Computer Science

the process of removing unnecessary details so that only the main, important points remain

a number assigned to the storage location so that it can be accessed

items of data that are next to each other

testing done by the programmer

data which can use any value in a continuous range

software designed to prevent, detect and remove malware

a small application or program created in the Java programming language that can be sent to a user along with the web page they have requested (e.g. applets of animations, word processors and games)

are end-user programs. Also called ‘apps’ or ‘applications’, they are written to be run by users to perform user-identified tasks. For example, for productivity or entertainment. They include word processor, spreadsheet, database, game and image editing software

the name for the data that is passed to a subroutine by the main program

a structure that contains many items of data of the same type. The data are indexed so that a particular item of data can be easily found

a program which translates assembly language into machine code

giving a variable a value

confirm that a user’s password has been entered correctly

the process of determining whether someone trying to log into the network is who they declare to be

the ability to act on their own without human input

the amount of data that can pass through the transmission medium per second. It is often called the bit-rate

a base 2 number system represents numbers using two different symbols. Each place value is two times bigger than the place to its right

a base 10 number system represents numbers using ten different symbols. Each place value is ten times bigger than the place to its right

testing done by a selected group of individuals to receive their feedback about how well the program works

A set of bits that represents a graphic image, with each bit or group of bits corresponding to a pixel in the image.

computers can only communicate directly in 0s and 1s; series of 0s and 1s represent the codes for various instructions and data

items of data are stored in leaves and the branch points are called internal nodes. In a binary tree, each node has at most two branches or children

a process that validates the identity of a user who wishes to sign into a system by measuring some unique, physical characteristic of that user such as fingerprints, eye scans, face recognition and voice prints

the Basic Input/Output System controls the computer when it is first switched on