CAT Grade 12 Theory summary
questions with verified
answers solutions lattest
update 2025/2026 graded a+
3G/4G
Generations of mobile (cellular) phone technology that consists of a high—tech infrastructure of
networks and web 3G/4G-enabled handsets such as cell phones and smartphones. 4G is also known as
LTE.
Acceptable Use Policy (AUP)
A policy which outlines the rights and responsibilities of its users, especially in networked environments.
Accessories
A number of useful programs come bundled with most operating systems. These are programs that are
not specifically aimed at the core functioning of the operating systems. Examples include the Calculator
and Snipping Tool utilities.
,ADSL (Asymmetric Digital Subscriber Line)
A permanent digital connection to the Internet using a telephone line.
Adware
Software that downloads and bombards your computer with adverts that pop-up whenever you are
connected to the internet.
Anti-virus software
Computer programs that scan computer files for viruses and eliminate them.
App Store
An online store that sells software for use on smartphones and consumer tablets. Such a store greatly
simplifies buying. installing and updating software.
Applications software
A group of programs that perform specific tasks for us as users.
Audio files
Files that contain sound or music. Common audio file formats include mp3, mp4, wav, cda, wma.
, Authoring software
Software used to create multimedia products.
Backup utility program
A specialised utility program used to make sure that all your files are backed up correctly.
Backup
Making a copy of files with the aim of having extra copies of the files in case they disappear or get
damaged for one or another reason.
Bandwidth
The total amount of data that can be transferred one point to another in a given period of time.
Barcodes
Machine readable codes attached to goods. Scanners scan the code and give meaning to the sets of
lines.
Biometric identification
The use of technology that measures/scans something biologically unique to each person, such as a
fingerprint or the pattern of the iris of an eye, for identification purposes.
questions with verified
answers solutions lattest
update 2025/2026 graded a+
3G/4G
Generations of mobile (cellular) phone technology that consists of a high—tech infrastructure of
networks and web 3G/4G-enabled handsets such as cell phones and smartphones. 4G is also known as
LTE.
Acceptable Use Policy (AUP)
A policy which outlines the rights and responsibilities of its users, especially in networked environments.
Accessories
A number of useful programs come bundled with most operating systems. These are programs that are
not specifically aimed at the core functioning of the operating systems. Examples include the Calculator
and Snipping Tool utilities.
,ADSL (Asymmetric Digital Subscriber Line)
A permanent digital connection to the Internet using a telephone line.
Adware
Software that downloads and bombards your computer with adverts that pop-up whenever you are
connected to the internet.
Anti-virus software
Computer programs that scan computer files for viruses and eliminate them.
App Store
An online store that sells software for use on smartphones and consumer tablets. Such a store greatly
simplifies buying. installing and updating software.
Applications software
A group of programs that perform specific tasks for us as users.
Audio files
Files that contain sound or music. Common audio file formats include mp3, mp4, wav, cda, wma.
, Authoring software
Software used to create multimedia products.
Backup utility program
A specialised utility program used to make sure that all your files are backed up correctly.
Backup
Making a copy of files with the aim of having extra copies of the files in case they disappear or get
damaged for one or another reason.
Bandwidth
The total amount of data that can be transferred one point to another in a given period of time.
Barcodes
Machine readable codes attached to goods. Scanners scan the code and give meaning to the sets of
lines.
Biometric identification
The use of technology that measures/scans something biologically unique to each person, such as a
fingerprint or the pattern of the iris of an eye, for identification purposes.
