Now, most input devices belong in museums — but we may never fully get rid of these externals, in order to promote agility of system design and portability of systems. The earliest input devices plugged into computers through specialized input adapters. These adapters were not standardized, and so there was no guarantee of compatibility. A mouse or keyboard had its own dedicated input jack, and connected through a physical cable, leading to all sorts of logistical issues where users got tangled up in wires.
Since then, the use of input devices has been widely automated and streamlined by emerging technologies. Over time, as hardware systems evolved, manufacturers moved from the traditional input device standard, to a new way of making these devices where nearly all mouse and keyboard units and other externals began to utilize the same Universal Serial Bus or USB port. At the same time, software companies were making great strides in universalizing and streamlining software drivers that would allow the computer to receive the signal from an input device.
Everything became much more plug-and-play, where many input devices were still connected to a physical cable or cord. The USB standard really improved the user-friendliness of setting up a computer system. Companies also begin to experiment with wireless systems where a USB adapter would transmit data to and from the peripheral device via Bluetooth.
The next stage of input device evolution led many of these devices to be built into the primary device. The user can draw like a pencil with the help of a stylus on the flat surface and the drawing appears on the computer screen.
Thus it allows converting the drawings or text into a format, suitable for computer processing. It is nowadays used widely in portable devices such as smartphones, palmtops, tablets, and laptops to interact with the computer with the help of your fingers or stylus. As the name suggests, it allows users to select, swipe, drag, tap, and do many other options by simply touching them.
Besides this, it is also used in other areas, medical fields, kiosks, ATMs , room automation, a lot of devices such as cameras, Car GPS, etc. It is an input device to transfer sound into the computer. The analog sound waves are converted into electric signals and are further transformed into digital data and saved in the computer.
The microphones are used for adding sound to the presentation, gaming, chatting, voice recognition, etc. The different types of microphones are the dynamic microphone, condenser microphone, ribbon microphone, etc. A scanner is an input device which reads an image or character from a hard copy document and converts it into a digital file pdf. Optical character recognition techniques are used in scanners to convert images into digital files.
There are different types of scanners available in the market such as flatbed scanner, handheld scanner, sheet-fed scanner, drum scanner, photo scanner, etc.
It is a device which can recognize the characters or details on documents that are printed with a special magnetic ink. This device is mainly used in banks for the only reason that it can process a large number of cheques within minutes with accuracy and is practically tamperproof.
It is a technology capable of reading handwritten or printed text on documents and converts them into digitized text or electronic files Pdfs. OCR copies the details using a scanner and the inbuilt software converts the document into a two-color black and white bitmap version. Many new devices such as digital watches, smartphones and tablet computers have interfaces which allow them to be used as a peripheral by a full computer, though they are not host-dependent as other peripheral devices are.
According to the most technical definition, the only pieces of a computer not considered to be peripherals are the central processing unit, power supply, motherboard, and computer case. Usually, the word peripheral is used to refer to a device external to the computer case, like a scanner, but the devices located inside the computer case are also technically peripherals. In a system on a chip, peripherals are incorporated into the same integrated circuit as the central processing unit.
In computing, an input device is a peripheral piece of computer hardware equipment used to provide data and control signals to an information processing system such as a computer or other information appliance. Examples of input devices include keyboards, mice, scanners, digital cameras and joysticks. Pointing devices, which are input devices used to specify a position in space, can further be classified according to:.
Direct input is almost necessarily absolute, but indirect input may be either absolute or relative. For example, digitizing graphics tablets that do not have an embedded screen involve indirect input and sense absolute positions and are often run in an absolute input mode, but they may also be set up to simulate a relative input mode like that of a touchpad, where the stylus or puck can be lifted and repositioned. Input and output devices make up the hardware interface between a computer and a scanner or 6DOF controller.
A keyboard is a human interface device which is represented as a layout of buttons. Each button, or key, can be used to either input a linguistic character to a computer, or to call upon a particular function of the computer. They act as the main text entry interface for most users. Traditional keyboards use spring-based buttons, though newer variations employ virtual keys, or even projected keyboards.
It is typewriter like device composed of a matrix of switches. Pointing devices are the most commonly used input devices today. A pointing device is any human interface device that allows a user to input spatial data to a computer. In the case of mice and touchpads, this is usually achieved by detecting movement across a physical surface.
However, they can also be standalone devices. Motion Capturing Devices These are the devices used to detect human movements and send them as input to the computer. Such devices are mostly used in advanced gaming setups, which allow players to play a game by moving their body parts accordingly. This technique is also beneficial in animation and robotics.
Note : There are many more input devices used on computers for performing specific purposes. Summary This article covers 20 examples of input devices used for computers, including their names, pictures, and functions of each. The primary function of an input device is to convert raw data given by users to machine language because computers only understand machine language and not raw input. The input device is known as the electro-mechanical component of a computer system.
Computers are essential for this technological era. Before discussing computer input devices, let's first understand the definition of an input device:. An input device is essentially a piece of instrument or hardware that allows users to provide data, information, or control instructions to a computer used for interaction and control.
The most common input devices of a computer system are listed below:. Because input devices perform essential functions for computers, they are considered as parts of computer systems. Several types of input devices are available to enter raw data into a computer. The following are examples of commonly used input devices:. The keyboard is one of the primary input devices, which helps in entering data and commands in a computer. A mouse is the most common and very popular pointing device that helps interact with a computer through a process called 'point and click'.
Joysticks are widely used to play games on a computer. The touchpad, also known as a trackpad, is an input device that is primarily integrated with a laptop. A light pen is another pointing device that has the same structure as a pen. The trackball is a pointing device that is used to perform similar tasks as a mouse. A scanner is an essential input device that allows us to convert a hard copy document into a digital file. A graphic tablet, also known as a digitizer, is primarily used to digitally transform hand-drawn artwork.
A stylus is an input device used to draw or write on the surface of digitizers and touch-screens. Touchscreens are widely used due to the use of portable devices, such as smartphones, notebooks, tablets, laptops, etc. A microphone, also known as a mic, is a type of voice input device that allows users to input voice into a computer system. A digital camera is an input device that is used to capture images and video in digital form. Webcam can capture images and videos and convert them into a digital form.
MICR is a device that typically reads characters or texts that are printed on paper using ink that contains particles of magnetic material. OCR is an input device used to read the handwritten or printed text and convert them to digital text. A bar code reader, also known as a barcode scanner, is an input device used to read bar codes.
The OMR is a type of input device that optically scans the paper and identifies the mark created using a pencil and pen. Biometric devices are used to input a person's scanned data based on biological characteristics, such as facial structures, fingerprints, eye corneas, etc.
These are the devices used to detect human movements and send them as input to the computer. This article covers 20 examples of input devices used for computers, including their names, pictures, and functions of each. Please share this Weekly Hits. Latest Tutorial Computer.
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