That's not compulsory
Pendrive is not a input device nor output device IT is STORAGE DEVICE. storage device, only data can be saved in pen drive.
A joystick is an input device. It receives input from the user in the form of it's operation which it then passes on to the computer. Speakers are an example of an output device. They receive no input from the user, and only output (sound in this case). You can think of an input device as something that gives the computer information. And an output device as something that receives information from the computer.
A microphone is a device with an electrical output. An acoustic wave is the input. Its only function is to 'capture' sounds and convert them into an electrical signal for processing by the computer.
input
When i did I.T. we always described monitors as output device not an input device. as it can not send information to the pc it only displays.
It is both. The output device shows you images on the screen, while the input device allows you to interact with objects on the screen (e.g., touch the screen to select an option).
A scanner serves as an input device only.
Scanners can only be used as an input device. They scan the image placed inside/ontop and digitalise it and display it on your computer screen. The only type of scanner that can output is an "all-in-one" scanner/printer that can print out the images you scan in or other images from your PC, but that is not technically a scanner, it is a scanner, printer combination. So no, Scanners can only be used as input devices.
I believe you are referring to the screen only. A touch screen works as a input and output device
A computer screen is only an input device if it works with Touch Screen Technology else its output only
Its more of an bidirectional device......it shows u the output graphic data as well as helps u select ur option.........
In the strictest sense, no. It is an output device only. However, touch screens are input devices, but some would say this is just the touch panel mounted on top of the screen - so the screen is an output device while the touch panel is a separate input device. They are integrated into one unit but do have separate connection to the computer. Some would say its it one unit that does both input and output since the touch panel is integrated. The case could be made for either really, its just semantics anyway. Also, some monitors have USB hubs built in, but these really just bridge the USB device and the USB controller in the PC with no actual processing of data, so really shouldn't be considered an input device either.