From the the user's point of view - the bar-code reader is much simpler to use. You simply point the reader at the bar-code - and it scans the sequence of black & white lines, sending data to a computer - which tells the user what the product is.
With a keyboard, you would have to enter the long string of numbers printed under the bar-code - which not only takes more time - but could be entered wrongly.
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Yes
It puts information into computer
Yes it is... It's sole purpose is to scan the bar-code, and convert it into data for processing by either the device itself - or a computer.
Yes it is... It's sole purpose is to scan the bar-code, and convert it into data for processing by either the device itself - or a computer.
A keyboard is an input device. You input information by typing.A keyboard is an input device.
Yes, a keyboard and mouse are both input devices.
no, it is an input device, but you cannot store any date in a keyboard itslef
Keyboard, Bar-code Reader, biometric authentication device
Keyboards are an input device. Anything that collects information from outside the machine, but specifically for the machine is an input device (mouse, keyboard, scanner, etc)
Keyboard, Mouse, Barcode Reader, Scanner - any device that takes user input.
it is an input
A printer is an output device. The keyboard is an input device.
That would be a keyboard
biometric authentication device digital camera
Input device
The Keyboard is an Input Device. It is used to enter text and utilise commands. It is a peripheral.