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JSS2: COMPUTER STUDIES - 1ST TERM

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Lesson 7, Topic 2
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Conversion from One Unit to Another

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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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