The following command words are taken from The Office of Qualifications and Examinations Regulation's (Ofqual) official list of command words and their meanings are relevant to this subject. Mainly useful for KS4 groups but can be used in KS3 as well . This website and its content is subject to our Terms and A start bit is used to signal the arrival of data & temporarily synchronise transmitter & receiver . 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. How easy it is to fix bugs, change parameters and respond to changing requirements. Only a short answer is required, not an explanation or a description. Measurement or assessment of the volume of data that a system will be required to process and store. https://www.aqa.org.uk/resources/science/gcse/teach/command-words, AQA is not responsible for the content of external sites. Those digits which carry meaning contributing to the accuracy of a number. An early or trial working version of the proposed system developed to test possible solutions. In some cases students might be asked to use their own knowledge and understanding. Tabulates the mappings (input symbol, current state) to (output symbol, next state, direction of movement) for all inputs. A glossary of computer and Internet terms with definitions that are easy to understand. A model of software deployment where an application is hosted as a service provided to customers across the Internet. Big Data: data in many forms such as structured, unstructured, text, multimedia. A set of attributes and tuples, modelling an entity (a table). A collection of tables which can be linked together by means of primary and foreign keys. GCSE Combined Science: Trilogy 8464; Command words . Combining a record with the procedures and functions that manipulate it to form a new data type; a class in OOP. Command words are the words and phrases used in exams that tell students how they should answer a question. Fixing bugs, changing parameters and responding to changing requirements. Software that becomes a service that is accessed over the Internet. Students should make something clear, or state the reasons for something happening. A formal model of computation that consists of a finite state machine (FSM) that controls one or more tapes, where at least one tape is of unbounded length (ie infinitely long). Use given data or information to obtain and answer. Using an algorithm and a key to convert encrypted message data into its plain text equivalent. n3 where k = 3 and n = 1, 2, 3, etc. Generates an output as processing takes place. The maximum number of significant digits that can be represented. Flashcards by Lyndsay Hope, updated 8 months ago 368 14 1 Description. A tree in which one vertex has been designated as the root and every edge is directed away from the root. Technical terms and definitions for the A Level Computer Science course. Credit belongs to the original authors, especially to Peter Day, from whose glossary most of the terms were collected. This requires the student to describe the similarities and/or differences between things, not just write about one. A pointer that does not point to anything, usually represented by Ø or –1. To make learning more fun and interesting, here’s a list of important computer science theories and concepts explained with analogies and minimal technical terms. A global wide area network that is formed from the interconnection of many other networks and that uses the TCP/IP protocol. The following terms and definitions were collected from the web sites. The 'solution' may be non-optimal. 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The abstraction is a representation of the problem that leaves out unnecessary detail. A series of numbers generated by computer with apparent randomness. Big Data: Data too big to fit into a single server, Big Data: streaming data, milliseconds to seconds to respond. 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. 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. The program will function reliably and not crash or go into infinite loops, even with incorrect inputs or unpredictable values. Technical terms and definitions for the A Level Computer Science course. Memory Buffer Register (MBR) Message data after it has been encrypted. Any language that a finite state machine (FSM) will accept. © AQA 2020, This website uses cookies to improve your experience. Computer terms, dictionary, and glossary. Taken to be the worst case complexity of the most efficient algorithm which solves the problem. The following command words are taken from The Office of Qualifications and Examinations Regulation's (Ofqual) official list of command words and their meanings are relevant to this subject. If the relationship is not inheritance and it is not aggregation then it is an association.

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