Bits & Bytes

1. What is a digit?

A digit is the 1 or 0 in a bit.

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


0 to 9 ten does not count since its made up of two existent numbers

3. Where does the word bit originate from?

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

They all count in two's

5. 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

6.Write the following numbers in binary (base 2)

21 = 101000

24 = 101000
30= 1010000

7. What is a byte?


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


9. Complete the following conversions;

1000 Mb = 1Gb
500 Gb = 5000Mb
5000 Kb = 5 Mb