explain the binary number system
computers use a binary number system consisting of only 0s and 1s
0s and 1s are converted to bits and bytes. How much is 1 bit?
a single 0 or a 1
Bits and Bytes
how much is in 1 byte?
8 bits
eg. 1 character of text
Bits and Bytes
how much is in a nibble?
4 bits (half a byte)
Bits and Bytes
how much is in 1 KB?
1000 bytes
eg. a full page of text - 30KB
Bits and Bytes
how much is in 1MB?
1000KB or 1000x1000 bytes
eg. one small digital colour photograph - 3 MB
Bits and Bytes
How much is in 1GB?
1000MB
eg. A DVD - 4.5GB
Bits and Bytes
how much is in 1 TB?
1000 GB
eg. Hard disk - 1 TB
what is the order of the denary system?
128 64 32 16