3. ACTIVITY NO: 1
1. In your own definition, what is a computer?
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2. What is the importance and uses of a computer?
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3. How do computers help students?
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5. 1. Analog Computers
2. Digital Computers
3. Hybrid Computers
Analog Computers use continuous variables for
mathematical operations and utilizes mechanical or
electrical energy. They represent physical quantities in the
form of waves or in continuous form.
6. 1. Analog Computers
2. Digital Computers
3. Hybrid Computers
Digital computers use digital circuits and
are designed to operate on two states,
namely bits 0 and 1. Data on these
computers is represented as a series of 0s
and 1s..
7. 1. Analog Computers
2. Digital Computers
3. Hybrid Computers
Hybrid computers are a combination of
both digital and analog computers. In this
type of computers, the digital segments
perform process control by conversion of
analog signals to digital ones or vice versa.
8. 1. MICROCOMPUTER
This type of computer are typically used by a single user that
uses a microprocessor as its central processing unit (CPU).
Desktop Computer
Laptop Computer
Notebook Computer
Netbook Computer
Personal Digital Assistant
Tablet Computer
Wearable Computer
9.
10. 2. Minicomputer – a small computer that is intermediate between a microcomputer and a mainframe in
size, speed, and capacity that can support time-sharing, and that is often dedicated to a single application.
3. Servers – computers designed to provide services to client machines in a computer network. They have
larger storage capacities and powerful processors. Running on them are programs that serve client requests
and allocate resources like memory and time to client machines. Usually they are very large in size, as they
have large processors and many hard drives. They are designed to be fail-safe and resistant to crash.
4. Mainframe Computer - Also known as “big iron.” A high-level computer designed for the most
intensive computational tasks. Often shared by multiple users connected to the computer via terminals.
5. Supercomputer - is a computer that performs at or near the currently highest operational rate for
computers. A supercomputer is typically used for scientific and engineering applications that must handle very
large databases or do a great amount of computation (or both).
14. HARDWARE
Hardware is the mechanical part of the computer system. Anything
that can be touched or any tangible part of the computer system is
called the hardware component.
15. 1.Input Devices
2. Output Devices
3. I/O Devices
4. System Unit
5. Storage devices
6. Communication Devices
17. Input devices are the hardware component that accepts data and
instructions from the user or from another computer system.
18. Pointing Devices – as the name implies, these devices are used to
select or point objects (e.g. texts, images, icons, etc.) from your
screen.
19. Scanning Devices – these devices can read text or illustrations
printed on paper and translates the information into a form the
computer can use.
20. Audio Input Devices - also known as speech or voice recognition systems
that allow a user to send audio signals to a computer for processing, recording,
or carrying out commands. Its primary function of this device is to accept,
combine, process and monitor audio.
21. Video Input Devices – devices that capture an image or video of
the scene in front of it typically via Universal Serial Bus (USB) or that
is built into a laptop or desktop screen.
22. Output Devices are any piece of computer hardware that displays
results after the computer has processed the input data that has
been entered.
23. LCD Projectors – this device utilize two
sheets of polarizing material with a liquid
crystal solution between them.
Printers – these devices print text or illustrations on
paper. Examples of these are Ink-Jet or Bubble-Jet
Printer, Laser Printer, LCD and LED Printer, Line Printer,
Thermal Printer, and Plotter.
26. I/O devices or Input/Output devices, as the name
implies, these devices can perform both as input and
output device.
27. Touchscreen – displays screen that is sensitive to the touch of a finger
or stylus. Options on the screen can be tapped, dragged, or pinched.
Examples of these are Automated Teller Machine, Point-of-Sales System,
tablet computers.
Smart Board – a type of display screen that has a touch sensitive
transparent panel covering the screen, which is similar to a touch screen.
Digital Camera – records and stores photographic images in digital
form that can be viewed on the device itself or can be fed to a computer.
32. Communication Devices are pieces of equipment or hardware
designed to move information or data from one place to another.
They also allow one computer device to communicate with
another.
34. Software is a set of instructions (also called a program)
that guides the hardware to operate effectively.
• System Software
• Utility Software
• Application Software
36. Data are symbols or signals that are
inputted, stored, and processed by a
computer, for output as usable information.
Examples of these are letters, numbers.
38. Peopleware/User refers to people involved in the
data processing operations such as the system
administrators, database managers, programmers,
office workers, teachers, students, etc.
39.
40. Activity No. 2
1. List down 10 samples of an application
software that runs into your personal devices
(cellphone, tablet or Computer).
2. Draw 5 samples of an application software
you usually used this days.
