topic 1

Question 1

What is input?

Answer 1

Data or instructions entered into memory of a computer

Question 2

What is output?

Answer 2

Data that has been processed into a useful form

Question 3

Types of storage (state 3)

Answer 3

Memory cards, USB flash drive, Cloud storage

Question 4

Analog signals are?

Answer 4

continuous and vary in strength and quality

Question 5

Digital signals are?

Answer 5

two states on or off

Question 6

The binary system use two unique digits what are they?

Answer 6

0 and 1

Question 7

two types of memory?

Answer 7

volatile memory and nonvolatile memory

Question 8

Buses are used to transfer bits from input devices to

Answer 8

memory to processor to memory to output

Question 9

Types of input devices

Answer 9

Keyboard, Pointing devices, Pen input

Question 10

Types of output devices

Answer 10

Printers, Projectors and speakers

Question 11

Types of app

Answer 11

Native, cloud, web and mobile app

Question 12

distribution to software?

Answer 12

Retail software, custom software and freeware

Question 13

Productivity software state 2

Answer 13

Presentation and spreadsheet

Question 14

examples of word processing

Answer 14

memo and letters

Question 15

Graphics and media software

Answer 15

Paint/image editing software, video/audio editing software

Question 16

Multimedia authoring software…

Answer 16

allows users to combine text, graphics and audio in an interactive application

Question 17

Website authoring software…

Answer 17

helps users to create business websites for variety of purposes

Question 18

a media player…

Answer 18

program that allows you to watch videos and view images on your mobile device or computer

Question 19

An augmented reality app…

Answer 19

overlays information on top of physical objects

Question 20

Virtual reality app…

Answer 20

provides an immersive user experience

Question 21

Types of communication devices

Answer 21

Switches, routers, bridges

Question 22

Types of transmission media

Answer 22

guided media and unguided media

Question 23

Whats under guided media?

Answer 23

Coaxial, Fibre optics and twisted

Question 24

Whats under unguided media?

Answer 24

Radiowaves, Microwaves and Infrared

Question 25

What under coaxial

Answer 25

Base band and Broad band

Question 26

Whats under twisted

Answer 26

Shielded and unshielded

Question 27

What is database

Answer 27

collection of data organised in a manner that allows access, retrieval and use of that data

Question 28

What is DBMS

Answer 28

Database management system

Question 29

What does DBMS do

Answer 29

Create a computerized database and add, modify and delete data

Question 30

Types of Languages

Answer 30

Procedural Language and object oriented programming language

Question 31

What is procedural language and give an example

Answer 31

programmers that writes instructions usig english like words. Javascript

Question 32

What is OOP and give an example

Answer 32

allows developers to implement in objects in a programs. Java

Question 33

Types of multimedia elements

Answer 33

Text and graphics

Question 34

Two types of graphics and what are they?

Answer 34

Bitmap - graphics made of little square called pixels Vector- made up of lines and curves

Question 35

bitmap images compressed in? few examples

Answer 35

JPEG, PNG and TIFF eg: microsoft paint and adobe photoshop

Question 36

Types of digital security risks

Answer 36

hacker, cracker, cyberterrorist

Question 37

Phases of SLDC

Answer 37

planning- analysis- design- implementation- support and security

Question 38

Other components in the system unit

Answer 38

Hard disk and SSD (solid state drive)

Question 39

Examples of Hard disk Advantages of SSD

Answer 39

Tracks and sectors More durable, longer life and lighter weight

Question 40

Functions of OS (Operating System)

Answer 40

manage programs and manages memory