Creating a computer working model for an exhibition focusing on input and output devices using LED lights, cardboard, and color paper can be both educational and fun.
![](https://howtofunda.com/wp-content/uploads/2024/05/computer-working-model-for-computer-exhibition-diy-howtofunda-input-and-output-devices-with-led-lights-and-switches-post.png)
Here’s how you can do it:
Materials Needed:
- Cardboard
- Color paper (various colors)
- LED lights (different colors)
- Resistors (to limit LED current, if needed)
- Wires
- Batteries or a power source
- Switches (optional, for interactive elements)
- Glue
- Scissors
- Markers
Step by Step Video Instructions on computer working model:
- Prepare the Base:
- Cut out a large piece of cardboard to serve as the base for your model.
- Cover the cardboard with color paper to create a visually appealing background.
- Create Input Devices:
- Keyboard:
- Cut out a rectangular shape from cardboard to represent the keyboard.
- Use black color paper to cover the cardboard.
- Cut out small squares or rectangles from color paper to represent keys. You can use different colors for different key groups (letters, numbers, function keys, etc.).
- Write letters or symbols on each key using a marker.
- Mouse:
- Cut out a circular or oval shape from cardboard to represent the mouse.
- Cover it with gray color paper.
- Cut out two smaller circles from black paper for the mouse buttons.
- Attach these circles to the mouse.
- Other Input Devices (Optional):
- You can create additional input devices like a joystick, touchpad, or microphone using similar techniques.
- Keyboard:
- Add LED Lights for Output:
- Monitor/Display:
- Cut out a rectangular shape from cardboard to represent the monitor or display screen.
- Cover it with white color paper.
- Use markers to draw a screen frame and other details.
- Attach LED lights behind the screen to simulate pixels. You can use different colored LEDs to represent pixels (red, green, blue).
- Printer:
- Cut out a box-like shape from cardboard to represent the printer.
- Cover it with gray color paper.
- Draw details like paper trays and buttons using markers.
- Attach LED lights to simulate the printing process. For example, use yellow LEDs to represent paper feed and green LEDs to represent printing.
- Other Output Devices (Optional):
- You can create additional output devices like speakers, headphones, or projectors using LEDs and cardboard.
- Monitor/Display:
- Connect LEDs and Power Source:
- Connect the LEDs to the power source (batteries or power adapter) using wires.
- Use resistors to limit the current to the LEDs if necessary.
- Arrange the LEDs behind the input and output devices to create the desired lighting effects.
- You can use switches to control the LEDs, making some parts of the model interactive.
- Display Your Model:
- Once everything is assembled and connected, display your computer working model at the exhibition.
- Consider adding labels or signs to explain each device and its function.
- Encourage visitors to interact with the model and learn about input and output devices.
This DIY computer working model effectively demonstrates the functions of input and output devices in a fun and interactive way. It’s a great educational tool for exhibitions or classroom demonstrations!