Chapter 1 Digital Technologies

Question 1

What is a Computer?

Answer 1

• It is an electronic device that manipulates information or “data”
• It has the ability to store, retrieve and process data

Question 2

What are the 3 types of computer

Answer 2

1. Analog Computers
2. Digital Computers
3. Hybrid Computers

Question 3

These type of computers can perform several mathematical operations simultaneously.

Answer 3

Analog Computers

Question 3

These type of computer are almost extinct.

Answer 3

Analog Computers

Question 4

These Type of computer uses continuous variables for mathematical operations and utilizes mechanical or electrical energy.

Answer 4

Analog Computers

Question 5

With these types of computers, operations are on electrical input that can attain two inputs: States of On=1 and state of OFF = 0.

Answer 5

Digital Computers

Question 6

What are the five(5) Categories of Computer

Answer 6

1. Mainframe Computers
2. Microcomputers
3. Minicomputers
4. Supercomputers
5. Wearable Computers

Question 6

These type of Computer is a combination of both digital and analog computers

Answer 6

Hybrid Computers

Question 7

Give me the two(2) Classification of Microcomputers

Answer 7

1. Personal Computer or PC
2. Portable Computer

Question 8

These Computers are being used by large organizations for highly critical applications such as bulk data processing.

Answer 8

Mainframe Computers

Question 9

It is also known as the Personal Computer or PC

Answer 9

Microcomputers

Question 9

A Computer with a microprocessor and its central processing unit is known as a _____________

Answer 9

Microcomputers

Question 10

They are small enough to move easily from one place to another and they can operate on batteries.

Answer 10

Portable Computers

Question 11

These are also called mid-range computer systems or workstations,

Answer 11

Minicomputers

Question 12

The highly calculation-intensive task can be effectively performed means of ______________

Answer 12

Supercomputers

Question 13

These Computers can be worn and are often used in the study of behavior modeling and human health

Answer 13

Wearable Computers

Question 14

What is the difference between data and information?

Answer 14

Data is a representation of a fact, figure or idea. It can be a number, word, picture or sound recording.

Whilst, Information is data that has been organized or presented in meaningful fashion

Question 15

Enumerate the five(5) basic operations to transform raw input data to usable information for their users. Step by Step

Answer 15

Step 1: Input
Step 2: Storage
Step 3: Process
Step 4: Output
Step 5: Workflow Control

Question 16

It refers to a pattern or phenomenon in which two or more independent technologies are combined and constitute a new outcome.

Answer 16

Technological Convergence

Question 17

The method of entering data and instructions into your computer system.

Answer 17

Input

Question 18

save data and instructions in such a way that they are available for processing as and when necessary

Answer 18

Storage

Question 19

Doing arithmetic, and logical data operations in order to turn them into useful knowledge.

Answer 19

Process

Question 19

The method of creating useful information or outcomes for the user, such as a written report or a visual show.

Answer 19

Output

Question 20

It directs the way and order in which all of the above operations are performed

Answer 20

Workflow Control

Question 21

This area includes researching computer hardware and software systems and programming how computers communicate with each other.

Answer 21

Computer engineering (CE)

Question 22

People working in this field can design software, solve issues such as computer security threats, or develop better ways to manage data storage

Answer 22

Computer Science (CS)

Question 23

Those who work with IT systems are developing technological solutions to help businesses solve business challenges.

Answer 23

Information Systems(IS)

Question 24

They ensure that the technology infrastructure is in place to serve customers.

Answer 24

Information Technology (IT)

Question 25

This area includes writing software programs that could be created for a software manufacturer to sell to the public or that might require a personalized application written for a large company to be used in-house

Answer 25

Software Engineering (SE)

Question 26

Programming websites, creating text and visual content, demonstrating how clients can use techniques such as search engine optimization (SEO) to optimize site traffic, and using social media to advertise products and services are just a few examples of careers in this field.

Answer 26

Web Development

Question 27

Programmers involved in the development of mobile apps are designing applications for devices such as smartphones.

Answer 27

Mobile App Development

Question 28

A worker in this area helps to build and organize information databases. They ensure that the information contained in the database is accessible and functional

Answer 28

Database Administration

Question 29

People working in this field are helping monitor terrorists, working with law enforcement to apprehend suspect by pulling information from their computer hard drives, and guarding against identity theft and privacy infringement.

Answer 29

Cybersecurity