Ocr computer science Study guides, Class notes & Summaries

What is the purpose of systems software? Software designed to run or maintain a computer Describe the functionality of systems software. It controls the operations of computer hardware Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:01 / 0:15 Full screen What is an operating system? A piece of software responsible for running the computer, managing hardware, applications, users and resources What are the 5 things th...

OCR Computer Science GCSE //CPU EXAM WITH ANSWERS [100% PASS] CPU - Central Processing Unit executes instructions, processes data, fetches data and stores data into main memory once executed (performs the fetch decode execute cycle). It make a computer system function MAR - Memory Adress Register holds the address of the current instruction that is to be fetched from memory MDR - Memory Data Register holds the contents found at the address held in the MAR Main Memory/Primary Storage...

OCR Computer Science GCSE //CPU EXAM WITH ANSWERS [100% PASS] CPU - Central Processing Unit executes instructions, processes data, fetches data and stores data into main memory once executed (performs the fetch decode execute cycle). It make a computer system function MAR - Memory Adress Register holds the address of the current instruction that is to be fetched from memory MDR - Memory Data Register holds the contents found at the address held in the MAR Main Memory/Primary Storage...

A-Level OCR Computer Science (1.1.1) Exam 2024 Questions & Answers 100% accurate! CPU - ANSWERSCentral Processing Unit ALU - ANSWERSArithmetic Logic Unit CU - ANSWERSControl Unit PC (CPU) - ANSWERSProgram Counter ACC - ANSWERSAccumulator MAR - ANSWERSMemory Address Register MDR - ANSWERSMemory Data Register CIR - ANSWERSCurrent Instruction Register Define CPU - ANSWERSThe main processor in a computer system handling data and instructions. Define ALU - ANSWERSA circuit...

GCSE OCR Computer Science: Networks Questions with Correct Answers 2024/2025GCSE OCR Computer Science: Networks Questions with Correct Answers 2024/2025GCSE OCR Computer Science: Networks Questions with Correct Answers 2024/2025GCSE OCR Computer Science: Networks Questions with Correct Answers 2024/2025GCSE OCR Computer Science: Networks Questions with Correct Answers 2024/2025GCSE OCR Computer Science: Networks Questions with Correct Answers 2024/2025GCSE OCR Computer Science: Networks Question...

Networking - OCR Computer Science EXAM REVISED [100% PASS] Computer Network *Ans* A collection of computing devices connected so that they can communicate and share resources Wireless *Ans* A network connection made without physical wires Node (host) *Ans* Any addressable device attached to a network Data transfer rate (bandwidth) *Ans* The speed at which data is moved from one place to another on a network Protocol *Ans* A set of rules that defines how data is formatted and processed ...

PC Program counter, contains the address of the next instruction CIR Current Instruction Register: stores the address of the next instruction currently being executed and decoded MAR Memory Address Register, holds relevant memory address (to read from or write to) MDR Memory Data Register, stores data being transferred to and from memory, acts as a buffer ALU Arithmetic and Logic Unit, does all mathematical calculations and makes all logical decisions Accumulator A storage register ...

What is the purpose of systems software? - correct answer Software designed to run or maintain a computer Describe the functionality of systems software. - correct answer It controls the operations of computer hardware What is an operating system? - correct answer A piece of software responsible for running the computer, managing hardware, applications, users and resources What are the 5 things that operating systems are used for? - correct answer providing a UI, memory management/multi...

OCR Computer Science A Level - 1.3.2 Databases Correct Questions And Answers OCR Computer Science A Level - 1.3.2 Databases Correct Questions And Answers OCR Computer Science A Level - 1.3.2 Databases Correct Questions And Answers OCR Computer Science A Level - 1.3.2 Databases Correct Questions And Answers OCR Computer Science A Level - 1.3.2 Databases Correct Questions And Answers OCR Computer Science A Level - 1.3.2 Databases Correct Questions And Answers OCR Computer Science A Level - 1.3.2 D...

J276/01 COMPUTER SYSTEMSOCR COMPUTER SCIENCE (9-1) J276/01 COMPUTER SYSTEMS MOCK-PAPER QUESTIONS & MARKING SCHEME.latest 2024