TABLE OF CONTENTS:
Storage Devices……………………………………………………1
Computer Memory……………………………………………………2
Primary Memory…………………………………………………….3
Functions of R.A.M……………………………………………4
Care and maintenance of compouterss..4

Storage Devices
T

hese are the locations where data ,instructions or information is kept in a computer .Storage is also referred to as memory in computers.
ALA

Memory
ALU
Output
Devices
Input
Devices

Control
Unit

A structural diagram of a computer (Von Neumann Architecture)
Computer Memory
M
emory refers to the storage locations in a computer .Data ,instructions and information is stored in memory .Any data in computer is interpreted as a series of binary digits (i.e 0s or 1s)otherwise called bits. A Bit is the smallest unit of data representation in a computer .The term bit comes from the contraption of two words :binary and digits .A Byte is a combination /collection of 8 bits .Computer memory is measured in terms of numbers of bytes it can hold .Memory capacity is usually visualized in multiples 1024 bytes i.e .There two types of memory:
Primary and secondary memory
There are two types of computer memory: 1024bytes=1 kilobyte1024 Kilobytes=1Megabyte1024Megabytes=1Gigabyte1024Gigabyte=1Terabyte |

Primary Memory
It is also known as the main memory and is internal and dedicated to the operations of the computer .Primary memory offers limited storage capacity for data .There are two main types of primary memory :The Random Access Memory(R.A.M)and the read only memory(R.O.M).Other types of primary memory are :cache ,virtual memory e.t.c

Differences Between R.A.M and R.O.M Random Access Memory | Read Only Memory | Offers temporary data storage | Offers permanent data storage | Is Volatile(losses data when power is switched off) | Is Non-volatile (Data remains intact even when there is no power) | Is