Understanding Input and Output Devices

What is an input device?

• A device that stores data permanently.

• An input device is a hardware component used to input data into a computer.

• A component that displays output from a computer.

• A software program that processes input.

Name three examples of input devices.

• Printer

• Keyboard, Mouse, Scanner

• Monitor

• Projector

What is the purpose of a keyboard in data entry?

• To connect to the internet.

• To display images on the screen.

• To store data permanently.

• The purpose of a keyboard in data entry is to input data into a computer system.

How does a touchscreen function as an input device?

• A touchscreen detects touch input through resistive or capacitive technology.

• A touchscreen requires a stylus to function properly.

• A touchscreen uses a mechanical lever to detect input.

• A touchscreen operates solely through voice commands.

What are the advantages of using a scanner for data entry?

• Increased paperwork

• Slower data processing

• The advantages of using a scanner for data entry include increased speed, reduced human error, enhanced accuracy, digitization of documents, and improved efficiency.

• Higher costs

Describe a scenario where a mouse would be the preferred input device.

• A spreadsheet application that relies solely on touch input.

• A graphic design application where precision and control are needed.

• A gaming scenario where rapid movements are not required.

• A text-based application where keyboard shortcuts are sufficient.

What is direct data entry?

• Data entry that requires manual processing

• Inputting data through a printed form

• Direct data entry is the input of data directly into a computer system.

• Transferring data from one database to another

List two examples of direct data entry methods.

• Voice recognition

• Keyboard input, Barcode scanning

• Touchscreen input

• Optical character recognition

How does a self-checkout system utilize input devices?

• Voice recognition systems

• Physical cash dispensers

• Magnetic stripe readers for coupons

• Self-checkout systems use barcode scanners, touch screens, and card readers as input devices.

What output devices are commonly used in a train station ticket machine?

• Printer, display screen, speaker

• Keyboard, mouse, scanner

• Projector, microphone, touchscreen

• Headphones, camera, joystick