PTI Assignment 2: Pages 42-43 of textbook Discovering Computers
Lecturer: Mr. Tri Djoko Wahjono, Ir, M.Sc.
By: Veronica Ong (1701317660) of class 01PCT
Task: Complete questions 1 - 11 on pages 42-43 on the textbook Discovering Computers.
Questions and Answers:
1. Why Is Computer Literacy Vital in Today’s World?
Computer literacy is important in today’s world because the
whole world nowadays is rounded by technology. Every human being on the planet
has to have the ability to have the current knowledge and understanding of
computers and their uses. Technology also changes as time changes itself.
Computer literacy is very vital to success.
2. What Is a Computer, and What Is the Relationship between
Data and Information?
Computer is a digital machine which operates under the
control of instructions and commands which has a memory and can process data
according to the input data given, and processes the data according to the
commands stored on itself or the commands we give which the computer
understands. Data is a collection of data which aren’t processed yet by the
computer. Information is a form of data, which has already been processed by
the computer.
3. List and Describe the Five Components of a Computer.
The computer consists of five components, they are: Input
devices, output devices, system unit, storage devices, and communication
devices. An input device allows us to input our own data into the computer. An
output lets the computer show information to other people. The system unit is a
place where the computer stores data that are processed. In a storage device, a
computer records items from storage media. A communication device lets a
computer send and receive data, instructions, and information to another
computer.
4. What Are the Advantages and Disadvantages That Users
Experience When Working with Computers?
There are lots of advantages and disadvantages when working
with computers. Computers have of course the good speed for finishing a job
because it lets us get our job done quickly. It also has a very accurate
consistency because we can finish our job the way we want it to be finished.
They also have a very big memory compared to our short-term memory brain which
is not really as consistent.
Despite all these advantages, there are disadvantages to it
too. Spending too much time on a computer can cause health risks, like cancer.
People too who are too open on the internet, becomes violating their own
privacy, which then increases the danger of their own public safety.
5. What Is a Network, and What Are Its Benefits?
A network is a collection of computers who are connected in
one place with supporting devices where we can share resource. A network
usually has supporting hardware and software to share resources, files, data,
and information in one single place. A simple example would be the network in
Binus University.
6. How Are the Internet and World Wide Web Used?
The internet and world wide web is used to communicate
between one person and another which can be done with various programs like
LINE, Skype, and so on. Internet can also be used to access information and
news, which are often done to finish a homework, or project. We can also shop
online for goods or services. Banks nowadays also offer internet banking
service on the internet like BCA. We can also watch entertainment on sites such
as YouTube.
7. How Is System Software Different from Application
Software?
A system software is a series of instructions which are
related on to another for a common purpose. It tells the computer what actions
it should do, and how to perform them. Whereas system software consists of the
programs that control the operations of the computer itself, and its devices.
There are two types of system software: operating system and utility programs.
8. What Are the Differences among the Types, Sizes, and
Functions in the Following Categories: Personal Computers (Desktop), Mobile
Computers and Mobile Devices, Game Consoles, Servers, Mainframes,
Supercomputers, and Embedded Computers?
A Personal computer, or usually called PC, is a computer
that can perform most of the instructions like input, process, and output and
storage activities all by itself. A mobile computer is a personal computer
which you can carry easily to one place to another and very portable. A mobile
device is also like a mobile computer, only small enough to fit in the palm of
your hand. A game console is a computing device designed for a one player or
even multiplayer games. Servers controls access to its hardware, software and
resources on network, and has a storage area for its programs, data, and
information. A mainframe is a large, expensive, and powerful computer, which
can handle lots and lots of connected users at the same time, and can store
tremendous amounts of data. A supercomputer is known as the fastest, most
powerful, and expensive computer, usually used in big companies like FBI, etc
for applications which are complex, sophisticated and mathematical. An embedded
computer is a special purpose computer that functions as a component In a
product larger than itself.
9. What Is the Role of Each Element in an Information
System?
An information system is the combination of hardware,
software, data, people and procedures which can produce information in the most
efficient way possible. People in the IT department develop procedures which
processes the data. Following the procedures from the people from IT
department, people use hardware, and software to enter a data into a computer,
which is then processed by the computer and store changes on storage media with
the information in a desired form.
10. How Do the
Various Types of Computer Users Interact with Computers?
There are different types of computer users on the planet. A
home user is a family member who uses a computer for different reasons: it can
be for doing school work, financial management, accessing the internet, or even
for entertainment. A small office/home office includes a company with less than
50 employees, where they look up information and use basic business software.
Mobile users are people who work on a computer while away from a main office,
home office, or school. Power users exist in all types of business like, an
enterprise user works in or interacts with a company with lots of employees and
uses a computer or computer network powerful enough to process lots of
transactions per day.
11. How Does Society Use Computers in Education, Finance,
Government, Health Care, Science, Publishing, Travel, and Manufacturing?
Society use computers in education for learning, like online
classes, or sometimes help with doing school work. In terms of finance, people
can use the computer for doing online banking, or also do online investing
online on the internet. The government uses computers to provide the latest
information to their own citizens, they also use computers to help them with
their work. In health care, computers can be used to store the patients
records, monitor them, and deliver medication to nurse stations. They can also
be done to store the payment data of the patients. In science, computers are
very helpful in storing data, analyzing the data given, modeling the data into
a graph, or diagram, and they can be used to communicate with other scientists
or researchers around the world. Publishers use computers to assist them in
designing pages and they can post their work online too. Transportation use
online navigation (GPS) to help people travel more accurately and efficiently.
Manufacturers use computer-aided manufacturing to assist with manufacturing
processes.
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