Bits and Bytes

1. What is a Digit

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

2.       “Normal” counting numbers used in everyday life a based on what sequence of numbers?

3. Where does the word bit originate from?

BINARY DIGIT

4. Binary numbers don’t use base 10. What base do they use? What digits are available in base 2?
5.  
6.  

Ø  How would you write 4,321

Ø  (4 * 1000) + (3 * 100) + (2 * 10) + (1 * 1) = 4000 + 300 + 20 + 1

Ø  Write the following numbers in binary (base 2)

-21    

-24

-30

7.       What is a byte?

A group of binary digits operated a unit.

8. How many bytes in a kilo, mega, giga and tera bytes.

Kilobytes-1000 bytes

Megabytes- 1 000 000 bytes

Gigabytes- 1 000 000 000 bytes

Terabytes- 1 000 000 000 000 bytes

http://en.wikipedia.org/wiki/Terabyte

9.      Complete the following conversions;

·         1000 Mb =  1Gb

·         500 Gb=500 000 Mb

·         5000 Kb = 5Mb