Blockbusters.

Blockbusters

E P A K/L T F Q B M U H G/H R C N V/W I/J S D O X,Y,Z

Blockbusters

4 What A is…… A register in the CPU that stores data currently being used by the CPU Accumulator

2 What A is…… A device to produce physical movement based on output from a computer system Actuator

4 What A is…… A location in main memory used to store data or instructions Address

3, 7 What A is…… A series of steps designed to solve a mathematical or other type of problem Algorithm

2 What A …… Performs all the arithmetic and logical operations within the CPU ALU

4 What A is…… Referring to continuously changing values Analogue

2 What A is…… A logic gate that outputs 1 if both inputs are 1 AND

3 What A is…… A small application that performs one specific task Applet

3 What A is…… Application
Software designed to carry out a useful real-world task Application

7 What A is…… A logic gate that outputs 1 if both inputs are 1 ASCII

3 What A is…… Software that translates assembly language code into machine code Assembler

3, 7 What A is…… Assembly language
A low-level programming language that uses more memorable mnemonic codes and labels to represent machine-level code. Each instruction corresponds to just one machine operation Assembly language

7 What A…… Sets the value of a variable Assign

5 What A is…… A characteristic of an entity. It becomes a field in a data table Attribute

7 What A is…… Auto documentation
A system that tracks variables, modules and comments for maintenance purposes Auto documentation

2 What B is…… A pattern of thin and thick lines representing a number that can be scanned by a reader for input into a computer system Bar code

2, 4 What B is…… A system of numbers using only two digits, 0 and 1 (also called the base-2 system) Binary

1 What B is…… The code in which all data and instructions in a computer is stored. Made up of the digits 0 and 1 Binary code

2, 4 What B is…… The binary digit 0 or 1 Bit

4 What B is…… The space available for each sample, measured in kilobits per second (Kbits/s). (128 Kbits/s is 128 kilobits per second of sampled sound) Bit rate

2 What B is…… A method for expressing mathematically a logic circuit
Boolean algebra

7 What B is…… A value that can only be true or false Boolean

2 What B is…… Part of the computer architecture that transfers data and signals between the components of the computer Bus

2, 4 What B is…… 8 bits Byte

2 What C is…… Cache memory
Special high speed memory used by a computer Cache memory

2 What C is…… A device to capture still or moving images Camera

2 What C is…… A type of optical device with a capacity of 700 MB CD

7 What C is…… A single alphabetic or numeric unit Character

7 What C…… Uses the ASCII value to look up the character associated with a particular number CHR

3, 6 What C is…… Software or hardware that requests services from a server Client

2 What C is…… The electronic device in a computer that controls the timing of signals Clock chip

7 What C is…… The text area used to enter code into an IDE Code editor

4 What C is…… The number of bits used for each pixel or dot. The more bits the more colours that can be represented (also known as bit depth) Colour depth

3 What C is…… The place where typed commands are given to the operating system Command line

1 What C is…… A device that allows a computer system to "talk" to another system directly in binary code. Communication device

7 What C is…… Comparing the values of two items and returning TRUE or FALSE depending on the result of that comparison Comparison

3, 7 What C is…… Translation software that converts high-level source code into machine (object) code Compiler

6 What C is…… A reduction in file size to reduce download times and storage requirements Compression

2 What C is…… The internal, logical structure and organisation of the computer hardware Computer architecture

1 What C is…… The UK law that makes it illegal to hack into a person's computer and to deliberately disrupt someone else's computer Computer Misuse Act 1990

1 What C is…… All the parts that make a computer work, including the hardware, software and data. This may not be a traditional computer. Computer system

7 What C is…… Combining two strings into a single string Concatenation

6 What C is…… A store of information about devices on a network
Configuration table

7 What C is…… A label referring to a location in memory containing a value that can be accessed but not changed by a program Constant

2 What C…… Works with the CPU to control the flow of data within the system Control unit

2 What C…… Contains the control unit, ALU and cache memory
Central Processing Unit (CPU)

3 What C is…… Software developed specifically for one or a few customers Custom written

5 What D is…… The stored schema of a database Data dictionary

5 What D is…… The state of data being as it should be, reflecting reality Data integrity

1 What D is…… The UK law that tells organisations how they must protect the personal data of real people Data Protection Act 1998

