Input and Output Devices
1. List the Disadvantages of CRT Monitor.
Answer:
Some of the disadvantages of CRT Monitor are :
- High power consumption
- Big back and take up a lot of desk space.
- Because it is less bright than an LCD, it is not ideal for excessively bright environments.
- They’re big, heavy, and clumsy.
2. Compare Input & Output Devices.
Answer:
| Input Device | Output Device |
|---|---|
| Data is accepted by the user of the device | It shows the data after processing to the user |
| It accepts the user’s data and transmits it to the processor for saving in the secondary memory or processing. | It receives the data from the processor and returns it to the user |
| More complex designing | Less complex designing |
| These devices are used to accept the data | These devices are used to display or show the data |
| Example: Keyboard, mouse, etc | Example: Monitor, Printer, etc |
3. What are the types of flat-panel displays?
Answer:
There are 2 types of flat-panel displays, which are described below.
- Emissive Display: Devices that turn electrical energy into light are known as emissive displays. For example, LEDs, Plasma panels, thin film electroluminescent displays, etc.
- Non-Emissive Display: Optical effects are used in Non-Emissive displays to turn sunshine or light from another source into graphical patterns. LCDs are a good example (Liquid Crystal Devices).
4. Explain the output device: Plotter.
Answer:
A plotter is a device that prints graphics in a variety of color formats with high-quality images. It’s similar to a printer but with more advanced capabilities. Plotter allows us to create pictures, 3D postcards, advertising signs, charts, and various designs of the internal structure of building machines, as well as print large maps, architectural drawings, large-format printing, and create pictures, 3D postcards, advertising signs, charts, and various designs of the internal structure of building machines.
5. Compare Impact & Non-Impact Printers.
Answer:
| Impact Printers | Non-Impact Printers |
|---|---|
| Slow Speed | Fast Speed |
| Makes a lot of Noisy | They are less Noisy |
| Cheap | Costly |
| Poor quality as compared to non-impact printers | Good quality printing |
| It works by hammering a set of metal pins or a character set into the paper | Ink is deposited in several forms during printing |
Input and Output Devices
An input/output device, often known as an IO device, is any hardware that allows a human operator or other systems to interface with a computer. Input/output devices, as the name implies, are capable of delivering data (output) to and receiving data from a computer (input). An input/output (I/O) device is a piece of hardware that can take, output, or process data. It receives data as input and provides it to a computer, as well as sends computer data to storage media as a storage output.