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1. May 2026 - OCR GCSE Computer Science (Full Paper 1)
This video contains all paper one (Computer Systems) topics from the J277 OCR GCSE Computer Science specification.
2. May 2026 - OCR GCSE Computer Science (Full Paper 2)
This video contains all paper two ('Computational thinking, Algorithms and Programming') topics from the J277 OCR GCSE ...
3. Operating Systems | 5.1 | OCR GCSE Computer Science | J277
This video explains an operating system and its key functions, including managing memory, peripherals, users and files and ...
4. Registers in the FE Cycle | 1.1 | OCR GCSE Computer Science | J277
An explanation of how each register is used in the fetch execute (or fetch decode execute (FDE)) cycle. The registers are the PC ...
5. The Internet | 3.1 | OCR GCSE Computer Science | J277
This video explains the internet and examines four key types of servers. It also explains web hosting. This video is based on the ...
6. Open Source Licence | 6.1 | OCR GCSE Computer Science | J277
This video explains what an open source software licence is, as well as the benefits and drawbacks of using one. This video is ...
7. DNS Servers | 3.3b | OCR A-Level Computer Science
This video explains what a Domain Name System (DNS) server is and the process taken to load a web page, including matching ...
8. Embedded Systems | 1.3 | OCR GCSE Computer Science | J277
An explanation of what embedded systems are, including their typical features. This video is based on the OCR J277 Computer ...
9. Hexadecimal to Binary [OCR]
An improved version of this video can be found here: ...
10. Common Protocols | 3.2 | OCR GCSE Computer Science | J277
This video explains the purpose of several common protocols, such as TCP/IP, HTTP/HTTPS, FTP, SMTP, POP and IMAP.
11. Binary to Denary | 2.4 | OCR GCSE Computer Science | J277
An explanation of how to convert from binary to denary. The video also explains a few things to be aware of for exam questions ...
12. Binary to Hexadecimal | 2.4 | OCR GCSE Computer Science | J277
An explanation of how to convert from binary to hexadecimal. This video is based on the OCR J277 Computer Science ...
13. Abstraction | 1.1 | OCR GCSE Computer Science | J277
This video explains what abstraction means, as well as providing some examples relevant to programming. This video is based ...
14. Binary Search | 1.3 | OCR GCSE Computer Science | J277
This video explains how a binary search works, with an example shown step-by-step. It also explains the advantages and ...
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Last Updated: August 11, 2026
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