Please enable JavaScript.
Coggle requires JavaScript to display documents.
representing data - Coggle Diagram
representing data
how data is stored
nibble
4 bits = 1 nibble
byte
8 bits = 1 byte
kilobyte
1024 bytes = 1 kilobyte
megabyte
1024 kb = 1 megabyte
gigabyte
1024 mb = 1 gigabyte
bit
one digit is a bit
terrabyte
1024gb = 1 terabyte
difference between information and data
information is data with meaning
data + meaning = information
data is raw facts and figures
data types
date/time
allows a date or time to be stored. a date and time can be stored in many different ways
character
a letter, number and symbol
string
a string is a combination of characters together
numeric
integer
whole number either positive or negative
real number
a number that contains a decimal point. it can also be positive and negative