5 What D is…… The unnecessary repetition of data Data redundancy

3 What D is…… Software that helps a programmer track down faults in a program Debugger

7 What D is…… A flow chart symbol used to show a decision stage, may be 'yes', 'no' or multiple values Decision

7 What D is…… Identifies a variable or constant or array to a program so that memory space can be allocated Declaration

4 What D is…… An instruction which is divided by the CPU into two parts - the operator and the operand Decode

1 What D is…… Something which is designed for one particular purpose
Dedicated

3 What D is…… A utility that brings together file fragments on a disk and collects all the free space in one area Defragmenter

4 What D is…… A system of numbers using ten digits, 0 and (also called the base-10 system) Denary

3 What D is…… A program that enables communication between a computer and a peripheral Device driver

1 3 What D is…… The process of arranging files and data bytes on a secondary storage device Disk organisation

6 What D is…… A human readable name for a resource on a network. It is changed to a numerical IP address by a DNS server. Domain name

2 What D is…… A CPU with two processors Dual-core

2 What D is…… A type of optical device with a capacity of 4.7 GB DVD

3 What E is…… Software used for entering source code when writing a program Editor

1 What E is…… A computer system that uses a large white board as an input/output device in a classroom Electronic whiteboard

1, 3 What E is…… A computer system that forms part of an electronic device Embedded system

5 What E is…… Something that we store data about in a database Entity

5 What E is…… A diagram that shows how different entities used in a database are connected Entity relationship diagram

1 What E is…… Issues concerned with whether something is good or bad for the environment Environmental issues

7 What E is…… Data that would not normally be expected such as the wrong data type Erroneous

7 What E is…… A system to warn of potential problems in the code
Error diagnostics

1 What E is…… Issues concerned with whether something is morally right or wrong in itself Ethical issues

7 What E is…… Data that is at the extreme limit of valid or invalid to check boundary conditions Extreme

6 What F is…… Automatic switching to a backup computer system in the event of system failure Failover

2 What F is…… The process of fetching instructions from the memory, decoding them then executing them so the CPU performs continuously Fetch-execute cycle

5 What F is…… A characteristic of something stored in a database Field

7 What F is…… Stored data on suitable media File

3 What F is…… Software and/or hardware that limits access to and from a computer system Firewall

3 What F is…… Software that is stored permanently in a device, such as control programs for devices Firmware

2 What F is…… Solid-state memory used as low-cost secondary storage in portable devices and as removable memory Flash memory

5 What F is…… Database consisting of only one table Flat file database

7 What F is…… A diagrammatic method of showing the structure and data flow to define a problem an its solution Flow chart

4 What G is…… 1024 megabytes Gigabyte

3 What G is…… A user interface that makes use of icons for interacting with the user Graphical user interface

4 What H is…… The base-16 number system Hexadecimal

3, 7 What H is…… A programming language that resembles a natural language. Each instruction translates to many machine instructions. It is problem based rather than machine based. High-level language

1, 6 What H is…… A text based system for defining web pages
Hypertext mark up language (HTML)

6 What H is…… A device for connecting multiple network devices in one segment Hub

6 What H is…… An item on a web page that directs the user to another location when clicked Hyperlink

3 What I is…… A picture on screen that represents a file, a program or an action Icon

7 What I is…… A resource supplied with high-level languages to help the programmer Integrated development environment (IDE)

5 What I is…… A sequential file that is accessed using an index, which is a separate file Indexed sequential file

1 What I is…… A hardware device used to input data into a computer system for processing Input device

3 What I is…… A set of commands that a processor can recognise and act upon Instructions

7 What I is…… Whole number, positive or negative, with no decimal or fractional part Integer

3 What I is…… The boundary between systems or between systems and humans Interface

3, 7 What I is…… Translation software that converts source code or user input into machine code which is immediately executed one instruction at a time Interpreter

