Basic Components of Computer

1. ASSIGNMENT – 1 (CSE 313)
TO
PRANAB BANDHU NATH
LECTURER
DEP:- CSE
CITY UNIVERSITY
BY
MD. EMON RABBANI
ID: 1834902101
DEP:- CSE
BATCH:- 49(B)
CITY UNIVERSITY

2. TOPIC:- BASIC COMPONENTS OF COMPUTER.
WHAT ARE THE COMPONENTS OF COMPUTER?
A COMPUTER IS AN ELECTRONIC SYSTEM. A COMPUTER IS MADE UP OF MANY TYPES OF
COMPONENTS. THOSE WHO MEET EACH OTHER AND COMPLETE A PARTICULAR TASK.

3. THERE ARE MAINLY FIVE BASIC COMPONENTS OF A
COMPUTER SYSTEM:-
 INPUT UNIT
 OUTPUT UNIT
 MEMORY UNIT OR STORAGE UNIT
 CONTROL UNIT
 ARITHMETIC AND LOGIC UNIT

4. INPUT UNIT
• WHEN A USER INPUTS DATA INTO A COMPUTER WITH THE HELP OF AN INPUT DEVICE. SO
THAT PROCESS IS CALLED THE INPUT UNIT.
THERE ARE DIFFERENT TYPES OF INPUT DEVICE:-
• KEYBOARD
• MOUSE
• SCANNER

5. OUTPUT UNIT
WHEN WE INPUT DATA INTO A COMPUTER, AND AFTER INPUT, PROCESSING TAKES PLACE. AND AFTER
PROCESSING, THE RESULT WHICH COMES ON OUR COMPUTER SCREEN IS CALLED SOFT COPY OUTPUT. AND
WHEN WE PRINT IT, THE HARD COPY IS OUTPUT. THIS PROCESS IS CALLED THE OUTPUT UNIT.
THERE ARE DIFFERENT TYPES OF OUTPUT DEVICES:
• MONITOR
• PRINTER
• PROJECTOR
• SOUND SPEAKER

6. MEMORY OR STORAGE UNIT
THIS UNIT RETAINS TEMPORARILY RESULTS TILL FURTHER PROCESSING, FOR EXAMPLE, RANDOM ACCESS MEMORY
(RAM).THIS MEMORY IS VOLATILE, WHICH MEANS DATA IS DISAPPEARS WHEN THE POWER IS LOST.
THE STORAGE OR “SECONDARY STORAGE” IS USED FOR RETAIN DIGITAL DATA AFTER PROCESSING FOR
PERMANENTLY.
THERE ARE TWO TYPES OF STORAGE DEVICE:-
• PRIMARY STORAGE DEVICE
• SECONDARY STORAGE DEVICE

7. CONTROL UNIT
IT IS LIKE A SUPERVISOR, THAT CHECKS ORDAINING OPERATIONS OR CHECK SEQUENCE IN WHICH
INSTRUCTIONS ARE EXECUTED.

8. ARITHMETIC AND LOGIC UNIT
ARITHMETIC LOGICAL UNIT IS USED FOR PROCESSING DATA AFTER INPUTTING DATA IS STORED
INTO PRIMARY UNIT. THE MAJOR OPERATIONS OF ARITHMETIC LOGICAL UNIT ARE ADDITION,
SUBTRACTION, MULTIPLICATION, DIVISION, LOGIC AND COMPARISON.

9. THANK YOU