____________________________________________. iii. Give ONE advantage and disadvantage of using a DVD. Advantage - __________________________________________________ Disadvantage - _______________________________________________ 4|Page
  • 5. i. State the features of a Flash disk. ______________, ______________, ______________, _____________ ii. Flash Disk nowadays can hold data up to __________________. iii. Give ONE advantage and disadvantage of using a Flash disk. Advantage - __________________________________________________ Disadvantage - _______________________________________________ 9. 5|Page