Page 16 - Computer - 4

A sequence of eight bits is called a Byte. The Byte is the basic unit for measuring
computer memory. One byte represents a single character or digit.

Let us learn other bigger units of measuring computer memory.

Size Measurement Abbreviation
8 bits is equal to 1 Byte B

1024 B is equal to 1 Kilobyte KB

1024 KB is equal to 1 Megabyte MB

1024 MB is equal to 1 Gigabyte GB

1024 GB is equal to 1 Terabyte TB

1024 TB is equal to 1 Petabyte PB
1024 PB is equal to 1 Exabyte EB

1024 EB is equal to 1 Zettabyte ZB

1024 ZB is equal to 1 Yottabyte YB

TYPES OF COMPUTER MEMORY

Computer memory is of two types: Primary memory and Secondary memory.

Types of Computer memory

Primary Memory

A computer’s primary memory is also known as its Internal memory or Main memory.
It takes the form of memory chips that are either attached to or integrated into the

computer’s motherboard. It has limited data storage capacity. The CPU can access
primary memory directly. The CPU continuously reads the instructions stored in
main memory and executes them as needed.

Primary memory can be divided into two parts: ROM and RAM.

14