2. INTRODUCTION
• What is Computer Hardware?
• Physical components that make up a computer system.
• Works together to execute programs and perform tasks.
• Includes input, output, processing, and storage devices.
3. MAIN COMPONENTS OF A COMPUTER
SYSTEM
• Central Processing Unit (CPU)
• Memory
• Storage Devices
• Input Devices
• Output Devices
4. CENTRAL PROCESSING UNIT (CPU)
•Function: The brain of the computer.
•Components:
•Control Unit (CU): Directs operations.
•Arithmetic Logic Unit (ALU): Performs calculations.
•Registers: Store temporary data.
•Clock Speed: Affects processing speed.
5. MEMORY
•Primary Memory (RAM):
•Temporary, volatile memory.
•Stores data currently being processed.
•Secondary Memory:
•Permanent storage (e.g., Hard Drive, SSD).
•Stores files and programs long-term.
6. STORAGE DEVICES
•Hard Disk Drive (HDD):
•Magnetic storage, slower than SSD.
•Used for long-term storage.
•Solid-State Drive (SSD):
•Faster, more durable than HDD.
•No moving parts, uses flash memory.
•Optical Discs (CD/DVD):
•Used for media storage and distribution.
•Flash Drives:
•Portable, USB-based storage.
7. INPUT DEVICES
•Keyboard: For typing input.
•Mouse: Point-and-click navigation.
•Scanner: Converts physical documents into digital format.
•Microphone: Captures sound input.
•Webcam: Captures video input.
8. OUTPUT DEVICES
•Monitor: Displays visual output.
•Printer: Converts digital data to physical form (documents, images).
•Speakers/Headphones: Produce audio output.
9. MOTHERBOARD
•Definition: The main circuit board that connects all hardware components.
•Functions:
•Houses the CPU, RAM, and other critical components.
•Provides connectors for input/output devices and storage.
•Contains the chipset, which handles data communication.
10. POWER SUPPLY UNIT (PSU)
•Function: Converts electrical power from an outlet into the form needed for the computer.
•Types:
•ATX: Standard PSU for most desktops.
•Laptop Power Adapters: Smaller, portable power supplies.
11. EXPANSION CARDS
•Graphics Card (GPU): Enhances visual performance for gaming, design, etc.
•Sound Card: Improves audio output quality.
•Network Interface Card (NIC): Enables network connectivity.
•Other Expansion Cards: For additional ports and features.
12. COOLING SYSTEM
•Fans: Prevent overheating by circulating air.
•Heat Sinks: Absorb heat from components.
•Liquid Cooling: Advanced cooling for high-performance systems.
13. TYPES OF COMPUTER SYSTEMS
•Desktop Computers: General-purpose, larger form factor.
•Laptops: Portable, compact systems.
•Servers: High-performance machines for managing networks and data.
•Embedded Systems: Specialized, dedicated hardware for specific functions (e.g., in cars,
appliances).
14. CONCLUSION
•Computer hardware is essential for the proper functioning of software and programs.
•Advances in technology continue to improve performance, efficiency, and portability.