OCR GCSE Computer Science: Paper 1 Computer Systems
Computer Science
GCSE
Level 2
8 chapters
59 Lessons
7 Free lessons
Exam board-specific online course, featuring fast-paced tutorials taught by Mark, practice and test mode quizzing and checkpoint assessments preparing you for your Paper 1 examination. We recommend that you study The Roadmap course along with this GCSE. Click to find out more.
System Architecture

Computer architecture
Lesson (1/0) 1
What is a Computer?
Lesson (2/0) 2
Embedded and Non-embedded Systems

The CPU
Lesson (1/0) 1
Components of a Modern CPU
Lesson (2/0) 2
The Fetch Decode Execute Cycle
Lesson (3/0) 3
Performance of CPUs
Memory

Physical memory
Lesson (1/0) 1
RAM and ROM
Lesson (2/0) 2
Flash Memory
Storage

Secondary storage
Wired and wireless networks

Networks
Network topologies, protocols and layers

WiFi and Ethernet

TCP/IP Stack
System security

Social engineering and Network Vulnerabilities
System software

Operating systems

Utility software
Ethical, legal, cultural and environmental issues

Software sources and Stakeholders

Leglisation

The impact of technology on stakeholders
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