Computer virus – an unauthorized program that inserts itself into a computer system and then propagates itself to other computers via networks or disks.
CPU – central processing unit: the key component of a computer system, which contains the circuitry necessary to interpret and execute program instructions.
Cybersecurity – is the security of computers and users information.
D
Data – individual facts, statistics, or items of information.
DDoS – a method of attacking a computer system by flooding it with so many messages that it is obliged to shut down.
Debugging – to detect and remove defects or errors from.
Decimal – any number used in the decimal system.
Delay – the interval between one event and another.
Digital – using data in the form of numerical digits.
DNS Server – networking system in place that allows us to resolve human-friendly names to unique addresses.
Download – to copy or transfer (data or a program) into the memory of one computer system from a larger one.
E
Electronic devices – a device that accomplishes its purpose electronically.
Encode – to convert (a message, information, etc.) into code.
F
Fiber-optic cable – a glass or plastic fiber that has the ability to guide light along its axis.
Field – any number of columns regularly used for recording the information.
Formula – a formula is a spreadsheet data type that will calculate a result and display it in the active cell.
Function – functions are built-in formulas that are used to enter either commonly used or very complex formulas.
I
Information – important or useful facts obtained as output from a computer by means of processing input data with a program.
Input – data to be entered into a computer for processing.
Internet – a vast computer network linking smaller computer networks worldwide.
IP address – a code that identifies a computer network or a particular computer or other device on a network, consisting of four numbers separated by periods.
Italic – style of printing types in which the letters usually slope to the right.
L
Laptop – a portable computer, usually battery powered, small enough to rest on the user’s lap and having a screen that closes over the keyboard like a lid.
Latency – the time required online or in a network for the one-way or round-trip transfer of data between two nodes.
Loop – a series of instructions in a program, performed repeatedly until some specified condition is satisfied.
M
Modem – an electronic device that makes possible the transmission of data to or from a computer via telephone or other communication lines.