Computer science paper 2
Data representation
Units of information.
Binary arythmatic.
Converting between number bases.
Character encoding.
Number bases
Representing images.
Representing sound
Data compression
Computer system
Classification of programming languages
System architecture
Software classification
Boolean logic
Networks
Wired or wirless.
Protocols
Main types of computer networks
TCP-IP 4 layer model.
Cyber security.
Cyber security threats
Methods to detect and prevent cyber security threats.
SQL
Relational database
Structured query language.
Ethical , legal and environmental.
Legal
Environmental.
Ethical
Hexadecimal is a form of data representation that consists of the denary digits of 0- 9 and also the alphabetical letters of A - F.
Demery , also known as base 10 , is used in the every day-to-day running. We use the 0-9 every day.
Binary , also known as base 2 is a form of data representation that consists of two values: 1 and 0. these two values are the least abstracted from that a computer can understand as a computer binary which are a representation of different voltage levels.
An image is a bitmap of an image stored as an array of pixels.
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