A computer is an electronic system that can accept, store, and process data to produce information. It carries out tasks through programs and has capabilities for repetitive processing, self-operation, and decision making. A computer system consists of hardware, software, and peopleware. The hardware includes the system unit with a CPU and memory, as well as input, storage, and output devices. Software includes programming languages, system software, and application software. People are the most important component and use computers for various purposes.

1. BASIC
COMPUTER
CONCEPTS

2. COMPUTER
An electronic system that can be
programmed to accept, store and
manipulate/process data to come out with
meaningful output referred to as
information
It carries out its task/s through a set of
instructions called a computer program.

3. Capabilities of Computer
 Processing
of Repetitive, High
Volume Applications
 Self-Operation
 Decision Making

4. Limitations of Computer
 Failure to derive meaning from
objects
 Inability to generate information on
its own
 Failure to correct wrong answer

5. Classification by Size
 NOTEBOOK/LAPT
OP
 DESKTOP/ PC
 MINICOMPUTER
 MAINFRAME
 NETWORK

6. Components of Computer System
 PEOPLEWARE
Managers
System Analyst/Designer
Programmers
Operators/Technicians
Users
 SOFTWARE
System Software
Application Software
 HARD WARE

7. HARDWARE
Thisrefers to the
physical equipment that
make up a computer
system

8. HARDWARE
COMPONENTS
 SYSTEM UNIT
Microprocessor
Memory
Read-Only Memory(ROM)
Random Access Memory (RAM)
 INPUT DEVICES
 STORAGE DEVICES
 OUTPUT DEVICES

9. SYSTEM UNIT

10. MOTHERBOARD

11. Central Processing Unit
 This is the “BRAIN” of a
Computer System
 It is the device that fetches,
decodes and executes
instructions
 Transfers data between the
memory and other peripheral
devices through data bus
 For Personal/ Micro Computers,
this is referred to as the Micro
Chip

12. M
E
M
O
R
Y

13. INPUT
Input device is a unit that is
used to get data from the
user into the central
processing unit.

14. INPUT
Keyboard and
Mouse

15. INPUT
Card Reader Barcode Reader

16. STORAGE
 Data instructions enter main
storage and are held until
needed to be worked on.
 Itcan be an auxiliary or backing
storage.

17. STORAGE
Diskette Magnetic Tape

18. STORAGE
Universal Serial Bus CDs/DVDs
Sticks

19. STORAGE
Hard Disk

20. OUTPUT
 Resultsare taken from main storage
and fed to an output device.
 Shows people the processed data-
information in a ready-to-use form.

21. OUTPUT
MONITOR

22. OUTPUT
Printer

23. SOFTWARE
 Set of programs, procedures, routines and
documents associated with the operation of
a computer system.
 Software is the name given to the program
that causes a computer to carry out
particular operations

24. Types of Software
 Programming Languages - medium used by humans
to communicate instructions to a computer.
 Systems Software - collection of programs which
contribute to the control and performance of the
computer
 Application Software - programs designed to
perform specific jobs such as spreadsheets,
wordprocessors, graphic softwares system

25. PEOPLEWARE
The most important
component of
computer system –
people use the power
of the computer for
some purpose.

26. Recognize?
Input, Processing, Output, or Storage

27. Recognize?
Input, Processing, Output, or Storage

28. Recognize?
Input, Processing, Output, or Storage

29. Recognize?
Input, Processing, Output, or Storage

30. Recognize?
Input, Processing, Output, or Storage

31. Recognize?
Input, Processing, Output, or Storage

32. Recognize?
Input, Processing, Output, or
Storage

33. Recognize?
Input, Processing, Output, or Storage

34. Recognize?
Input, Processing, Output, or Storage

35. Recognize?
Input, Processing, Output, or Storage

36. Recognize?
Input, Processing, Output, or Storage

37. Recognize?
Input, Processing, Output, or Storage