Ocr compute Study guides, Class notes & Summaries

What is Data Protection Act 1998? 1. Controls the use of personal data 2. When collecting personal data, they need to register with the government. 3. Say what they'll collect and how they will use it 4. Data subjects have the right to see personal data that an organisation holds about them. 5. Exceptions are when it affects national security, tax assessment or outcome of a court case What are the 8 principles of the Data Protection Act? 1. Fair and lawful way. 2. Adequate...

AS Level Computer Science H046/01 Computing Principles

What does the CPU stand for? The Central Processing Unit. What is the CPU? The brain of the computer system. Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:01 / 0:15 Full screen What does the CPU do? Process all the data and instructions that make the computer system work. What does the processing power of a CPU depend on? It's: -Clock speed -Number of cores -Cache size What does the CPU architecture de...

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...

CPU - ANS>Central processing unit processes and executes data and instructions. carries out the FDE cycle CU - ANS>Control Unit, controls the flow of data in the CPU controls registers and busses. decodes instructions and manages execution. Control Bus - ANS>sends signals throughout processor used to transmit commands timings and status of components Data bus - ANS>Transfers data between memory and components Address bus - ANS>moves address between pc, cir, mar and memory ...

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

OCR Computer Science Paper 1 Questions with Verified Answers 2024/2025OCR Computer Science Paper 1 Questions with Verified Answers 2024/2025OCR Computer Science Paper 1 Questions with Verified Answers 2024/2025OCR Computer Science Paper 1 Questions with Verified Answers 2024/2025OCR Computer Science Paper 1 Questions with Verified Answers 2024/2025OCR Computer Science Paper 1 Questions with Verified Answers 2024/2025OCR Computer Science Paper 1 Questions with Verified Answers 2024/2025OCR Comput...

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 that performs mathematical and logical (comparative) operations. Define CU - AN...

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 ...