denary, binary and hexadecimal w/ equations Flashcards
1
Q
What is denary
A
base 10, 0->10
2
Q
What is binary represented as
A
base 2, 0->1, thought of as on/off
3
Q
what is data stored as
A
binary digits(bits)
4
Q
what is nibble
A
4 bits
5
Q
what is byte
A
8 bits
6
Q
what is kilobyte/kibibyte
A
1000 bytes/1024 bytes
7
Q
megabyte/mebibyte
A
100 kilobytes/1024 kibibytes
8
Q
what is first 4 in binary sequence
A
8,4,2,1
9
Q
what is 1010 in denary
A
10
10
Q
what base is hexadecimal
A
16—-0->0,10->a->f
11
Q
Why is it useful?
A
can represent a pattern of 4 bits in 1 hexdigit
12
Q
convert 31 into hexadecimal
A
1F how many times does 16 go into 31->1
how many times does 1 go into 15->15->f
16|1
1 |f
13
Q
convert 210 into hexadecimal
A
210
14
Q
27(hex) into decimal
A
216+17=39
15
Q
1101 in hex
A
1101–>decimal= 8+4+1=13
