Question

I have a question:

1A45 (Hexadecimal) GB= _____ (Binary) Bytes

Please tell how to fill in the answer!

Doing the calculation the conventional way, it takes a lot of time and i am not able to get the answer …

Answer 1

Hex-Bin conversion is easy, because each hex digit is four bit long. Memorize this table, and you’ll be able to do conversion in your head very easily:

0 0000
1 0001
2 0010
3 0011
4 0100
5 0101
6 0110
7 0111
8 1000
9 1001
A 1010
B 1011
C 1100
D 1101
E 1110
F 1111

Just replace each hex digit with its corresponding four bits, and you’ll get the first part of your answer.

Now for the GB: K means 10 binary zeros, M means 20 binary zeros, G means 30 binary zeros. Add zeros to the end of your HEX-converted-to-BIN number to get your final answer.