Gcse ocr computer science - Study guides, Class notes & Summaries

OCR GCSE Computer Science J277/02 : Computational thinking, algorithms and programming Mark Scheme for June 2024

OCR GCSE Computer Science J277/01 : Computer systems Mark Scheme for June 2024

This is the final mark scheme

what is the purpose of the CPU? to process data by following the fetch-decode-execute cycle, it's incharge of searching, sorting, calculating and decision making what happens at the fetch stage? the CPU fetches data and instructions from RAM and then stores them in it's own temporary memory called registers Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:00 / 0:00 Full screen what happens at the decode stage? the CPU und...

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...

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...

Actual 2024 OCR GCSE Computer Science J277/02: Computational thinking, algorithms and Programming Merged Question Paper + Mark Scheme

Actual 2024 OCR GCSE Computer Science J277/01: Computer systems Merged Question Paper +Mark Scheme

INSTRUCTIONS • Use black ink. • Write your answer to each question in the space provided. If you need extra space use the lined pages at the end of this booklet. The question numbers must be clearly shown. • Answer all the questions. INFORMATION • The total mark for this paper is 80. • The marks for each question are shown in brackets [ ]. • This document has 20 pages. ADVICE • Read each question carefully before you start your answer.