(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)

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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