Input vs Output Devices and Inside the Data Processing

Input and output have become an important part of a computer's data processing. Without them, we can't even interact with our computers. But what are the differences between input and output devices? And how exactly data processing works?

If we look at the input and output processes, the differences are not that much. Input works by inserting command or calculation into the computer via a device, while output shows the result of the command or calculation you have entered. But if we look at its devices, there is much more to it. Input devices is more complex than output devices, because input devices need to send the command to the computer correctly. While output devices are controlled by the computer to just show the results. Input devices like keyboard, mouse, joystick, and touch screen have buttons and switches to insert commands, while output devices like monitor, printer, and projector have a dispensing area and screen to show the result.

Now let's take a deeper look at how data has been processed. Data processing runs in an iterative cycle consisting of six steps. First, the raw data needs to be collected based on how big the output will become. Second, the raw data will be checked and modified to a corrected form to prevent the data from errors. Next, the raw data will be modified again, so the raw data can be read by the computer. Then, the raw data will be processed into an output with algorithms inside the computer. After that, the result will be displayed in a readable form that can be stored and processed even further. And finally, the data will be stored for quick access to the data, this step also allows the data to be used for an upcoming input and redo the process cycle.