Binary Numbers and and Hexadecimal Flashcards
(8 cards)
1
Q
How many bits in 2 bytes?
A
2 x 8 = 16
2
Q
How many bytes in a MB?
A
1000 * 1000 = 1000000
3
Q
How many KB in a MB?
A
1000
4
Q
Why do computers only understand binary?
A
They contain switches which are either 1 or 0 (On or Off)
5
Q
Calculate the denary value of the 8-bit number 00101001
A
32 + 8 + 1 = 41
6
Q
Calculate the denary value of the 8-bit number 10000111
A
128 + 4 + 2 + 1 = 135
7
Q
Convert the denary number 68 to 8-bit binary
A
01000100
8
Q
What is the result when you add together these two binary numbers
00001111 + 01001101
A
01011100
