intro to computers lesson 3

1. BASIC PARTS
OF A
COMPUTER

2. OBJECTIVES
• AT THE END OF THE LESSON, THE STUDENTS ARE
EXPECTED TO:
• IDENTIFY AND NAME THE BASIC PARTS OF
COMPUTER;
• DISCUSS THE FUNCTIONS OF THE BASIC PARTS OF
COMPUTER;
• APPRECIATE THE IMPORTANCE OF THE BASIC
PARTS OF COMPUTER.

3. COMPUTER
•AN ELECTRONIC DEVICE THAT STORES AND
MANIPULATES INFORMATION.
•A MACHINE THAT PERFORMS TASKS, SUCH
AS CALCULATIONS OR ELECTRONIC
COMMUNICATIONS, UNDER THE CONTROL
OF A SET OF INSTRUCTIONS CALLED A
PROGRAM.

4. A COMPUTER IS NOT AN
ACRONYM AND
SOMETIMES
ABBREVIATED
AS 'COMP' OR 'PUTER'.

5. •THE TERM "COMPUTER" WAS
ORIGINALLY GIVEN TO HUMANS
(HUMAN COMPUTERS) WHO
PERFORMED NUMERICAL
CALCULATIONS USING MECHANICAL
CALCULATORS, SUCH AS
THE ABACUS AND PASCALINE.

6. THE TERM WAS LATER
GIVEN TO A
MECHANICAL DEVICE AS
THEY BEGAN REPLACING
THE HUMAN

7. COMPUTER’S BASIC
HARDWARES

8. COMPUTER SYSTEM
UNIT
THIS IS WHERE EVERYTHING COMES
TOGETHER TO WORK. THE SYSTEM BOX
HOLDS THE CENTRAL PROCESSING UNIT TO
ACT AS THE BRAINS OF THE COMPUTER. THE
UNIT CONTAINS THE MOTHERBOARD WHICH
IS THE MAIN CIRCUITRY FOR THE SYSTEM.

9. SYSTEM UNIT

10. MONITOR
•THE MONITOR IS THE VISUAL COMPONENT OF
THE COMPUTER. IT DISPLAYS INFORMATION TO
THE USER. THIS IS A REQUIRED PART OF THE
COMPUTER. THIS PART REQUIRES ELECTRICITY
SO IT WILL HAVE ITS OWN POWER CORD TO PLUG
INTO AN OUTLET.

11. TYPES OF MONITOR

12. CATHODE RAY TUBE
(CRT)
USES A VACUUM TUBE TO
DISPLAY IMAGES ON THE
SCREEN.

13. CRT
MONITO
R

14. LIQUID CRYSTAL DISPLAY
(LCD)
•ALSO KNOWN AS LIQUID CRYSTAL
DIODE.
•IS ONE OF THE MOST ADVANCED
TECHNOLOGIES AVAILABLE AT
PRESENT.

15. LCD
MONITO
R

16. LIGHT-EMITTING DIODES
(LED)
•LED MONITORS ARE THE LATEST TYPES OF
MONITORS IN THE MARKET TODAY.
•LIKE LCD, IT IS AGAIN A FLAT PANEL DISPLAY
MAKING USE OF LIGHT-EMITTING DIODES FOR
BACK-LIGHTNING.

17. LED
MONITO
R

18. KEYBOARD
•USED FOR ENTERING DATA, GENERATING
COMMANDS. THE KEYBOARD LAYOUT IS
SIMILAR TO A TYPEWRITER WITH ADDITIONAL
KEYS FOR OTHER FUNCTIONS. THERE IS A
NUMBER KEYPAD TO THE RIGHT OF THE MAIN
ALPHABETICAL KEYPAD.

19. TYPES OF KEYBOARD

20. PS/2 KEYBOARD
•USES AN OLD MODEL
CONNECTOR TO CONNECT A
KEYBOARD TO THE COMPUTER.

21. PS/2 KEYBOARD
CABLE

22. USB KEYBOARD
•AT THE END OF THE WIRE IS
A USB PLUG THAT GOES INTO
A USB PORT ON YOUR
COMPUTER.

23. USB KEYBOARD

24. WIRELESS
KEYBOARD
•A WIRELESS KEYBOARD IS A COMPUTER
KEYBOARD THAT ALLOWS THE USER TO
COMMUNICATE WITH COMPUTERS, TABLETS, OR
LAPTOPS WITH THE HELP OF RADIO
FREQUENCY (RF), INFRARED (IR)
OR BLUETOOTH TECHNOLOGY.

25. WIRELESS
KEYBOAR
D

26. MOUSE
•USED FOR MAKING SELECTIONS. THERE ARE
TWO BUTTONS ON A MOUSE. MOST
ACTIONS ARE PERFORMED USING THE LEFT
MOUSE BUTTON. SOME MICE HAVE CORDS
AND SOME DO NOT.

27. TYPES OF MOUSE

28. PS2 MOUSE
•USES AN OLD MODEL
CONNECTOR TO
CONNECT A MOUSE TO
THE COMPUTER.

29. PS/2 MOUSE
CABLE

30. USB MOUSE
•AT THE END OF THE WIRE IS
A USB PLUG THAT GOES INTO
A USB PORT ON YOUR
COMPUTER.

31. USB MOUSE

32. WIRELESS MOUSE
• CORDLESS OR WIRELESS MICE TRANSMIT DATA
VIA INFRARED RADIATION OR RADIO (INCLUDING
BLUETOOTH AND WI-FI). THE RECEIVER IS
CONNECTED TO THE COMPUTER THROUGH A
SERIAL OR USB PORT, OR CAN BE BUILT IN (AS IS
SOMETIMES THE CASE WITH BLUETOOTH AND WI-
FI).

33. WIRELESS
MOUSE

34. SPEAKER
•THE SPEAKERS ARE THE
AUDIO COMPONENT OF
THE COMPUTER.

35. SPEAKER

36. END OF
TOPIC