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digital data representing data - Coggle Diagram
digital data representing data
how data is stored
kilobyte
1024 bytes.
megabyte
1024 kilobytes
byte
8 bits are known as a byte
gigabyte
1024 megabytes
nibble
a group of 4 bits
terabyte
1024 gigabytes
bit
Either 1 or 0 smallest unit
data types
numeric
real number- a number that contains a decimal point. it can also be posotive or negative
integer-whole number either posotive or negative
data/time- allows a date or time to be stored. a date and time can be in many different formats
character- a letter number and symbol
string- text or alphanumeric. a string allows letters numbers punctuation marks and symbols to be entered.
difference between infor and data
info is data with meaning (context)
DATA + MEANING = INFORMATION
data is raw facts and figures