(Paper 1, J277) OCR GCSE Computer Science: Computer Systems
A series covering the content needed for the J277 OCR GCSE 9-1 Computer Systems (01) exam. Hopefully this'll be useful for both learning the content and revising it.
Next GCSE exam: Thursday 18/5/23 (in the afternoon)
If you have any questions, please feel free to leave a comment or email me via the address listed on my channel page.
Curated by: MrBrownCS (42 videos)
Currently Playing: OCR GCSE Computer Science - J277 Paper 1 Introduction
Giving an overview of the first component of the OCR GCSE Computer Science specification (with the code J277/01). The video talks about the exam structure and my set of videos that cover it.
For the playlist for May 2022 only:
https://youtube.com/playlist?list=PL04uZ7242_M4UOWYBEQUTrXpzHBC8dHo7
For my full playlist that covers Paper 1 in all other years, please see here:
https://youtube.com/playlist?list=PL04uZ7242_M5KDdD9XnuWb2MNYsM57HpU
Other videos that might help:
How to revise Computer Science: https://www.youtube.com/watch?v=ky0Rc2V1rR8
How to improve exam technique: https://www.youtube.com/watch?v=mnKt9faL5MU
Tracks in this Playlist
- OCR GCSE Computer Science - J277 Paper 1 Introduction
- The CPU and Von Neumann Architecture
- Special-Purpose Registers (PC, ACC, MAR and MDR)
- Main Memory (RAM, ROM and Cache)
- Factors Affecting CPU Performance (Clock Speed, Cache & Multiple-Cores)
- Secondary Storage (Optical, Magnetic, Solid-State & Cloud)
- Embedded Systems and their Common Characteristics
- Introduction to Binary
- Converting Binary Numbers to Decimal
- Converting Decimal Numbers to Binary
- Hexadecimal Conversions
- Binary Addition
- Binary Logical Shifts
- Representing Text in Binary (ASCII & Unicode)
- Representing Images in Binary
- Representing Sound in Binary
- Lossy and Lossless (RLE) Compression
- Network Types and Performance
- Network Hardware (NIC, Switch, Router and WAP)
- Network Transmission Media
- The Internet and the World Wide Web
- Domain Name Servers (DNS)
- Star Topology
- Mesh Topology
- Network Protocols and the 4 Layer Model
- The Ethernet and WiFi Protocols
- TCP, IP, HTTP/S and FTP
- Email Protocols: SMTP, POP and IMAP
- IP Addresses vs MAC Addresses
- IP Address Standards: IPv4 and IPv6
- Cyber Threats To Systems Security
- Physical Security Measures & Biometrics
- Encryption
- Firewalls
- Protecting Against Malware
- Penetration Testing (White-box vs Black-box)
- Operating System (OS)
- Utility Software
- Ethical, Environmental, Cultural and Legal Issues of Computing
- UK Computing Laws
- OCR J277 GCSE Computer Science Sample Paper 1 Walkthrough
- OCR GCSE Computer Science Paper 1 in 30 mins