Joysticks consist of a stick that pivots on a base

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Joysticks consist of a stick that pivots on a base. Both the stick and the base have several input buttons. Joysticks are typically used with flight simulator games. Scanner Scanners are used to scan hard-copy images and documents and convert them into digital input for the PC. For example, film photos can be scanned and saved as image files. Some scanners combine the functionality of a document scanner and are able to create editable documents. Motion sensor Motion sensors are devices that are able to detect the slightest amount of movement in an area. They are typically used with security systems and require special software and configuration. Two types of motion sensors exist: Active motion sensors use ultrasonic sound waves to detect movement in an area. If movement is detected, something happens (e.g., a door opens or an alarm triggers). Passive motion sensors detect infrared energy, which is emitted by humans and animals. Passive motion sensors ignore small changes in infrared energy in order to avoid false alarms. Passive motion sensors are sometimes called passive infrared sensors (PIR). Touch pad Touch pads are typically found on notebook computers and are used in place of a mouse. Users slide their finger on the touch pad to manipulate the cursor. Touch pads can also be used with desktop computers. These touch pads connect to the computer through a USB port and are used instead of a mouse. Smart card reader Smart card readers are used as an authentication method. A smart card, which contains an embedded microchip, is inserted into the reader. The reader then scans the chip, verifies its contents, and authenticates the user. Smart card readers can be stand-alone devices or integrated with other peripherals (e.g., a keyboard). Biometric scanner Biometric scanners are used as a form of authentication. They are able to scan users' unique physical features and use them to verify their identity. Common physical features used by biometric scanners include: Retina (eyes) Fingerprint Face Heart beat
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Barcode reader A barcode reader is a device that can scan barcodes. Barcodes are most commonly used in retail environments at checkout stands. Shipping companies, hospitals, and other organizations use barcodes to track or inventory items. Most bar code readers use a laser to scan the barcode. Some use cameras or optical scanners. Barcode readers include software that interprets the meaning of the barcode. By installing a special app, smartphones are able to function as a barcode reader by using the phone's built-in camera. KVM switch A KVM (keyboard, video, mouse) switch allows multiple computers to use a single keyboard, mouse, and monitor. KVM switches have multiple input groups, with each group accepting keyboard, video, and mouse connections from one computer. A single output group connects to the shared peripheral devices. Buttons on the KVM switch are used to toggle between each connected computer.
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