Types of Memory
Two main types of storage units
Primary and Secondary storage
Primary storage often is called memory because
Is similar to a function of the human brain
Computers use this number system
Binary number system
Data is stored as
Bytes and words
The faster memory type
Primary memory
Difference between computer storage and human memory
Computer memory must retain symbols without changes and locate data quickly
Each binary digit is called
Bit
Words are usually in length
One or more bytes
Cheaper storage unit
Secondary storage
The number of nerve cells in a typical human brain
86 billion nerve cells
The most common binary code
8-bit code
Fixed number of consecutive bits represent a character
Byte