IGCSE COMPUTER SCIENCE –
PRACTICE TEST QUESTIONS AND
ANSWERS
An interface - answer-two computer systems are able to communicate with each other
using
Embedded system - answer-system part of a larger mechanical or electrical system
Dedicated system - answer-system only has one specific task to do
General purpose system - answer-system used for many purposes such as web
browsing or games
Voip - answer-voice over internet protocol
Skype - answer-example of a voip
Alpha testing - answer-errors in software identified and removed inside an organisation
Beta testing - answer-errors in software identified and removed outside an organisation
Proprietary standard - answer-created and owned by a company, widely used, unofficial
standard
International organisation for standardisation - answer-iso
Microsoft word document format - answer-example of a proprietary standard
Industry standard - answer-technical standards used to specify hardware and software
Sata and usb - answer-examples of industry standards
De facto standard - answer-not approved officially, may be proprietary, most users use
them
Qwerty keyboard, .doc format - answer-examples of de facto standards
Open standard - answer-publically available, use at no cost
Html - answer-example of an open standard
A bit - answer-a binary digit is referred to as
PRACTICE TEST QUESTIONS AND
ANSWERS
An interface - answer-two computer systems are able to communicate with each other
using
Embedded system - answer-system part of a larger mechanical or electrical system
Dedicated system - answer-system only has one specific task to do
General purpose system - answer-system used for many purposes such as web
browsing or games
Voip - answer-voice over internet protocol
Skype - answer-example of a voip
Alpha testing - answer-errors in software identified and removed inside an organisation
Beta testing - answer-errors in software identified and removed outside an organisation
Proprietary standard - answer-created and owned by a company, widely used, unofficial
standard
International organisation for standardisation - answer-iso
Microsoft word document format - answer-example of a proprietary standard
Industry standard - answer-technical standards used to specify hardware and software
Sata and usb - answer-examples of industry standards
De facto standard - answer-not approved officially, may be proprietary, most users use
them
Qwerty keyboard, .doc format - answer-examples of de facto standards
Open standard - answer-publically available, use at no cost
Html - answer-example of an open standard
A bit - answer-a binary digit is referred to as
