Chapter 1

Question 1

Data

Answer 1

Unprocessed item that includes numbers, images, text

Question 2

Information

Answer 2

Processed data that has meaning and can be read by people

Question 3

Information Processing cycle

Answer 3

Communication
l
Input — process — output
l
Storage

Question 4

Stage of information processing cycle

Answer 4

Input stage - computer receive data and instructions

Processing stage - computer process data into information

Storage stage - computer store data and information

Communication stage - computer share data and information with other

Output stage - computer show the information to people

Question 5

Components of a computer

Answer 5

Input device - key data and instructions (mouse, keyboard)

Output device - display data and information (monitor, speaker )

System unit - a case that contain and protect all the components of the computer (processor, RAM)

Storage - hold data and information (USB, cloud storage)

Communication devices - send data and instructions (modem, network card, router)

Question 6

Storage media

Answer 6

A physical materials a computer keep data information, programs and application

Examples: memory card, optical disc

Question 7

Storage device

Answer 7

A hardware that is used to write and read items to from a storage media

Example: memory card reader ,optical drive

Question 8

Hardware specifications

Answer 8

Detailed information about physical components and capabilities of a computer that includes the performance, features, and capabilities

Question 9

Hardware

Answer 9

Processor (CPU) -Qualcomm snapdragon 7/8 series

Graphics processing unit (GPU) -Adrenalin GPUs

Random access memory (RAM) - 6GB or 8GB

Storage -128GB or more

Display - FHD+ or QHD+ resolution

Camera -4k video recording

Battery - 4000mAh or more

Connectivity - fast charging, USB-C port

Question 10

Computer Software

Answer 10

A program that has a series of related instruction that tell the computer what tasks to do and how to do

Question 11

Categories of software

Answer 11

-System software (operating system, system utility)

-Application software

Question 12

System software

Answer 12

The program that control or maintain the operation of the computer

Question 13

Operating system (systems software)

Answer 13

Is a program that control all the activity among computer hardware device and allow user to run application software

Example: window, iOS, and android

Question 14

System utility (systems software)

Answer 14

Is used to perform task usually relate to managing device, media, and program

Example: personal firewall, anti-program, file manager

Question 15

Operating system Function

Answer 15

Start the computer
Manage program
Manage memory
Coordinate and config device(i/o)
User interface
Internet connection
Monitor performance
File management
Network
Security

Question 16

Applications software

Answer 16

Consist of program design to make sure more productivity and let user with personal task

Example of application category
-Productivity application
-Graphics and media application

Question 17

Type of productivity application

Answer 17

Word processing -document containing mostly text and graphic (Microsoft Word)

Presentation -create visual for presentation to communicate message and other information (Microsoft PowerPoint)

Spreadsheet -organise the rules and column and perform calculation on data (Microsoft Excel)

Project management -plan schedule track and analyse event resource and cost of a project (Microsoft Project)

Accounting -record at report financial transaction of a business (Microsoft office accounting professional)

Question 18

Types of graphic and media application

Answer 18

Computer-Aided design -create engineering architect and scientific design and model (AutoCAD)

Desktop publishing -Publication that contain tax graphic and many colour such as textbook (Microsoft publisher)

Drawing/vector graphic - Draw and modify picture shapes and graphics (CoralDRAW)

Photo editing - edit and customise digital photos such as touching photo editing special effect (GIMP)

Video editing - and special effect, edit video (windows movie maker)

Audio editing - produce to do quality soundtrack (Sony sound forge)

Question 19

Categories of computer

Answer 19

Desktop computer
Laptop and mobile device
Game consoles
Server
Supercomputer
Embedded computer

Question 20

Desktop computer

Answer 20

All in one desktop

Question 21

Laptops

Answer 21

Also call a notebook computer
Thin & lightweight
Easy transport

Question 22

Mobile device

Answer 22

Tablet PC
Handheld computer
Smart phone

Question 23

Tablet PC

Answer 23

Also personal computer
touchscreen
Smaller than a laptop

Question 24

Handheld computer

Answer 24

Is a computer small enough to fit in one hand

Question 25

Gaming consoles

Answer 25

Mobile device design for single player or multiplayer video game Is design specifically for gaming

Question 26

Server

Answer 26

A computer that can provide one or more service to other computer on a network at the same time

Question 27

supercomputer

Answer 27

Is the fastest, most powerful, And the most expensive computer Is usually used by NASA

Question 28

Embedded Company

Answer 28

A special purpose computer that function as a compartment in a large product Example in the car or a smart house

Question 29

Artificial intelligence

Answer 29

A computer that has the ability to perform us that typically required human intelligent Technology simulate human intelligence processes such as learning, reason, problem-solving, and decision making

Question 30

Advantage and disadvantage of using computer

Answer 30

Advantage - Speed, reliability, consistency, storage, communication. Disadvantage - health risk, violation of privacy, public safety, impact of labour force, impact of environment.