By knowing that they want to do.
What you need the computer for will determine what input devices you require.
Input from the user to the computer can come through many peripheral devices such as the keyboard, mouse, touch-screen, a modem or a web camera.
There are no inherent disadvantages in having or using an input device. As a matter of fact, there simply aren't any alternatives, so it would be largely irrelevant, anyway.
Input and output devices are hardware components that allow a computer to receive and process data, and provide the results of this processing to the user. Some examples of input and output devices available today include: Input devices: Keyboard, mouse, touchpad, touch screen, microphone, scanner, game controller Output devices: Monitor, printer, speakers, headphones, projector, touch screen These devices are available in a range of sizes, designs, and features to meet the needs of different users and applications. Some devices may be specialized for specific tasks, such as gaming or graphic design, while others may be more versatile and suitable for general use.
An input device is any peripheral used to provide data and control signals to an information processing system ... examples - mouse, keyboard An output device is any peripheral used to communicate the results of data processing carried out by an information processing system ... examples - printer, monitor, speaker
do you mean like the optimus maximus, where they charge a rediculous amount of money to make something look "cool" or are you refering to suff like multi-touch sensitive displays, the keyboard in a glove, the frogpad one handed keyboard, or computers that can read our minds?
why different user interfaces require the use of different types of input device
Navigator devices, for example in cars, are party zero-input interfaces. They do require input when determining where the user wants to go but after that the required input is taken directly from a sensor, such as GPS or GLONASS sensor.
most/all input devices are with a software called glovepie.
The difference is that an Non-Automated Input Device is used when the user is the source of input (e.g the data will be typed in or draw by the user), while Automated Input Devices are use in situations where the data is already prepare in a form which the input device can pick up and transmit directly into the computer.
Keyboard, Mouse, Barcode Reader, Scanner - any device that takes user input.
Input from the user to the computer can come through many peripheral devices such as the keyboard, mouse, touch-screen, a modem or a web camera.
Interactive input devices are those that give the user feedback as they are used to feed in data. An example is a touchscreen, which doubles up as an output device.
Its an output device. By visual display unit I assume you're referring to one of the following: a tv, a computer monitor or a laptop screen. All 3 are output devices. The difference b/w an input and an output device is simply user input. An input device receives input from a user, an output device does not. A mouse (receives user clicks), A microphone (receives user audio), a keyboard are input devices.
NET
Typically, input devices, or peripherals.
The keyboard memory function in electronic devices stores the user's input by recording the key presses and storing them temporarily in the device's memory. When the user wants to recall the input, the device retrieves the stored information from memory and displays it on the screen. This allows users to type, edit, and save text or commands on their electronic devices.
Storage devices are considered both input and output devices because they can receive data (input) from a computer system to store it for later use, and they can also provide data (output) back to the computer system when requested. For example, when you save a document to a hard drive, the hard drive acts as an input device by receiving the data. When you retrieve that document later, the hard drive acts as an output device by providing the data back to the computer system for display or processing.