3 What I is…… A signal to the operating system to stop what it is doing and perform a different task instead Interrupt

6 What I is…… A private data resource using the same technology as the internet, such as browsers and protocols Intranet

7 What I is…… Data used to test a program that should be rejected because it is 'out of range' Invalid

6 What I is…… A number that identifies a device on a TCP/IP network
IP address

1 What I…… Produces international standards for engineering, agriculture and medicine, as well as for information technology International Organisation for Standardisation (ISO)

7 What I is…… A group of instructions is executed repeatedly until a condition is met (also known as repetition or a loop) Iteration

1, 3 What K is…… The lowest level of an operating system that controls the hardware Kernel

2 What K is…… A device that uses labelled keys to enable data input into a computer Keyboard

2, 4 What K is…… 1024 bytes Kilobyte

6 What L is…… A network was confined to one location
Local area network (LAN)

3 What L is…… Software that combines together a number of separate object code files Linker

2 What L is…… A circuit made by combining a sequence of logic gates
Logic circuit

7 What L is…… When the logical structure of the program produces unexpected results Logic error

2 What L is…… A circuit that produces an output based on the inputs
Logic gate

3 What L is…… A programming language that is directed at controlling each machine operation Low-level language

3, 7 What M is…… Instructions in binary used by the CPU Machine code

2 What M is…… A secondary storage device using magnetised platters to store data and files Magnetic hard disk

4 What M is…… 1024 kilobytes Megabyte

4 What M is…… Information about the image data that allows the computer to recreate the image from the binary data in the file. This must contain the height and width in pixels and the colour depth in bpp (bits per pixel) Metadata

2 What M is…… A device for capturing sound Microphone

2 What M is…… A device that can display images and text Monitor

2 What M is…… The central printed circuit board (PCB) that holds the crucial components of the computer Motherboard

2 What M is…… A device that controls the movement of a pointer on screen, based on its own movement, and allows the user to select an object by pressing a button Mouse

7 What N is…… Structures inside other structures Nesting

4 What N is…… 4 bits or half a byte Nibble

2 What N is…… Data retained even when the power is turned off
Non-volatile

2 What N is…… A logic gate that outputs the opposite value to the input NOT

7 What O is…… The machine code produced by a compiler Object code

3 What O is…… Software that is aimed at many users and sold 'as is'
Off the shelf

5 What O is…… A relationship where one record in a table may have links to many records in another table One to many

4 What O is…… The part of the instruction that tells the CPU what to apply the operation to Operand

3 What O is…… The software that controls the hardware. It acts as an interface between the user and the hardware and also between applications and the hardware Operating system

4, 7 What O is…… A logical, arithmetic or comparison (function) used by the program that tells the CPU what to do Operator

2 What O is…… Secondary storage device using lasers to read (and write) data to a reflective surface: for storing files to be distributed or transferred or for backup of important files Optical disk

2 What O is…… A logic gate that outputs 1 if either, or both, of the two inputs are 1 OR

1 What O is…… A device that takes data which has been processed by the computer and translates it into a human readable form Output device

4 What O is…… When a number becomes too large to fit into the number of bits allocated, it is said to 'overflow' and some bits are 'lost' leaving an incorrect value Overflow

1 What P is…… A file standard that displays a document accurately on any computer platform Portable document format (PDF)

6 What P is…… A network arrangement where all computers are equal
Peer-to-peer

3 What P is…… A combination of hardware and operating system that supports the running of particular applications Platform

3 What P is…… An editor that automatically sets out program code in an easy to read way Pretty printer

2 What P is…… A device to produce physical copies of output from a computer system Printer

3, 7 What P is…… A program currently being executed or a flow chart symbol that defines any processing to be completed at that stage Process

3 What P is…… A stored set of instructions for a computer to execute
Program

4 What P is…… A register in the CPU that keeps the address of the next instruction Program counter

4 What P is…… A way of writing instructions for a computer to execute
Programming language

6 What P is…… A set of rules or standards that control communication between devices Protocol

7 What P is…… A method of describing an algorithm using structured English close to programming language Pseudocode

2 What Q is…… A CPU with four processors Quad-core

2 What R is…… The main memory of a computer that stores data, applications and the operating system whilst in use. When the power is turned off it loses its data. Random Access Memory (RAM)

