computer science keywords and definitions

Published by on November 13, 2020

A sequence of unambiguous instructions for solving a problem. It responds YES or NO when processing of the input data has finished. Message data after it has been encrypted. This requires the student to describe the similarities and/or differences between things, not just write about one. A collection of tables which can be linked together by means of primary and foreign keys. The number of bits transmitted per second. Credit belongs to the original authors, especially to Peter Day, from whose glossary most of the terms were collected. Generates an output as processing takes place. Use evidence from the information supplied to support an answer. The operation which contributes most to the total running time. An attribute in one table that is a primary key in another table. A first-in-first-out (FIFO) abstract data type. A measure of how economical an algorithm is with time and space. An FSM that has just one next state for each pair of state and input symbols. The apparent machine that the operating system presents to the user, achieved by hiding the complexities of the hardware behind layers of operating system software. Each class in the hierarchy implements the action in a way appropriate to itself. The study, planning and design of what happens when a computer and human work together. Below is a massive list of computer science words - that is, words related to computer science. When the array element with the largest possible index has been used, the next element to join the queue reuses the vacated location at the beginning of the array. Command words are the words and phrases used in exams that tell students how they should answer a question. A finite state machine that produces no output whilst processing. A pointer that does not point to anything, usually represented by Ø or –1. Only a short answer is required, not an explanation or a description. A model of software deployment where an application is hosted as a service provided to customers across the Internet. A study that investigates the potential of a new system. It can be represented as a Turing machine program. A diagram consisting of vertices, joined by directed edges. This website works best with JavaScript switched on. Relationship between two object types in which one object type has a component which is of the other type. An attribute or set of attributes which uniquely identifies a tuple. Glossary of Computer Related Terms. A program that manages the operation of a computer. A computer that uses the services provided by a server. A set of agreed signals, codes and rules to be used for data and information exchange between computers. Manage the storage of data. Combining a record with the procedures and functions that manipulate it to form a new data type; a class in OOP. An association or link between two entities. The dynamic nature of our site means that Javascript must be enabled to function properly. Building a working model, demonstration system, simplified version, rough copy or trial piece of software to help an analyst. An abstraction of an entity in the real world or in the problem that enables an automated solution. It replicates itself by attaching itself to other programs. Web technology that allows only the part of a web page that needs updating to be fetched from the web server. In addition, where necessary, we have included our own command words and their meanings to complement Ofqual’s list. A device that receives packets or from one host (computer) or router and uses the destination IP address that they contain to pass them correctly formatted, to another host (computer) or router. Any language that a finite state machine (FSM) will accept. Provide structured evidence to reach a conclusion. Memory space is only allocated when required at runtime. Based on AQA and BCS glossaries. Used to temporarily store data or control information. The number of neighbours for that vertex. A finite state machine (FSM)that determines its outputs from the present state and from the inputs. A property or characteristic of an entity (databases) or an object (OOP). Each element of a priority queue has an associated priority. A computer that provides shared resources to network users. A system that uses a single data channel system in which the whole bandwidth of the transmission medium is dedicated to one data channel at a time. Fixing bugs, changing parameters and responding to changing requirements. Mainly useful for KS4 groups but can be used in KS3 as well . Any type of local area network (LAN) in which the nodes (computers or computing devices, often portable devices) are not connected by wires but use radio waves to transmit data between them. A layer of software that allows application programs to call on the services of the operating system. Computer science has many sub-fields; some emphasize the computation of specific results (such as computer graphics), while others (such as computational … A sequence of edges that start and end at the same vertex and such that any two successive edges in the sequence share a vertex. A UTM, U, is an interpreter that reads the description of any arbitrary Turing machine M and faithfully executes operations on data D precisely as M does. The following article has a glossary list that will help you understand these difficult scientific terms and definitions at a glance.Just read on the following glossary to get a quick idea about some interesting terms. Trademarked IEEE 802.11 technologies that support wireless networking of home and business networks. When someone tries to get you to give them your personal information. A problem which can be solved, but for which no polynomial time solution (or better) has been found. A problem that has a reasonable (polynomial) time solution as the size of the input increases. Technical terms and definitions for the A Level Computer Science course. An approach that uses experience to make informed guesses that assist in finding a polynomial time solution to an intractable algorithmic problem. Mainly useful for KS4 groups but can be used in KS3 as well .

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