- CPU-Centarl Processing Unit ALU-Arithmetic Logical Unit CU-Control Unit
- Computer memory hierarchy power speed cost size performance
- Primary Secondary Memory DVD HDD FDD Pen drive RAM ROM
- Volatile non-volatile memory types SRAM DRAM PROM EPROM
- HD Hybrid-Drive-Benefits-Diagram
- Hard Disk Lables
- Concept Map of Computer ICT
- Types of computer software- Application, Operating system ...
- Types of Computer Network Typologies - Star, Ring, Bus,Tree ...
- Computer Virus types, Anit-virus softwares, Security Threats and Cyber crimes
- Computer Health and Safety
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