Computer Science GCSE Level 1 Key Terms

Java applet

• A program designed to be embedded into an HTML document, transferred over the web, and executed in a browser

• Any addressable device attached to a network

• a file that contains characters

• Layers of protocols that build and rely on each other

• All Options are incorrect

Logic diagram

• A graphical representation of the circuit; each type of gate has its own symbol
• An actual address in the main memory device
• The separation of the logical view of the control structure from its implementation
• The topmost directory, in which all others are contained
• All Options are incorrect

Node (host)

• The language used to create or build a webpage
• Any addressable device attached to a network
• The number of pixels used to represent a picture
• A program that inputs a program in a high-level language and directs the computer to perform the action specified in each statement
• All Options are incorrect

Ping

• Arithmetic logic unit
• A program used to test whether a particular network computer is active and reachable
• Developing a model of a complex system and experimenting with the model to observe the results
• a hypothetical machine designed to illustrate important features of the real machine
• All Options are incorrect

Router

• A structure showing the nested directory organisation of the file system
• Storing image information pixel by pixel
• A network device that directs a packet between networks towards its final destination
• The processor can of converting plaintext into cipher text
• All Options are incorrect

Keyword encoding

• Replacing a frequently used word with a single character
• The condition that occurs when the results of the calculations are too large to represent in a given machine; a situation where a calculated value cannot fit into the number of digits reserved for it
• a concentric circle on the surface of the disc
• using the test cases specified in a test plan to verify that the program outputs the predicted results
• All Options are incorrect

Mainframe

• A large, multi-user computer often associated with early time-sharing systems
• The register that contains the address of the next instruction to be executed
• Reducing the amount of space needed to store a piece of data
• The specific kind of information contained in a file, such as a Java program or Microsoft Word document
• All Options are incorrect

Track

• The act of breaking information down into discrete pieces
• a concentric circle on the surface of the disc
• The act of breaking information down into discrete pieces
• Using a webpage to masquerade as part of an authoritative system and trick users into revealing security information
• All Options are incorrect

Knowledge-based system

• Software that uses a specific set of information
• A unit of data sent across a network
• the rate at which data moves from the disk to memory
• Using a webpage to masquerade as part of an authoritative system and trick users into revealing security information
• All Options are incorrect

Machine language

• The language made up of binary coded instructions that is used directly by the computer
• A sequence of instructions written to perform a specified task
• The separation of the logical view of data from its implementation
• The speed with which data is moved from one place to another on a network
• All Options are incorrect