bits and bytes questions.

1. What is a Digit?
A digit is a single number
2. “normal” counting numbers used in everyday life a based on what sequence of numbers?
0 1 2 3 4 5 6 7 8 or 9
3. Where does the word bit originate from?
bit is short for binary digits
4. Binary numbers don’t use base 10. What base do they use? What digits are available in base 2?
Binary numbers use base 2 which is a combination of 0 and 1s.

BASE 10
If 6,357 can be written as;
(6 * 1000) + (3 * 100) + (5 * 10) + (7 * 1) = 6000 + 300 + 50 + 7
How would you write 4,321?
(4 * 1000) + (3 * 100) + (2 * 10) + (1 * 1) = 4000 + 300 + 20 + 1

7. What is a byte?
A byte is 8 bits

8. How many bytes in a kilo, mega, giga and tera bytes?
kilo: 1000 bytes
mega: 1000 x 1000 bytes (1000 kilobytes)
giga: 1000 x 1000 x 1000 bytes (1000 megabytes)
tera: 1000 x 1000 x 1000 x 1000 bytes (1000 giga bytes)

9. Complete the following conversions;
1000 Mb = 1 Gb
500 Gb = 1000 x 500 Mb
5000 Kb = 5 Mb