Please enable JavaScript.
Coggle requires JavaScript to display documents.
Digital Data Representing Data - Coggle Diagram
Digital Data Representing Data
How Data Is Stored
Bit
Smallest unit of storage, Digit's is either a 1 or 0
Nibble
A group of 4 bits
Byte
A byte is 8 bits. 8 bits ( Byte ) is usually a letter typed on a keyboard
Kilobyte
A kilobyte is 1024 Bytes. This would be a small word document
Megabyte
1 megabyte is 1,024 Kilobytes and abbreviated to 1MB
Gigabyte
1 GB is 1,024 Megabytes.
Terabyte
1 TB is 1,024 Gigabytes.
Data Types
Integer
Whole Number either positive or Negative
Real Number
A number that contains a decimal point. This can also be positive or Negative
Date/Time
Allows a date or time to be stored. Data and time can be in many different formats
Character
A Letter, Number or Symbol
String
'Text' or 'Alphanumeric'. A string allows letters, numbers, punctuation marks and symbols to be entered.
Difference between Information and Data.
Data is raw facts and Figures
Information is Data with meaning
DATA + MEANING = INFORMATION