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ICT Keywords

Laptop Can be transported easily, used in many locations, but more expensive than a PC.
Network Server Stores data in a central location, allowing access to users across the network
Mainframe Large systems that store and process data centrally for the entire organisation, must be staffed by operators
Resolution The picture quality of the screen, larger screens have more pixels so better quality picture
Modem Allows connection to the internet via a telephone line.
Hardware Term used to describe the physical parts of a computer.
ICT Refers to all forms of electronic communication, as well as the processing of data by computers
PC Stands for Personal Computer, sits on the desktop usually.
PDA Personal Digital Assistant also known as a tablet.
Network PC Connected to a server and other computers.
Peripheral Device Any piece of equipment that is attached to the computer eg printer or scanner.
CPU Central Processing Unit is the 'brains' of the computer. It is constructed on a single chip called the microprocessor.
Clock Speed The speed at which the CPU can process information.
Megahertz (MHz) Clock speed is measured in MHz. Mega refers to million and hertz refers to frequency per second.
Gighertz (GHz) Giga refers to thousand million(billion) and hertz refers to frequency per second.
2.4GHz This processor is capable of 2,400,000,000 cycles per second!!!!!!!!!!
Accessibility Refers to how usable a system is by people with disabilities.
Input Device Any device that allows information to be entered into a PC by typing, importing or downloading.
Output Device Any device that allows results of the PCs processing to be seen or heard.
Ports The method by which an external input and output devices are connected to the PC.
Serial Port Transfers data in a single stream eg keyboards and mice.
Parallel Port Transfers data in several streams eg printers
USB Port Universal Serial Bus
FireWire Port Transfers data at high speeds eg audio and video use
Network Port A slot in the PC that the network cable is slotted into.
OCR Optical Character Recognition
OCR Software Allows scanned information to be converted into text files and edited.
Created by: Banagher13