#comouter

Computer memory is capable of storing any type of information for a long time. Humans can store huge amounts of data but may forget due to many factors, but a computer's memory remains forever until someone removes it.

All information in the computer is handled using electrical components such as integrated circuits and semiconductors, all of which can recognize only two states of an electrical signal, while I represents the presence of a signal.

Therefore, a bit is the smallest or most elementary bit of computer memory. A bit can store either a zero or a one. Since a single bit can store only four unique combinations,

Types of computer memory

1   Primary memory

                         2 Secondary memory

Primary memory

Primary memory is also called the main memory. It is use for immediate access of data by the processor (CPU)

it is the memory that is in the silicon chips and fixed on the electronic circuit board , called motherboard present inside the CPU cabinet

There are two type OF PRIMARY MEMORY

1.  Random Access memory

2.  Read only memory

Random Access memory

Random access memory is also known as volatile. It means the information stored in the memory is lost when you turn off the computer or the power goes off.

It is directly accessed by the CPU it is the fastest memory of the computer.

The most common RAM size that you can find on computer and laptops are 2GB, 4GB, 8GB, soon.

Read only memory

Read only memory is also known as non- volatile memory, it retains the stored information even when the power has been switched off. It hold the startup instructions that prepare a computer for use. It also consists of programs that check the power off computer parts when you turn it on

Secondary memory