4 What R is…… A graphics format consisting of a matrix of dots Raster

7 What R is…… A number that can have decimal or fractional parts Real

5 What R is…… All the data about one item, in a database Record

4 What R is…… A special fast access part of the CPU that stores data in use by the CPU Register

4 What R is…… The number of pixels or dots per unit, for example ppi (pixels per inch), often referred to as dpi (dots per inch) Resolution

2 What R is…… It uses radio frequencies to represent a number that can be scanned for input into a computer system RFID

2 What R is…… A store for data in a computer that cannot be overwritten. The data is always available and is not lost when the computer is turned off. Read Only Memory (ROM)

7 What R is…… Software to support the execution of programs
Run time environment

4 What S is…… The number of times the sound is sampled per second, measured in Hz (100 Hz is 100 samples per second) Sample rate

5 What S is…… Definition of a database Schema

2 What S is…… Non-volatile storage used to store programs and files that need to be kept even when the power is not on Secondary storage

7 What S is…… The pathway through a program is chosen by using a condition to decide on what instructions to execute next Selection

3 What S is…… The ability of a program to load itself. Some small devices load their applications directly without the need for a conventional operating system Self-booting

2 What S is…… A device that can detect physical conditions such as temperature, weight, light, sound, etc. Sensor

7 What S is…… A list of instructions to be carried out in order, one after another Sequence

5 What S is…… A serial file in order Sequential file

5 What S is…… A file of items one after another Serial file

3, 6 What S is…… Software that provides services to a client, or the hardware that is running it Server

3 What S is…… Software that provides a traditional text based interface to an operating system Shell

3 What S is…… The programs that run on a computer Software

3 What S is…… Formal methods to guide the writing of software
Software engineering

2 What S is…… Technology based on electronics with no moving parts, for example transistors and capacitors as used in memory chips Solid state

7 What S is…… The program written by the end user in a high-level language before it is converted to machine code Source code

2 What S is…… A device to output sound Speaker

3 What S is…… Malicious software that detects what a user is doing and sends the details back to the originator Spyware

1 What S is…… A device that stores data in binary form for use later
Storage device

7 What S is…… A chain of alphabetic and/or numeric characters String

6 What S is…… A device for connecting multiple network devices and multiple segments Switch

7 What S is…… When the rules of a language are broken by the program
Syntax error

1 What T is…… A set of standards that control how data is sent across networks TCP/IP (Transmission control protocol/internet protocol)

4 What T is…… 1024 gigabytes Terabyte

2 What T is…… A touch sensitive surface that allows the user to select, control or move objects by touching icons and symbols using fingers Touch screen

7 What T is…… A method of using data to check that a flow chart covers all possibilities correctly Trace

7 What T is…… A program to convert high-level or assembly-level commands into machine code Translator

3 What T is…… Harmful software that is disguised as something useful
Trojan

2 What T is…… A method for recording all the possible input combinations and determining the output for each Truth table

3 What U is…… The boundary between the computer and the user
User interface

3 What U is…… A small program designed to carry out a limited maintenance task Utility

7 What V is…… Data used in testing that represents normal data that could be expected Valid

5 What V is…… The process of checking data as it is input to ensure that it is reasonable Validation

7 What V is…… A label referring to a location in memory containing a value that can be accessed or changed by a program Variable

5 What V is…… The process of checking that data is true or correct
Verification

1 What V is…… A computer system that helps teachers by allowing them to provide learning resources to pupils and monitor their progress Virtual Learning Environment

2 What V is…… A section of the hard disk used as if it were RAM to supplement the amount of memory available to the computer - used when insufficient main memory to run the required program Virtual memory

3 What V is…… The process of discovering possibly harmful programs in a computer system Virus detection

2 What V is…… Data lost when there is no power Volatile

6 What W is…… A network that covers large geographical area
WAN (Wide areas network)

3 What W is…… Software (or the hardware that is running it) that handles requests to a website Web server

Blockbusters.

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