Devices that serve as both input device and output device are termed as I/O devices.
An example of input device is a keyboard. Using the keypad, a user types the data. A keyboard sends electrical signals to the computer system, which is essentially the input. The computer then interprets the signals so that the results can be displayed in the form of text on a monitor. In this example, the text is output. In an another example, a computer sends data to a printer and it generates a printed paper. Here, computer is the input device whereas printer is the output device. The input and output may vary in their nature and form depending upon the mechanism. For example, when a computer sends information into a printer as signals, the input is digitized information whereas its output is a tangible printed paper.
It is important to note that an input device e.g. a mouse or the keyboard of a computer can perform the function of sending information to a computer as input. However, these input devices cannot reproduce or receive any information from the computer as output. It is also noteworthy that the input or output classification of devices is relative to each other. This can be elaborated from the example of a USB inserted in the port of a computer and a lead connecting the computer to a printer. Here, while the computer serves as an output device for the USB in that it generates the signals, the computer plays the role of an input device for the printer because eventually, the text will be printed as output by the printer. A USB flash drive and a CD-RW drive are both examples of I/O devices as both can send as well as receive information from a computer.
To conclude, input devices send information into a system whereas output devices generate its results. Some devices can only be either input devices or output devices whereas others can be both. The status of a device as an input device or an output ...
Cite this document
(“Input and output devices Essay Example | Topics and Well Written Essays - 500 words - 1”, n.d.)
Retrieved from https://studentshare.net/information-technology/740776-input-and-output-devices
(Input and Output Devices Essay Example | Topics and Well Written Essays - 500 Words - 1)
“Input and Output Devices Essay Example | Topics and Well Written Essays - 500 Words - 1”, n.d. https://studentshare.net/information-technology/740776-input-and-output-devices.
is actually inefficient in the sense of being a good product. These include user friendliness, power consumption, allocation that leads to better efficiency in the long term, security and other goals. To understand why, it's important to consider the goals of an operating system.
In this regard the computer needs an operation system to achieve the following; Human interface The computer has to have a way of presenting this data to the human level in a language and a format which is understandable. The way the processor operates on data is not the way the human would be able to read or use the data.
Source data entry devices refer to the many forms of data entry devices that are not keyboards, including pointing devices, scanning devices, magnetic stripes, smart cards, voice recognition devices, audio input, video input, and digital camera. Data source is usually on magnetic media or paper or fed directly into the processor.
The PLC has the ability to be programmed for individualized tasks and is a versatile alternative to older hardwired relay arrangements. Its adaptability, size, and low cost have made the implementation of larger control systems possible.
The information given to the computer is called the input. The input is given by the input devices which help the user to interact with the computer. Output devices display the result after the computer
It is because of these two aspects of computers that there is a need to review what input and output in computer means in terms of processing, and its relevance in computing altogether.
Input is based on a number of devices that
In other words, raw data is given through inputs while finished data is obtained through outputs from a computer system. Various equipment are used for inputting data and to obtain the outputs from a computer system. Input and output equipment are
This is in order to be able to balance the production material and output material, especially in relation to emissions. If waste can be reused in the production process, it may not count as an output and can, therefore, assist in