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JSS2: COMPUTER STUDIES - 1ST TERM

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  1. Computer Software | Week 1
    4 Topics
    |
    1 Quiz
  2. Operating System | Week 2
    9 Topics
    |
    1 Quiz
  3. Computer Memory: Primary And Secondary Memory | Week 3
    5 Topics
    |
    1 Quiz
  4. Computer Memory II: Secondary Memory (Backing Storage) | Week 4
    2 Topics
    |
    1 Quiz
  5. Number System I | Week 5
    4 Topics
    |
    1 Quiz
  6. Number System II | Week 6
    3 Topics
    |
    1 Quiz
  7. Units of Storage In Computer | Week 7
    2 Topics
    |
    1 Quiz
  8. Problem Solving Skills With Computer | Week 8
    5 Topics
    |
    1 Quiz
  9. Computer Programming Languages | Week 9
    3 Topics
    |
    1 Quiz



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Topic Content:

  • Conversion from One Unit to Another
  • Worked Examples
  • 1 nibble = 4 bits
  • 8 bits =  1 Byte (∴ 2 nibbles = 1 Byte)
  • 1000 Bytes =  1 Kilobyte
  • 1000 Kilobytes =  1 Megabyte
  • 1000 Megabytes = 1 Gigabyte
  • 1000 Gigabytes = 1 Terabyte

Kilobyte:

Kilobyte abbreviated as KB is a unit of measurement equivalent to one thousand bytes of computer memory or disk capacity. A byte is a value which is represented by 8 bits and a bit is a binary digit comprising of either 0 or 1. In computer data storage, you are allowed a total of 1024 bytes before you use up 1KB. In decimal systems, kilo stands for 1000 but the computer world is based on a binary system of twos instead of tens. So, a kilobyte is actually 1,024 bytes.

Megabyte:

Megabyte, abbreviated as MB, is a unit of measurement equivalent to 1024 Kilobytes (1024 × 1024 bytes) meaning that you can use over 1 million bytes before you use up one MB.

 

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