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COMPUTER HARDWARE
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Computer Hardware refers to the physical components of a computer system—the parts you can touch and see. Here’s an overview of the most important types:
🔧 Main Components of Computer Hardware
1. Central Processing Unit (CPU)
- Often called the “brain” of the computer.
- Executes instructions and processes data.
- Measured in GHz (speed) and cores (number of processing units).
2. Motherboard
- The main circuit board.
- Connects and allows communication between all components: CPU, RAM, storage, etc.
3. Random Access Memory (RAM)
- Temporary memory used to store data currently being used.
- More RAM allows for smoother multitasking.
4. Storage Devices
- HDD (Hard Disk Drive) – Uses spinning disks; large capacity but slower.
- SSD (Solid State Drive) – Faster and more reliable, but more expensive per GB.
5. Power Supply Unit (PSU)
- Converts electrical power into usable power for the computer.
- Rated in watts (W).
6. Graphics Processing Unit (GPU)
- Handles rendering of images, videos, and 3D graphics.
- Important for gaming, video editing, and machine learning.
7. Cooling Systems
- Includes fans, heat sinks, and liquid cooling systems.
- Prevents overheating of components, especially the CPU and GPU.
🖥️ Peripheral Devices
Input Devices:
- Keyboard
- Mouse
- Scanner
- Microphone
- Webcam
Output Devices:
- Monitor
- Printer
- Speakers
Input/Output (I/O) Devices:
- Touchscreen
- External drives (USB, SSDs)
💡 Other Components
- Case (Chassis): The enclosure that houses the main components.
- Network Interface Card (NIC): Allows connection to the internet or local network.
- Sound Card: Enhances audio input/output capabilities.
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