J277 Study guides, Class notes & Summaries

a concise guide on all of paper 2 of the GCSE J277 OCR specification. a powerpoint broken down by topic covering all content. topics covered include: computational thinking, searching and sorting algorithms, programming fundamentals, data types, additional programming, defensive design methods, syntax and logic errors, boolean logic, languages and IDEs

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

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

J277 - UNIT 1.1 - SYSTEMS ARCHITECTURE EXAM 2024...

ocr GCSE Computer Science J277-02 June2023 Mark Scheme.

ocr GCSE Computer Science J277-01 June2023 Mark Scheme.

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

Stand alone computer : a computer that is not connected to a network What is a network? : a number of computers linked together to allow then to share resources (hardware, software and data) What are the advantages of networks? : - files can be stored in one place - can share hardware (printers) - share files - easy communication What are the disadvantages of networks? : - buying cabling and file servers can be expensive - danger of hacking 2 - viruses can spread to other computer...

2 © OCR 2023 1 Computers represent data in binary form. (a) Tick () one box to identify the statement about binary that is true. Binary digits can only be the values 0, 1 and 2 The left-most bit of a binary integer has the smallest value Binary is used because computers are made of switches that can only be on or off The smallest whole number that can be stored in 8 bits is the number 1 [1] (b) Complete the table by writing the missing denary, 8-bit binary or hexadecimal values. Denar...