Try my best but no one is perfect in this world :)

1. 1
4/4/2019

2. PRESENTATION BY : -
Khadija Akram
2
4/4/2019

3. TOPIC :
“Memory and its
Types”
3
4/4/2019

4. MEMORY :
Memory is defined as :
“ The internal storage media of a computer is
called as Memory”
 User can save Information, data, programs
etc
 These Instruction we can save in memory
with the help of CPU
4
4/4/2019

5. MEMORY :-
5
4/4/2019

6. WHAT'S A BIT:-
Bit is the smallest unit of memory
Bit is abbreviated as Binary Digit
Bit can be 1 or 0
1 mean ON
0 mean OFF
So memory is a space in computer which
store 0 and 1 in form of information
6
4/4/2019

7. MEMORY SPACE LIMITATIONS:-
Bit
KB
MB
GB
TB
ZB
4/4/2019
7

8. TRIANGLULAR BITS DIFFERENCE :-
4/4/2019
8

9. IMPORTANCE OF MEMORY:-
 Memory is a Important part of Computer
 Without Memory there would be no
computer
 It is used for storing both Instructions
executed and Data
 The CPU accesses each location in the
memory by using a technique number called
as Memory Address
 Memory helps to save Data. 9
4/4/2019

10. TYPES OF MEMORY :
The Memory is of
two types :-
1. Primary Memory
2. Secondary Memory 10
4/4/2019

11. TYPES OF MEMORY :-
11
4/4/2019

12. PRIMARY MEMORY :-
“Primary Memory is also
called Volatile Memory ”
It is a temporary memory
12
4/4/2019

13. PRIMARY MEMORY :-
 In primary memory contents lost when we
turn off our Computer
 We never store our data permanently in it
 Select the part of memory to store data but
doesn't store data permanently
 Select part to store randomly Example:
RAM
13
4/4/2019

14. RAM : ( RANDOM ACCESS
MEMORY )
“RAM perform both
Operations Read and write ”
No Data loss happened if
power failure Occurs .
14
4/4/2019

15. RAM:-
15
4/4/2019

16. TYPES OF RAM ARE :
 DRAM ( Dynamic RAM)
 SRAM ( Static RAM )
 DrRAM (Dynamic rambes RAM) 16
4/4/2019

17. SECONDARY MEMORY :-
“Secondary memory is also
called Non-Volatile memory ”
 It is a Permanent Memory
17
4/4/2019

18. SECONDARY MEMORY IS
 Useful for External storage
media For Example :- Floppy Disk
,Magnetic Disk, Magnetic tape etc…..
 No Contents Lost
 Data ,instruction save permanently
Example : ROM
18
4/4/2019

19. ROM (READ ONLY
MEMORY :-
“ROM perform only Read
operation”
 No Data loss happened if power failure
Occurs .
19
4/4/2019

20. ROM :-
20
4/4/2019

21. TYPES OF ROM :-
Types of ROM are :-
 PROM (Programmable ROM)
 EROM (Erasable ROM)
 EEPROM (Electrical Erasable
Programmable ROM) 21
4/4/2019

22. 22
4/4/2019