Computer memory is the storage space in the computer, where data is processed and instructions required for processing are stored.CPU is the brain of the computer. CPU needs to have some palce where it can hold instructions and data during processing.

1. MEMORY OF COMPUTER
SYSTEM
AND
UNITS OF MEMORY

2. Computer memory is the storage space
in the computer, where data is processed
and instructions required for processing
are stored.CPU is the brain of the
computer. CPU needs to have some palce
where it can hold instructions and data
during processing.
There are 2 types of memories –
1. Primary Memory (Main Memory)
2. Secondary Memory

3. RAM (Random
Access Memory)
ROM (Read Only
Memory)

5. PEN
DRIVE
DVD BLU
RAY
DISK
HARD
DISK

6. These are magnetic and optical memories.
It is known as the backup memory.
It is a non-volatile memory.
Data is permanently stored even if power is switched off.
It is used for storage of data in a computer.
Computer may run without the secondary memory.
Slower than primary memories.

7. • Memory unit is the amount of data that can be stored in the storage unit.
• Computer stores and processes data in the form of binary numbers.
• A binary number is either 0 or 1 and is known as bit (binary digit)

8. UNIT SHORT FORM FULL NAME
1 bit Bit Binary Digit
8 bits 1 Bytes Byte
1024 bytes 1 KB Kilo Byte
1024 KB 1 MB Mega Byte
1024 MB 1 GB Giga Byte
1024 GB 1 TB Terra Byte
1024 TB 1 PB Peta Byte
1024 PB 1 EB Exa Byte