Chapter 1 (Types and Components of computer systems)

Question 1

What is a Hardware?

Answer 1

Hardware is the physical components that make up a typical computer system.

Question 2

What is a Software?

Answer 2

Software is the control of a computer
system and process data. The software considered in this book falls into two
categories: applications and system

Question 3

What are the main components of a computer system?

Answer 3

the central processing unit (CPU)
internal hard disk drive or solid-state drive
random access memory (RAM)
read-only memory (ROM)

Question 4

What are application software?

Answer 4

Application software provide services that the user requires to solve a given task

Question 5

What are types of applicaion software?

Answer 5

» word processing
» spreadsheet
» database (management system)
» control and measurement software
» apps and applets
» video editing
» graphics editing
» audio editing

Question 6

What is a CPU (Central Processing Unit) ?

Answer 6

is the part of the computer that interprets and executes the commands from the computer hardware and software.

Question 7

What is non-volatile memory?

Answer 7

Memory that does not need power to retain information, it is not wiped when the computer is turned off.

Question 8

RAM is a non-volatile memory (True or False) ?

Answer 8

False

Question 9

What is a System software?

Answer 9

A System software is the software designed to provide a platform on which all
other software can run

Question 10

ROM used to store BIOS and other data needed at startup. (True or False)

Answer 10

True

Question 11

What are examples of a System software?

Answer 11

example:
» compilers
» linkers
» device drivers
» operating systems
» utilities

Question 12

What are Word processing?

Answer 12

Word processing software is used to
manipulate a text document, such as an
essay or a report. Text is entered using a
keyboard and the software provides tools
for copying, deleting and various types
of formatting. Some of the functions of
word processing software

Question 13

A ___________________ requires a user to type in instructions to choose
options from menus and opening software.

Answer 13

CLI ( Command-Line Interface)

Question 14

What are the functions of Word processing software?

Answer 14

Functions of Word processing include:

• creating, editing, saving and
  manipulating text
• copy and paste functions
• spell checkers and thesaurus
• import photos/images into a structured
  page format
• translation into foreign language

Question 15

What are Spreadsheet software?

Answer 15

Spreadsheet software is used to organise
and manipulate numerical data (in the
form of integer, real, date, and so on).
Numbers are organised on a grid of
lettered columns and numbered rows. The
grid itself is made up of cells, and each cell
is identified using a unique combination of
columns and rows; for example: B6. Some
of the functions of spreadsheets

Question 16

2 advantages of using CLI

Answer 16

(Any two of these)

• The user is in direct communication
  with the computer.
• The user is not restricted to a
  number of pre-determined options.
• It is possible to alter computer
  configuration settings.

Question 17

What are the functions of Spreadsheet software?

Answer 17

Functions of spreadsheet include:

• use of formulae to carry out
  calculations
• ability to produce graphs
• ability to do modelling and ‘what if’
  calculations.

Question 18

What is a Desktop?

Answer 18

it is a made up of separate monitor, keyboard, mouse and processor unit.

Question 19

3 disadvantages of a smartphone

Answer 19

(Any 3 of these)
» The small screens and keyboards make pages difficult to read.
» It is more difficult and slower when typing things when comparing to laptops and tablets.
» Web browsing and photography can quickly drain the battery.
» Memory size in most phones is not very large when compared to laptops
and desktops.
» Not all website features are compatible with smartphone operating systems.
» Because of their small size, it is much easier to lose a smartphone or for it to be stolen compared to laptops or desktops.
» The data transfer rate using mobile phone networks can be slower than with Wi-Fi.

Question 20

Difference between RAM and ROM?

Answer 20

RAM is volatile memory which mean i do not store memory permantly

Question 21

What is the difference between a tablet and a phablet?

Answer 21

• Phablets are slightly larger than Tablets.
• Phablets have more screen size and storage.

Question 22

What is a database?

Answer 22

A database (management system) is a software used to organise, manipulate and analyse data. A typical database is made up of one or more tables. Tables consist of rows and
columns. Each row is called a ‘record’
and each column is called a ‘field.’ This
provides the basic structure for the
organisation of the data within the
database

Question 23

What are the functions of a database?

Answer 23

Functions of database includes:

• ability to carry out queries on database
  data and produce a report (DBMS)
• add, delete and modify data in a table.

Question 24

What is a graphic editing software?

Answer 24

Graphics editing software allows bitmap
and vector images to be changed.
Bitmap images are made up of pixels
which contain information about image
brightness and colour. Bitmap graphics
editors can change the pixels to produce
a different image. Vector graphic editors
operate in a different way and do not use
pixels. This type of software manipulates
lines, curves and text to alter the stored
image as required. Both types of editing
software are chosen depending on the
format of the original image

Question 25

What are the uses of VR?

Answer 25

Uses of VR includes:

• In-depth home tours
• Immersive gaming experiences