Any output device can do this. A monitor, a printer, or even speakers. Speakers might not "display" information, but their output is a result of processing as you put it.
Printer
The result of a computer's processing is known as "output."
what is the main processing device of a computer
Yes it is called processing
In the CPU, Central Processing Unit.
Input Device
Terminal
The result of processing data on a computer can be viewed on a display, monitor, screen, CRT, VDT, LED display, printer or be obtained by voice output.
Printer
A video card is a GPU (Graphics processing Unit) this is what displays everything you see on your computer monitor.
Input, Storage, Processing, and Output.
VDU (Visual Display Unit) displays output results of the processing done by the Processor in Human Readable Format.
"Computer displays and printers are classified as?"
Computer comprises of three Essential Units in its design. These are:Central Processing UnitInput UnitOutput UnitPeripherals are devices used for special purposes as an expansion to the computer.Monitor displays the processed results without which it would have been difficult to contol Computer but anyhow it can be called a peripheral device because its perpose is to show off the processed data (output) on display.
Data is typically processed in the central processing unit (CPU) of the computer. The CPU receives instructions and data from the computer's memory, processes them using arithmetic and logic operations, and then sends the results back to the memory for storage or further processing.
An output is something you plug in and something comes out of it. Computer hardware equipment used to communicate the results of computer processing, carried out by an information processing system on the outside world (such as computer).
main processing device on a computer