# ICT Basic

# 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.

### Types of input devices
#### Keyboards
#### Mouse/Touchpad/Track point
#### Scanners
#### Webcam/Cameras
#### Microphone
#### Joystick

## 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 output devices
#### Monitor
#### Speakers/Headphones
#### Printers

## 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.
 
# Storage
## Units of storage
 - and speed

## Type of storage
 - Magnetic Storage
 - Optical
 - Solid State

# MAchine language
 - Binary

# networking explain
 - Explain Protocols
 - TCP
 - UDP
 - MAC Address
 - IP/DNS
 - Network ports
 - Subnetting
 - firewall usage
 - other protocols ( HTTP, FTP, SSH, TELNET)
 - OSI Model
 - VPNs

# Operating System
 - BIOS
 - File system
 - Kernel
 - Drivers
 - explamples of operating systems


# Troubleshooting Hardware
 - RAM
 - CPU
 - MB
 - PSU

# Troubleshooting Network
 - OSI Model