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Input devices - Coggle Diagram
Input devices
Mouse
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Advantages
- A very simple hardware to use
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Disadvantages
- Needs a flat surface and an area for efficient working
- The roller ball gets stuck with dirt
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Touch screen
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Advantages
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- combine both, input device and also a screen
Disadvantages
- Makes it difficult for accurate touch
- We can't select the options if the screen is cracked.
Keyboard
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Advantages
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- Inputting data is easy for people who are trained
Disadvantages
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- If a person is not trained, then the person will take time to input data.
Scanners
2D Scanners
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Advantages
- Flatbed scanners produce high quality documents
- The documents can be edited
- Can be attached to an email
Disadvantages
- Alot of memory space taked
- All the documents are in high quality, even the ones not required
- If the original copy isn't good, then the scanned one will be even worse
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Barcodes
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Advantages
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- Helps in keeping the
record of everything
Disadvantages
- If the code is not clear, rubbed off or
damaged, the code wont be read clearly
- If the data isn't recorded,
then the barcode wont be read.
QR codes
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QR codes are 2 dimensional, which means, they can be read horizontally and vertically
There are 3 squares in the corners of the code which help in telling the edges of the code and each square is called a module
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Advantages
- Can store variety types of information
- If the code is rubbed partly or damaged, the reader can decode it.
Disadvantages
- QR code aren't know to people
- People need the ability to be able to decode them using smartphones