Computer Applications in Business

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What is the function of an input device?

The main function of an input device is to allow users to send and communicate various information. Keyboards, webcams, and speech recognition could all be called input devices, because a person can use them to transmit all kinds of data.

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The primary function of an input device is to send data and control messages to your computer. Think about your keyboard, for instance. You use it to enter data into the machine, typing words into a word processor or search engine, using short cuts to move you quickly from screen to screen, or issuing commands (like “control + s” to save or “control + c” to copy).

Your mouse or touchpad is another excellent example of an input device. Think about all the ways these gadget help you tell the computer what you want it to do. You can click open programs, issue commands, browse the Internet, and close windows, all the while controlling your computer often without even thinking much about it.

Other examples of input devices are your scanner (think about how much data you bring into your computer when you scan documents or pictures), your webcam (your image is data!), your microphone (your computer also translates the sound of your voice into data), the joystick you use to play games (and control the computer's response to various situations), your digital camera (as you transfer pictures onto your computer), or even your phone or tablet, if you link them to your computer to carry over documents or pictures.

An input device is part of a computer's hardware system, and it stands opposite to your computer's output devices (like a printer, monitor, and speakers), which allow you to access the data you've stored on your computer through your input devices.

Last Updated by eNotes Editorial on December 30, 2020
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The general function of any input device is to transmit coded information from the "peripheral" device or application to the computer's operating system, in order to execute a command response or to share and exchange data.

Most input devices on the consumer and office level are hardware dedicated to memory storage and retrieval, like flash drives or external hard drives. Others could be cameras, musical instruments, keyboards, mice, microphones for creative or productivity tasks like word or data processing, graphic design, desktop publishing, or video or audio production and editing. Nowadays, wireless interfaces and voice activation have transformed the dynamics of input, but not the essential function. Today's smartphone-based remote thermostatic or video monitoring and the sophisticated artificial intelligence behind popular digital personal assistants are all examples of external devices or "virtual" devices relaying digitized information to some central processing capability.

In the context of business applications of "peripheral" input devices, it could be helpful to look at a key example. To begin with, think of a huge web-based retailer whose business model depends on having the most efficient logistical and supply-chain operations. They probably use handheld digital scanners in their warehouses and delivery services to keep track of inventory coming in and out, for the purposes of accounting and maintaining stock levels. That one kind of input device and the digital architecture supporting it creates efficiency and ease of service that keep profits low for the consumer and profits high for the company.

Last Updated by eNotes Editorial on December 29, 2020
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As the name implies, an input device is an object, gadget, or device that lets a person put information into their computer. As other Educators have already noted, keyboards and mouses (or touchpads) are clear examples of input devices. They're tools that allow users to send data and orders to their computer. If someone wants to tell their computer to go to a specific website, they can do so thanks to input devices. Using the mouse (or touchpad) and keyboard, they can make their computer call up that site.

Of course, many people have phones that function like computers. If someone wanted their phone to go to a certain website, to play a specific song, or send a text, they’d need input devices as well. That input device might be their touch screen. If they’ve bothered to set up speech recognition, they could also use their voice. They could tell their phone to go to a certain website, play a certain song, or send so-and-so a text.

In the context of speech recognition, giving a phone, computer, and so on input resembles the way people give other people input. They both use their voice to relay information and instruction. Of course, people don’t automatically have to follow another person’s input. However, when it comes to Siri, Alexa, and so on, if they don’t follow a person’s input, they’re probably not functioning properly.

Last Updated by eNotes Editorial on December 29, 2020
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The term "input device" merely refers to the instrument or hardware used to communicate with the computer. In effect, it refers to whatever device is used to put information into the computer's hard drive, and includes the keyboard, mouse, trackball, scanner, microphone, and any other means of transmitting information or data to one's computer. 

In contrast to the "input device," an "output device" is that part of a computer or computer system that is used to access the information or data. Types of "output devices" include the monitor on which information is displayed, the printer, which is, obviously, used to produce "hard copies" of the desired information, and the speakers that are integral to the computer or that are connected to a computer by cables and through which information is audibly communicated. 

In short, the "input device" is that part of the computer hardware used to transmit data to the hard drive; the "output device" is that part of the hardware used to view or access the information stored on or streamed through the computer.

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The function of an input device is to communicate information to a computer or other sort of information processing equipment. Input devices are types of peripheral devices that communicate with processing units.

The most common forms of input device for personal computers are keyboards and mice. A keyboard allows a user to input alphanumeric information to a computer, and is considered a discrete input device, as it only can input fixed or discrete types of information.

Another type of input device is a tracking device that communicates spatial information. Types of tracking devices include mice, trackballs, touch pads, and joysticks. Mice with buttons actually are hybrid devices, able to input discrete information in the forms of clicks or tracking information.

Other processing systems can be activated by sound. These might include sound activated devices or more complex forms of voice recognition technology. 

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