OCR technology enables scanners to recognize text characters on a document and convert them into machine-readable digital format.

Capacitive touchscreens use an electrostatic field and detect the human body's conductive properties to identify touch points.

Optical mice use a CMOS sensor to take high-speed photos of the surface to determine the direction and speed of movement.

A microphone is a transducer that converts acoustic energy (sound) into electrical energy (digital signals).

Handheld laser scanners are widely used in retail environments to quickly read and decode the light reflected from barcode patterns.

Resistive screens rely on physical pressure to bring layers together, whereas capacitive screens rely on the electrical charge of the human body.

Universal Serial Bus (USB) has become the industry standard for connecting peripherals like keyboards and mice.

A touchpad, also known as a trackpad, is the standard built-in pointing device on laptops.

A stylus is an input device used in conjunction with a digitizer or touchscreen to provide precision drawing and writing capabilities.

Mechanical mice historically used a ball that rotated rollers attached to encoder wheels to track movement.

DPI stands for Dots Per Inch, which measures the sensitivity or precision of a computer mouse sensor.

Ergonomic keyboards are designed with a split or curved layout to provide a more natural hand position.

The CCD (or CIS) is the sensor that converts light reflected from the document into a digital signal.

Multi-touch trackpads recognize gestures like pinching or spreading fingers to perform actions such as zooming.

Micro-Electro-Mechanical Systems (MEMS) microphones are small, energy-efficient, and ideal for compact laptops.

A digitizer tablet allows artists to draw directly onto a surface using a stylus, capturing pressure and tilt data.

Membrane keyboards use pressure-sensitive plastic layers rather than individual mechanical switches.

Multi-touch capability allows the device to process inputs from more than one finger at the same time.

Sheet-fed scanners have automatic document feeders (ADF) specifically designed for handling large stacks of papers quickly.