The exam is worth 40% of your final mark so it’s important you gain every mark you can. It is multiple choice. Each question has 4 possible answers. You will be given a piece of informati

REPETITIVE STRESS INJURY    prevented by     - using wrist supports            - using ergonomically designed devices &n

This is simply the effect that information technology has on our everyday lives.

This is the decision of whether to convert a manual system into a system using information technology.

REAL TIME PROCESSINGReal-time uses on-line systems which are directly connected to a computer and under its control.    The computer is always ready for data to be input.   &n

The Purpose of Operating System software is to :    1. Control Hardware ( devices ) e.g. Mouse & printer drivers   2. Provide a "graphical user interface" between the

- high level programming languages are used to program - visual basic - making windows programs = object orientated language - HTML - hyper text mark-up language = the language of the

THE DATA PROTECTION ACTThis Law covers the storage of personal data about members of the public on a computer system.What is personal data? Information about yourself that you don't want other people

TYPES OF SOFTWAREGeneric software        - Word Processor        - SpreadsheetApplication software        - Li

What is the Internet? A network of computer networks that enables information to be exchanged and shared. How do I connect my PC to the Internet?    1. Purchase a modem to connect your PC to

LOCAL AREA NETWORKS ( LAN )Computers are connected together on one site using a cable such as ethernet The File server stores all programs and data. Relative Advantages of a LAN compared to stand alon

BAR-CODESBar codes are a series of parallel black and white lines used on food and other products such as books. The black and white lines represent numbers. A bar-code reader ( scanner ) is used to i

SENSORS   A sensor measures a physical variable such as heat or moisture.The value of the variable is then input into a CPU ( Central Processing Unit ) DATA LOGGING   Sensors mon

Zip Drive       - can have 100MB or 250MB of storage space            - they have the capacity of 72 floppy disks   &nb

There are two types of memory:1. Random Access Memory ( RAM )This stores tempory files and is where software is placed when it is loaded. A part of the RAM is allocated for the 'clipboard'. This is t

Hardware and peripherals are basically computer devices which add additional functionality to a PC.A Computer System is made up of a number of types of device. Computer devices are sometimes called P