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Shihaam Abdul Rahman 2023-09-11 17:10:33 +05:00
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## Components of a Computer
1. **CPU**: Central Processing Unit - The "brain" of the computer.
2. **RAM**: Random Access Memory - For temporary data storage.
3. **Hard Drive**: Long-term data storage.
4. **Motherboard**: Connects all components.
5. **Power Supply**: Provides electrical power.
6. **GPU**: Graphics Processing Unit - Handles visuals.
7. **Input Devices**: Such as keyboard, mouse, etc.
8. **Output Devices**: Such as monitor, printer, etc.
9. **Cooling System**: Fans or liquid cooling.
10. **Case**: Encloses the components.
1. **CPU**: Central Processing Unit - The "brain" of the computer that performs calculations and logic operations.
2. **RAM**: Random Access Memory - Temporary data storage that is faster to read and write compared to hard drives.
3. **Hard Drive**: Long-term data storage, can be HDD or SSD.
4. **Motherboard**: The main circuit board connecting all components.
5. **Power Supply**: Converts electrical power to a format suitable for the computer.
6. **GPU**: Graphics Processing Unit - Handles rendering images and videos.
7. **Input Devices**: Devices like keyboards, mice, and scanners for user input.
8. **Output Devices**: Devices like monitors, printers, and speakers for displaying output.
9. **Cooling System**: Fans or liquid cooling to maintain optimal temperature.
10. **Case**: Houses and protects the components.
# Input and Output devices
## Input devices
In computing, an input device is a piece of equipment used to provide data and control signals to an information processing system, such as a computer or information appliance.Examples of input devices include keyboards, mouse, scanners, cameras, joysticks, and microphones.
## Input and Output Devices
### Types of input devices
#### Keyboards
#### Mouse/Touchpad/Track point
#### Scanners
#### Webcam/Cameras
#### Microphone
#### Joystick
### Input Devices
Input devices provide data and control signals to a computer. Examples include keyboards, mice, scanners, cameras, joysticks, and microphones.
## Output devices
Output devices in computing are hardware components that display or output data and information from a computer to the user or another system. Examples include monitors, printers, and speakers.
#### Types of Input Devices
- **Keyboards**: Text input
- **Mouse/Touchpad/Trackpoint**: Pointer navigation
- **Scanners**: Image input
- **Webcam/Cameras**: Video input
- **Microphone**: Audio input
- **Joystick**: Game control
### Types of output devices
#### Monitor
#### Speakers/Headphones
#### Printers
### Output Devices
Output devices display or output data from a computer. Examples include monitors, printers, and speakers.
# Storage
## Units of storage
- and speed
#### Types of Output Devices
- **Monitor**: Visual display
- **Speakers/Headphones**: Audio output
- **Printers**: Printed output
## Type of storage
- Magnetic Storage
- Optical
- Solid State
## Storage
# MAchine language
- Binary
### Units of Storage and Speed
- Byte, Kilobyte, Megabyte, Gigabyte, Terabyte
- RPM, Read/Write Speed
# networking explain
- Explain Protocols
- TCP
- UDP
- MAC Address
- IP/DNS
- Network ports
- Subnetting
- firewall usage
- other protocols ( HTTP, FTP, SSH, TELNET)
- OSI Model
- VPNs
### Types of Storage
- **Magnetic Storage**: HDD
- **Optical**: CD, DVD
- **Solid State**: SSD
# Operating System
- BIOS
- File system
- Kernel
- Drivers
- explamples of operating systems
## Machine Language
- **Binary**: The basic language of computers, consisting of 0s and 1s.
## Networking
# Troubleshooting Hardware
- RAM
- CPU
- MB
- PSU
### Explain Protocols
- Rules governing data transfer
# Troubleshooting Network
- OSI Model
#### Types of Protocols
- **TCP**: Reliable data transfer
- **UDP**: Faster but less reliable
- **MAC Address**: Hardware identification
- **IP/DNS**: Internet addressing
- **Network Ports**: Data pathways
- **Subnetting**: Network segmentation
- **Firewall Usage**: Security measure
- **Other Protocols**: HTTP, FTP, SSH, TELNET
- **OSI Model**: 7-layer model for networking
- **VPNs**: Virtual Private Networks for secure communication
## Operating System
- **BIOS**: Basic Input/Output System, the firmware for initializing hardware.
- **File System**: Manages how files are stored and retrieved.
- **Kernel**: Core part of OS, manages system resources.
- **Drivers**: Software to interface with hardware.
- **Examples of Operating Systems**: Windows, macOS, Linux
## Troubleshooting Hardware
- **RAM**: Check for faulty memory modules.
- **CPU**: Overheating or malfunction.
- **MB**: Motherboard issues.
- **PSU**: Power supply unit failures.
## Troubleshooting Network
- **OSI Model**: Use it as a framework for troubleshooting.