- Study guides, Class notes & Summaries

PC - correct answer Program counter, contains the address of the next instruction CIR - correct answer Current Instruction Register: stores the address of the next instruction currently being executed and decoded MAR - correct answer Memory Address Register, holds relevant memory address (to read from or write to) MDR - correct answer Memory Data Register, stores data being transferred to and from memory, acts as a buffer ALU - correct answer Arithmetic and Logic Unit, does all mathe...

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17 pages

Written in 2023/2024

Grade A+

GRADEUNITS

Entity - ANSWERSA category of object, person, event or thing of interest to an organisation about which data is to be recorded Attribute - ANSWERSA named piece of data about a particular entity, with an associated data type. Also known as a field. Flat File database - ANSWERSDatabase consisting of tables which have no links to one another. Each table is entirely standalone. Primary Key - ANSWERSAn attribute which uniquely identifies each entity in a table. Secondary key - ANSWERSAn a...

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4 pages

Written in 2023/2024

Grade A+

papersmaster01

PC Ans: Program counter, contains the address of the next instruction CIR Ans: Current Instruction Register: stores the address of the next instruction currently being executed and decoded MAR Ans: Memory Address Register, holds relevant memory address (to read from or write to) MDR 2 | Page Ans: Memory Data Register, stores data being transferred to and from memory, acts as a buffer ALU Ans: Arithmetic and Logic Unit, does all mathematical calc...

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44 pages

Written in 2024/2025

Grade A+

Expert1

OCR EXAM BUNDLE(COMPLETE PACKAGE)A Level Computer Science Paper 2 Exam 2024Questions And Answers 100% Upated!OCR EXAM BUNDLE(COMPLETE PACKAGE)A Level Computer Science Paper 2 Exam 2024Questions And Answers 100% Upated!OCR EXAM BUNDLE(COMPLETE PACKAGE)A Level Computer Science Paper 2 Exam 2024Questions And Answers 100% Upated!OCR EXAM BUNDLE(COM

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