2. Today, many people use
computers at work, school, and
home
To prepare documents, play
games, send and receive e-mails,
surf the internet, watch videos,
and more.
3. Who invented
computer?
The analytical engine designed by
Charles Babbage in 1830 is
considered by many to be the first
computer.
Charles Babbage is often called the
Father of Computer
8. 1. Supercomputer
- is the fastest and most powerful
computer in terms of performance
& data processing
- it uses its power to run one
program at a time.
10. 2. Mainframe computer
- is not as powerful as the
supercomputer
- it is designed to run
multiple programs
concurrently.
11. It is commonly used in:
Banks
Educational Institution
Insurance companies
12. 3. Minicomputer
- also known as “Midrange” computer fill the space
between the mainframe and microcomputer.
- It is smaller than Supercomputer or
Mainframe computer but bigger and more
powerful than the microcomputer.
13. Some of its uses are as:
Data Management device
Communications Portal
Process Control
14. 4. Microcomputer
- is the most widely used
computer – desktop, laptops,
tablets, and smartphones.
- It is the cheapest among the
different classes of
17. Computer system
- is a collection of entities that are
designed to receive, process,
manage, and present information in
a meaningful format
18. - it has 3 elements that
will make a computer
really useful
19. 1.Hardware
- refers to the physical, tangible
computer equipment and
devices
- provides support for major
functions such as input, process,
output and storage.
21. A. INPUT DEVICES
- are composed of a device that
accepts data and
instructions from the user or from
another computer system
22. A.1. Keyboard
- a computer keyboard is an input device
used to enter characters
and functions into the computer system by
pressing buttons, or keys.
- it is the primary device used to enter text.
23. A.2. Mouse
- The mouse is another input device used
to point and select objects on
the computer monitor.
- It allows the computer user substantial
latitude in how to accomplish a wide
variety of tasks.
24. A.3. Scanner
- scanner is use to capture a source
document and converts printed
data or images into an electronic data
format that a computer can store or
process as required.
25. A.4. Microphone
- Microphone is used to input sound that is
then stored in a digital form.
- It is used for various applications such as
adding sound to a multimedia
presentation or for mixing music
26. B. OUTPUT DEVICE
- is any piece of computer hardware that
displays results after the computer has
processed the input data that has been
entered.
27. B.1. Monitor
- is an electronic visual computer
display
- includes a screen, circuitry, and the
case in which that circuitry is
enclosed.
29. B.3. Speaker
- a computer speaker is an output
hardware device that produces
sound.
30. B.4. Projector
- A projector is an output device that
projects an image onto a large surface,
such as a white screen or wall.
31. C. PROCESS DEVICE
- is the computer’s circuitry in the
system unit. It plays
an important role in processing
operations
- it is used to process data, using
instructions from the program.
32. C.1. Motherboard / Mainboard / System
Board
– is the main circuit board of
a computer
- contains all the circuits and
components that run the computer
33. C.2. CPU (Central Processing Unit)
- The processor is the main “brain” or
“heart” of a computer system
- it performs all of the instructions and
calculations that are needed and manages the
flow of information through a computer.
34. C.3. RAM – (Random Access Memory)
- is volatile, meaning it holds data
only when the power is on.
- When the power is off, RAM's contents
are lost.
35. C.4. Video Card/GPU (Graphics Processing
Unit)
- also called a display card,
graphics card, display adapter, or
graphics adapter is an expansion card which
generates a feed of output images to a display
device (such as a computer monitor)
38. 2. Data Analysis
- Computer users can create
spreadsheets and use computer
programs to quickly and easily process
large amounts of data so that they can
perform complex calculations
39. 3.Internet Browsing - Many people
enjoy surfing the web to find
information, use social media,
read news, watch videos, or listen
to music.
40. 4. Web Cameras - This video
recording device is useful
for online classes and
meetings, as well as for
creating personal videos.
41. 5. Playing Games - A large
variety of computer games are
available for individuals to play
on computers, phones, or game
consoles.
42. 6. Creating Applications -
Applications (or apps) are software
available on mobile phones,
desktops, and laptop computers.
- Apps help complete a variety of
tasks on the computer.
44. 1/2 crosswise
Answer the following questions:
1. How does computer helps you as a learner? Cite
specific examples.
2. Explain the importance of knowing the use of
computer in the modern world.
