Flashcards
Computer Science
Cards in this deck (37)
- 1Accumulator (AAC)Stores the results of any arithmetic or logical operations carried out by the ALU.
- 2AdwareSoftware that automatically displays advertising when a user is online.
- 3AlgorithmA series of steps designed to solve a mathematical or other program.
- 4Arithmetic and logic unit (ALU)Performs all the arithmetic and logical operations within the CPU.
- 5AnalogueContinuously changing values.
- 6Question TextAnswer Text
- 7ApplicationSoftware designed to carry out a useful real-world task.
- 8ASCII (American Standard Code for Information Interchange)A 7-bit code to represent a set of characters available to a computer.
- 9AssemblerSoftware that translates an assembly language program into machine code.
- 10AssignmentSetting the value of a variable or constant.
- 11BinaryA number system based on 2, using just two symbols: 0 and 1.
- 12BitBinary digit 0 or 1; symbol b.
- 13But depthThe number of bits used to store each sound sample.
- 14Boolean algebraA method for expressing mathematically a logic circuit.
- 15BusA part of the computer architecture that transfers data and signals between the components of the computer.
- 16ByteEight buts; symbol b
- 17Cache memorySpecial high-speed memory used by a computer.
- 18Central processing unit (CPU)Contains the control unit, ALU and cache memory.
- 19ChannelA communication link carried on any suitable medium such as a wire conductor, fibre-optic cable or wireless signal; for example a bit-stream can be sent between devices on a WLAN along a channel formed by a particular by a particular dub-frequency in a WiFi frequency band
- 20Character setThe complete set of characters available to a computer.
- 21Clock chipThe electronic device in a computer that controls the timing of signals.
- 22Colour dept (bit depth)The number of bits used for each pixel.
- 23Command lineThe place where commands can be giving to the operating system.
- 24CompressionReduction in file size to lessen download times and storage requirements.
- 25Computational thinkingApplying the methods of computer scientists of the problem solving.
- 26Computer architectureThe internal, logic structure and organisation of the computer hardware.
- 27ConstantA label referring to a location in memory containing a value that can be accessed but not changed by a program.
- 28Control unitWorks with the CPU to control the flow of data within the system and to decode instructions.
- 29Current instruction register (CIR)Stores the next instruction ready to be decoded.
- 30De-encapsulationRemoving the data from inside an encapsulated item.
- 31DeclarationIdentifying a variable, constant or array to a program so that the memory can be allocated.
- 32DefragmenterSoftware that brings together fragments of files on a disk and collects all the free space in one area.
- 33DenaryA number system based on 10, using ten digits:0-9
- 34Dual-core/quad-core processorA COU with multiple processors: dual-core has two;a quad-core has four.
- 35Embedded systemA computer system that forms part of an electronic device.
- 36EncapsulationEnclosing the data inside another data structure to form a single component.
- 37EthernetA set of standards used to connect devices in a LAN. Nowadays, it tends to use mainly UTO and fibre-optic links or WiFi standards. Ethernet networks split messages into units called frames. Ethernet is still widely used and provides reliable and high-speed links.