Friday, September 23, 2011

Bits & Bytes

1) What is a digit?
A digit is a single place that can hold numerical values between 0 and 9.

2) Where does the world bit originate from?
The word bit is originates from the word Binary digit.

3) What base do they use? What digits are available in base 2?
Computers use Binary Numbers, and therefore use Binary Digits in place of decimal digits as they do not use Base 10. This means that Binary Numbers only consists of the digits - and 1.

6) a) 21 20+1, 16+4+1, (1x16) + (1x4) + (1x1)
    b) 24 16+8, (1x16) + (2x4)
    c) 30 20+8+2, (1x16) + (1x4) + (1x8) + (1x2)

7) What is a byte?
A byte os when bits are bundled together into an 8-bit collection, creating a byte. Simply, a byte is comprised of exactly of 8 bits.

8) How many bytes in a kilo, mega, giga and tera bytes?
Kilo has 1024 byts, Mega has 1 048 576 bytes, Giga has 1 073 741 824 and lastly Tera bytes have 1 099 511 627 776 bytes in total.

9) Complete the following conversions:
1000MB = 1GB
500GB= 500 000MB
5000KB = 5MB

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