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Activity Sheet 1.1 - Types of Computer

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JUAN F.

TRIVIÑO MEMORIAL HIGH SCHOOL


Caranan, Pasacao, Camarines Sur
Technical Vocational Department
TVE – CSS Activity Sheet

NAME: __________________________________________________ DATE: __________ TVE 9 - CSS

Activity Sheet NO.: 1.1


COMPETENCY: ICCS LO2
TOPIC Types of Computers
Activity: Reading and Understanding

Instructions
a. Read the material below.
b. Write at least 3 questions that you have in mind about the topic.
c. Write at least 3 statements about what you have learned and struck you the most about the topic.
d. Take notes of a summary of the material on your notebook. (To be check on the next meeting)
e. Email your questions to marjorieirene.delarosa@deped.gov.ph with following format: Subject Line:
CSS9_Q1A1_Questions Salutation/Greetings:
Email Content:
Body:
Activity: Reading and Understanding
Topic: Types of Computers
Questions: 1.
2.
3.
Closing Lines
__________________________________________________________________________________________________

READING MATERIAL
TYPES OF COMPUTERS
A. Based on Principles of Operation:
There are three different types of computers according to the structure, speed and architecture. Those
three types of computers are:

Analog Computer is computing device that works on continuous


range of values. The results given by the analog computers will only
be approximate since they deal with quantities that vary continuously.
It generally deals with physical variables such as pressure,
temperature, speed, and voltages.

• Thermometer – it measures the length of a mercury column

• Traditional Clock – the needle of clock covers the distance

• Analog Computers • Digital Computers • Hybrid Computers


Examples: continuously.

Digital Computer operates on digital data such


as numbers. It uses binary number system in which
there are only two digits 0 and 1. Each one is called a
bit. It can perform arithmetic operations like addition,
subtraction, multiplication and division and also logical
operations. Digital computer can give more accurate
and faster results and most of the computers available
today are digital computers.
Examples:
• Accounting machines
• Calculators

Hybrid Computer combines the


desirable features of analog and digital computers. It
is mostly used for automatic operations of complicated
physical process and machines. It has the speed of
analog and the accuracy of digital computer.
Examples:
• In the hospital’s ICU (Intensive Care
Unit), analog quality controls the temperature of
the room, digital quality informs the
doctor about the patient’s temperature,
blood pressure and other vital signs.
• Devices used in petrol pump.

B. Based on Configuration (Size and Capability)


Computers are classified in various ways. First, they differ according to size and power. Computers
can be supercomputers, mainframes, minicomputers and microcomputers.
Supercomputer
Supercomputer is the largest and most powerful computers. It is also the most expensive because
it is custom-made for the needs of governments and international groups and companies.
Supercomputers are used for very special
purpose and engineering applications, including
analyzing data from space probes, researching
nuclear energy, creating weather maps and
weather forecasting, and finding oil. Examples:
• GRAPE (Gravity Pipe) – used for
gravitational computations
• Anton – used for studying molecular
dynamics:
• Cray XT5 – used for various
applications that need great ability to process
information. One of the world’s most powerful
supercomputers

Mainframe Computer
Mainframe computer is a large computer that can process data at a very high
rate of speed. It is mainly used by big businesses and companies to process
and compute large, bulk amounts of data and handle millions of transactions.

Examples:
• Bank transactions
• Census and consumer statistics
• Airline ticketing
• Large management and payroll needs

Minicomputer
Minicomputer is another type of multi-use machine that is smaller, less expensive,
and less powerful than mainframe. This is used in mid-range businesses and
companies for their processing needs. Minicomputers have been replaced by
network servers, which can also do multi-user and relate d applications.

Server
Server provides services to another computer program and its user, also
known as the client. It is powerful than normal computers . Server hardware
also differs from desktop hardware in terms of its form factor.
Microcomputer

Microcomputer is probably the most popular kind of computers. The invention of


microprocessor (single chip CPU) gave birth to the much cheaper microcomputers.
They are further classified into different types:

1. Desktop Computers
Today the Desktop computers are the most popular computer
systems. These desktop computers are also known as personal
computers or simply PCs. They are usually easier to use, upgrade
and more affordable. Users can perform several complicated task in
few times without getting any hindrance. PCs are normally intended
for individual users for their word processing and other small
application requirements.

2. Laptop/Notebook Computers
Laptop computers are portable computers. They are lightweight computers with a thin
screen. They are also called as notebook/netbook computers because of their small size
and designed like a stylish briefcase. It is battery operated computers that are very
popular with travelers. These micro computers are more expensive than desktop
computers because in which various small sizes of components are in built. Its best
advantage is portability.
3. Tablet Computers
Tablet computers are handheld portable devices along with touch screen
interface, and they are smaller in size than notebook devices but bigger to
Smartphone. In which, users can perform both activities (Input/Output) on its
LCD screen and can be run several applications such word processing and
others.

4. Smartphones
Smartphone is a touch screen mobile phone that is capable to perform various
advance functions like computer such as installs OS (operating system),
download different applications, accessibility to internet, and more activities.

5. PDA Computers
PDA stands for “Personal Digital Assistant”. It is a handheld device with great
portability as well as smaller in size like tablet, palmtop, and smartphone. PDA
can make communication with other computers like laptops, desktops and other
through Wi-Fi, Bluetooth, radio beams, infrared (IR), radio waves, and LAN
cable. Commonly used for maintaining the record to appointment calendars, to-
do lists, take down notes, and address books.

6. Game Consoles
Game console is a special kind of computer primarily used for playing video
games. It is a device that outputs a video signal or visual image to display a video
game that one or more people can play. It also allows non-gaming activities such
watching videos, viewing pictures, or browsing the Internet. Example is a PS4 and
a PS5.

7. Modern TVs
Modern televisions (Internet TVs) are now having their own applications
and interactive features. These features allow users to stream music,
movies online or browse the Internet, and view photos.

8. Wearable Computers
A wearable computer is any small technology device capable of storing and processing
data that will be worn on the body. These are designed for accessibility and
convenience, as well as improvements to workplaces by making information rapidly and
readily available to the wearer.

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