Deck 1: Computers and Digital Basics

Question 1

Suppose that you walk into an office and see the devices pictured to the right. You would probably assume that they are the screen, keyboard, and mouse for a(n)
computer, workstation, or server.

Answer 1

Personal computer
A computer is electronic devices which takes input signal from user, process the signal and give result or response according to input. Generally a computer consists of three things: input device (like keyboard, mouse), CPU and output device (screen).
According to size, cost and capability computer is classified into personal computer, workstation, server and super computer.
A Personal computer is microprocessor based general-purpose computer which fulfill the basic computing need of person. It is very useful for the user with respect to its sizing and cost.
This computer is embedded with operating system having following qualities that is- Interactive, User friendly, Time sharing, Multiprocessing and Multiple user.
Therefore, the appropriate word to fill in the blank is Personal.

Question 2

List the four phases of the digital revolution.

Answer 2

not answer

Question 3

You receive an e-mail message asking you to join a circle of friends. You assume that the message was generated in conjunction with an online
network, such as Facebook, and if you become a member, you will be able to socialize online.

Answer 3

Social network
A Social network is a kind of network which provides the services and platform to build up social relation among various people. These networks consist of a representation of each user and their social links with other people and various other additional services.
These networks mainly use the internet as a means for interacting with other people. Facebook, Google+, Twitter, e-mail, and instant messaging are some of the social networking site design for the people to interact with each other. These people may or may not be known to each other.
Social networking sites allow user to share their ideas, pictures, posts, activities, event, and interest with people on their network.
Therefore, appropriate word to fill in the blank is Social.

Question 4

Define the term convergence and provide examples of at least five devices that are converging.

Question 5

You're planning a trip to Finland, but when you access the hotel site, the prices are listed in euros. To find the price in U.S. dollars, you access a currency converter from your portable phone. That's an example of
computing, representative of the fourth phase of the digital revolution.

Question 6

Describe at least two social, political, and economic effects of the digital revolution.

Question 7

You're visiting an antique shop and notice a collection of old-fashioned radios. They actually feature a dial for tuning in different radio stations. You immediately recognize this as a(n)
device because it deals with an infinite scale of values, rather than discrete values.

Question 8

Draw a diagram to explain how a computer makes use of input, processing, storage, memory, output, and stored programs.

Question 9

While attending a meeting at work, you hear one of the executives wondering if "unit code" would be helpful. After a moment of puzzlement, you realize that the executive really meant
, and that it would allow your company software to be translated into the Cyrillic alphabet used by the Russian language.

Question 10

Describe the difference between system software, an operating system, application software, and a computer program.

Question 11

You have a storage device that offers 2 GB of storage space. It is currently empty. Your friend wants to give you a large digital photo that's 16 MB. Will it fit on your storage device?

Question 12

List, briefly describe, and rank (in terms of computing capacity) the characteristics of each computer category described in Section B of this chapter.

Question 13

Your bank is giving customers the choice of using a fourdigit PIN or a password that can contain up to ten letters and numbers. The
is more secure, so that's what you decide to use.

Question 14

List the characteristics that handheld computers and dedicated handheld devices have in common with personal computers, and list factors by which they differ.

Question 15

You need to select a password for your online PayPal account. Which of the following passwords would be the LEAST secure: jeff683, hddtmrutc, gargantuan, fanhotshot, bb#ii22jeffry, or high348?

Question 16

Define the term microcontroller and provide three examples of devices in which microcontrollers are found.

Question 17

Explain the technical difference between data and information.

Question 18

Provide three examples of digital devices and three examples of analog devices.

Question 19

List the ASCII representation for B and the binary representation for 18; draw a stepped waveform showing a digital sound; and draw a diagram showing how color is represented in a graphic.

Question 20

List and define all the chapter terms, such as bit , byte , and kibibyte , that pertain to quantifying data.

Question 21

Use the terms integrated circuits , microprocessor , and system board in a meaningful sentence.

Question 22

Describe how compilers and interpreters work with high-level programming languages, source code, and object code.

Question 23

Make a storyboard showing how a microprocessor's ALU would add the numbers 2 and 8.

Question 24

Explain how hackers use dictionary and brute force attacks.

Question 25

Provide examples of five secure passwords and five passwords that might be easy to crack.

Question 26

Data
was the computing technology behind the first phase of the digital revolution.

Question 27

software refers to any software that is installed on a computer's hard drive.

Question 28

A computer
is a group of computers linked together to share data and resources.

Question 29

The process of converting text, numbers, sound, photos, or video into data that can be processed by a computer is called
.

Question 30

computing provides access to information, applications, communications, and storage over the Internet.

Question 31

A computer is a digital device that processes data according to a series
of instructions called a program or software.

Question 32

Computer data is temporarily stored in
, but is usually transferred to
where it can be left on a more permanent basis.

Question 33

computers are available in desktop and portable models.

Question 34

A digital device, such as a computer, is called a(n)
when it requests data from a server.

Question 35

A(n)
is a special-purpose microprocessor that is built into the machine it controls.

Question 36

Data
refers to the format in which data is stored, processed, and transferred.

Question 37

Digital devices often use the
number system to represent numeric data.

Question 38

Most computers use Unicode or Extended
code to represent character data. (Hint: Use the acronym.)

Question 39

KB is the abbreviation for
.

Question 40

Integrated circuits are fabricated from
materials that have properties of a conductor and an insulator.

Question 41

A(n)
converts all of the source code instructions into object code, which becomes a new file containing
code.

Question 42

A microprocessor is hard-wired to perform a set of activities called a(n)
set.

Question 43

A machine language instruction has two parts: a(n)
code and an operand.

Question 44

The ALU in your computer's microprocessor holds data in
.

Question 45

The microprocessor's control unit contains a(n)
pointer that holds the address of the instruction being executed.

Question 46

An authentication
is any method that confirms a person's identity using something the person knows, something the person possesses, or something the person is.

Question 47

On a(n)
-sensitive server, the user ID BJP is different than bjp.

Question 48

A(n)
attack can guess your password if you are using common passwords or everyday words.

Question 49

A(n)
scam looks like a request from your bank or an online payment service, but is actually a hacker who wants you to disclose your user ID and password.

Question 50

Most browsers include a built-in password
that remembers the user IDs and passwords you use when logging in to Web sites or online e-mail.