2.1 Types of Software

Question 1

Open source software

Answer 1

the source code is made by the programmer and is available to anyone who wishes to debug, improve or modify

• free software
• flexible, changes can be made to meet specific needs

Question 2

closed source software

Answer 2

is protected by intellectual property rights and copyright
when purchasing this software you are purchasing a right to use it but you do not own it

• common software used on home or business computers

Question 3

off the shelf software

Answer 3

pre designed package

lots of user support

cheaper to build than bespoke software

e.g. word processing, spreadsheets

has a standard design and framework

Question 4

shareware

Answer 4

try before you buy
- cheaper than off the shelf
- widely available
- software is scanned by authors and shareware sites for viruses

Question 5

freeware

Answer 5

distributed free of charge
- right remain with write/publisher
- distributed without source code
- used for small / new businesses to use without additional software expenses
e.g. acrobat reader, itunes

Question 6

bespoke software

Answer 6

made to your exact requirements
expensive
limited user support
takes time to create
offers huge commercial and business benefits giving a competitive advantage

Question 7

embedded software

Answer 7

control machines or devices not typically considered a computer

• specialised for the hardware it runs on, can stand alone or interact with a larger system via a communication system like internet or bluetooth

e.g.
cars - anti lock brakes
washing machines
GPS