Data representation Flashcards
1
Q
What is the order for storage units
A
bit, Byte, Kilobyte, Megabyte, Gigabyte, Terabyte,
2
Q
how many bits go into 5 megabytes
A
1x8=8x1000=8000x1000=8000000x5= 4x10^7
3
Q
Order these file sizes in order of smallest to largest(1-4)
15 bits, 3 nibbles, 2 bytes , 1 kilobyte
A
1(3 nibbles), 2( 15 bits), 3( 2 bytes), 4( 1 kilobyte)
4
Q
Why is the base system for binary 2?
A
Because only two digits are only used (0 and 1)
5
Q
Why do Computers need any input converted into binary?
A
Because it is the language of computers and it’s what they use for anything
6
Q
What is 10111010 in decimal
A
128+32+16+8+2= 186
7
Q
What is 26 in binary
A
26-16=8-8=0=
00011000
8
Q
what is the method of working out binary/ decimal values using left binary shift
A
2^binary shift x original number
