{"id":141,"date":"2022-10-20T10:35:06","date_gmt":"2022-10-20T09:35:06","guid":{"rendered":"https:\/\/blogs.glowscotland.org.uk\/fi\/digital\/?page_id=141"},"modified":"2023-08-08T11:44:45","modified_gmt":"2023-08-08T10:44:45","slug":"second-level-glossary","status":"publish","type":"page","link":"https:\/\/blogs.glowscotland.org.uk\/fi\/compsci\/glossary\/second-level-glossary\/","title":{"rendered":"Second Level Glossary"},"content":{"rendered":"\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Binary (code)<\/td>\nA coding system using the binary digits 0 and 1 to represent a letter, digit, or other character in a computer or other electronic device<\/td>\n<\/tr>\n
Bit<\/td>\nA single unit of information used in computing and digital communications \u2013 8 bits in 1 byte. A binary bit is either a 1 or a 0<\/td>\n<\/tr>\n
Bluetooth<\/td>\nAllows the exchange of data over short distances from fixed and mobile devices<\/td>\n<\/tr>\n
Boolean<\/td>\nBoolean logic is a form of algebra in which all values are reduced to either TRUE or FALSE<\/td>\n<\/tr>\n
Byte<\/td>\nA byte is 8 bits<\/td>\n<\/tr>\n
CPU (Central Processing Unit)<\/td>\nOften known as the brain of a computer that interprets program commands and executes its instructions<\/td>\n<\/tr>\n
Forever Loop (Infinite)<\/td>\nA piece of code that will run continuously until the program ends as it does not have a functional exit<\/td>\n<\/tr>\n
Glitch<\/td>\nA sudden, usually temporary malfunction or fault of equipment or computer program<\/td>\n<\/tr>\n
IP Address<\/td>\nA computer’s unique address e.g.192.168.0.127 – This address is used by computers to communicate across a network<\/td>\n<\/tr>\n
LAN<\/td>\nA Local Area Network (LAN) is a network where the workstations are ‘close’ together. It is usually thought of as computers in the same room, or building or even in a number of buildings, which are next to each other<\/td>\n<\/tr>\n
Memory<\/td>\nThere are two main types of memory : Random Access Memory (RAM) – this is where the computer stores programs and files it is using at the moment \u2013 all data stored in RAM is lost when the device switches off. Read Only Memory (ROM) holds part of a program that starts running when a computer is switched on<\/td>\n<\/tr>\n
Mesh<\/td>\nA local network topology nodes (i.e. switches and routers) connect directly and non-hierarchically to as many other nodes as possible to efficiently route data to pc\u2019s on the network<\/td>\n<\/tr>\n
Nested Loop<\/td>\nA loop within a loop<\/td>\n<\/tr>\n
Network<\/td>\nTwo or more computers connected for the purpose of storing, sharing, and managing data i.e. the internet<\/td>\n<\/tr>\n
Packet<\/td>\nA block of data transmitted across a network<\/td>\n<\/tr>\n
Parallel Process<\/td>\nMultiple processes all running at the same time (simultaneously)<\/td>\n<\/tr>\n
Peripheral<\/td>\nAny input, output or storage device connected externally or internally to the computer’s CPU, such as a monitor, keyboard, mouse, printer, hard disk, graphics tablet, scanner, joystick etc.<\/td>\n<\/tr>\n
Pixel<\/td>\nThe basic unit of a digital image, representing a single colour or level of brightness<\/td>\n<\/tr>\n
Predict<\/td>\nTo make known in advance<\/td>\n<\/tr>\n
Router<\/td>\nNetwork hardware which forwards packets of data onwards to the most appropriate hardware to which it is connected allowing users to connect to a network<\/td>\n<\/tr>\n
Server<\/td>\nA computer or computer program which manages access to a centralised resource or service in a network<\/td>\n<\/tr>\n
Simultaneous<\/td>\nAt the same time<\/td>\n<\/tr>\n
Specification<\/td>\nA definition (layout, blueprint, design) of hardware or software<\/td>\n<\/tr>\n
Sprite<\/td>\nAn icon in a computer game which can be manoeuvred around the screen by means of a joystick, etc.<\/td>\n<\/tr>\n
Structure<\/td>\nAnything composed of organized or interrelated elements i.e. hierarchical file structure.<\/td>\n<\/tr>\n
Switch<\/td>\nPCs on a network are connected to a ‘switch’. A switch manages lots of connections with computers at the same time and lets them all communicate with the server<\/td>\n<\/tr>\n
Topology<\/td>\nThe arrangement of a network, including its nodes and connecting lines<\/td>\n<\/tr>\n
Variable<\/td>\nA way in which computer programs can store, retrieve or change data, such as a score, the time left, or the user\u2019s name<\/td>\n<\/tr>\n
Wi-Fi<\/td>\nA local area network (LAN) that uses high frequency radio signals to transmit and receive data over distances of a few hundred feet<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Binary (code) A coding system using the binary digits 0 and 1 to represent a letter, digit, or other character in a computer or other electronic device Bit A single unit of information used in computing and digital communications \u2013 8 bits in 1 byte. A binary bit is either a 1 or a 0 … <\/p>\n

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