Student of group 961-21 Babadjanov Jamshid English lesson Self studies

3. Touchscreen – The touchscreen is an electronic visual display that can be controlled only by just touching the fingers on the screen, that is, they can do their work. The user interacts more directly with such touch screen devices.

These devices input the instructions by our fingers and display the output data on the screen at the same time. Yes, you all know that smartphones, tablets, Ipads are touchscreen devices as well as they are I/O devices too.

4. Scanner – A scanner is a digital input device that is used to scan hard copy images, that printed text on paper, and then convert it to a digital format like PDF, jpg, etc. The way in which we use the printer to extract prints from in different colors.
Image scanners are used in a variety of applications such as designing, gaming, reverse engineering, and testing. It works similarly to a Xerox machine.
Since the document converts into a digital form so that it can store on the computer or can be edit, the possibility of errors in capturing by scanners has been reduced too.
5. Fax Machine – The fax machine receives the soft copy document and converts them into hard copy into a series of zeros and ones (also known as bit maps).
Fax has revolutionized the world of telecommunications by allowing the capture (input) and transmission (output) of document images, by receiving from the other side of the telephone line.

When the document receives from the other computer, the fax machine converts the received data and prints the image again. Thus it functions as both an input device and an output device at the same time.

Other inputs and output devices are CD and DVD drive, multifunctional printer, modem, digital camera, etc.