Input Devices Quiz

A(n) ______ is a device that is used to send data and instructions to a computer

The keyboard is used to enter text, numbers, special symbols, and other commands into a computer by pressing buttons. It is an example of an ______

The mouse is used to move and control a pointer cursor on a computer screen. It is an example of an ______

Double-click is used to start a program or to open a file/folder. It refers to pressing and releasing the left button of the mouse ______

A touchpad is a pointing device found on laptop computers. It works by sensing the user’s finger movement and downward pressure. The touchpad is an alternative to the mouse. It can be used on the move where there is not enough space to accommodate a mouse. However, it takes practice and skill to control the position of the cursor using a ______

A joystick is used for controlling machines such as cranes, trucks, surveillance cameras, medical equipment, and wheelchairs. Moreover, a joystick can be helpful as an input device for people with movement disabilities. It is a type of input device known as a ______.

A scanner is a device that produces a digital image of information contained in hard copies. The image is transferred into the computer system where it is stored as a file. A scanner is used to create a digital image of physical documents, making it easier to store and share the information digitally. This device is commonly known as a ______.

A barcode reader, also called a barcode scanner, is a device that can read printed barcodes (black and white lines) found on products. It uses laser beams to capture the barcodes and then translates them into digital information. This device is widely used in supermarkets, shops, warehouses, and libraries. The purpose of a barcode reader is to quickly and accurately scan barcodes to retrieve product information. The barcode reader is an essential tool for efficient inventory management in various industries. The term 'barcode reader' is sometimes used interchangeably with '______ scanner'.

A touchscreen is a computer screen that is sensitive to pressure. A user can interact with the computer by touching the pictures or words on the screen with their finger. Touchscreens are commonly used in devices such as smartphones and tablets. The technical term for a touchscreen that responds to touch input is a ______ screen.

Sensors are input devices used to measure physical quantities (such as temperature, light, pressure, and sound) and send signals to a computer processor. The data fed into the processor is examined by a control program which decides what to do next. Different types of sensors are used in different applications. For example: Temperature sensors are used in automated heating or cooling systems. Infrared sensors are used for automatic door opening of shopping malls. Proximity sensors are used in vehicles to facilitate parking and avoid bumping into objects. Sensors play a crucial role in automation and are essential components in various technological systems. Sensors are designed to detect and respond to changes in the environment, making them indispensable in modern ______.