To understand what a computer is

1. 10 QUESTIONS
5 SECONDS

4. S3cur3@#

7. Steve Jobs is the former CEO of …

12. COMPUTER HARDWARE SERVICING
Q2 - LESSON 1

13. SKILLS TO ACQUIRE:
 These skills are pre-requisite if you are planning to
take up CSS in Senior High School.
 These skills are essential to pass the National
Certification II Computer System Servicing of
TESDA.
 Basic computer knowledge
 Computer vocabulary (terminologies)
 Plan and prepare for configuration
 Configure computer systems and networks

15. COMPUTER
 is a programmable electronic device
designed to accept data, perform
prescribed mathematical and logical
operations at high speed, and display the
results of these operations.

16. TYPES OF COMPUTER
1. ANALOG COMPUTERS
2. DIGITAL COMPUTERS
3. HYBRID COMPUTERS

17. 1. ANALOG
COMPUTERS
1. 1873 (William Thomson)
2. 1898 (A.A. Michelson and
S.W. Stratton)
3. 1930 (Vanner Bush) –
Modern Analog Computer

18. ANALOG COMPUTERS
 Performs mathematical
operations
 Utilizes mechanical or
electrical energy

19. 2. DIGITAL COMPUTERS
1. 1946 (John Vincent
Atanasoff and Clifford
Berry)
 IBM Computer
 Apple Macintosh

20. 2. DIGITAL COMPUTERS
 It is electronic automated
machine that solves
problems involving words
and numbers.
 They are programmable.
 Represents 0s and 1s.

21. 3. HYBRID COMPUTERS
1. 1961 (Packard Bell)
 Hycomp 250

22. 3. HYBRID COMPUTERS
 Combination of both digital and
analog computers.
 The digital is the controller and
the analog does the
computation.
 The digital process the
conversion from analog to
digital.

23. 3. HYBRID COMPUTERS
 Fuel vending machine  Ultrasound Machine

24. 3. HYBRID COMPUTERS
 Forensic  Defense

25. CLASSIFICATION OF
COMPUTERS
1. MAINFRAME COMPUTERS
2. MINICOMPUTERS
3. SERVERS
4. SUPERCOMPUTER
5. MICROCOMPUTERS

26. 1. MAINFRAME COMPUTERS
 Mainframe computers are used by large
companies and organizations to perform critical
tasks.

27. 2. MINICOMPUTERS
 Mid-range system or workstations. A relatively
smaller 3rd generation computers.

28. 3. SERVER COMPUTER
 Provides services to
client machines in a
computer network.
 Large in size, with
large processors and
many hard drives.
 Fail-safe and resistant
to crash.

29. 4. SUPERCOMPUTER
 A supercomputer is used for sensitive and calculation-
intensive work such as scientific research and studies like
weather forecasting.

30. 5. MICROCOMPUTERS
With microprocessors
and central
processing unit.
Personal computers.
Single-user tasks

31. PERSONAL COMPUTERS
DESKTOP
LAPTOP
NETBOOK
HANDHELD DEVICES

32. PERSONAL COMPUTER
DESKTOP
LAPTOP
NETBOOK
HANDHELD DEVICES

33. 1. SOFTWARE
2. DATAWARE
3. HARDWARE
4. PEOPLEWARE
ELEMENTS OF
COMPUTER

34. 1. SOFTWARE
ELEMENTS OF
COMPUTER  Collection of computer programs
(application) and related data that
provides instructions for telling a
computer what to do and how to
do it (programing software).
• Microsoft products such as Office and Operating system.
• Music Application software like Spotify.
• Real-time online communication like Skype, Google Meet, and Zoom.
• Editing software.
• Internet browsers like Chrome, Safari, and Firefox.

35. 2. DATAWARE
ELEMENTS OF
COMPUTER  Also known as data warehouse
or enterprise data warehouse.
 A central repository of data
which is created by integrating
data from multiple disparate
sources.
• Databases

36. 3. PEOPLEWARE
ELEMENTS OF
COMPUTER
 Uses or anyone who involves in
the computer
• Computer engineers
• Website designers
• Technicians
• IT specialists such as database administrators or
networking specialists

37. 1. SOFTWARE
2. DATAWARE
3. PEOPLEWARE
4. HARDWARE
ELEMENTS OF
COMPUTER
 Uses or anyone who involves in
the computer

38. HARDWARE
 Hardware refers to the external and internal devices and
equipment that enable you to perform major functions such
as input, output, storage, communication, processing, and
more.