What is the difference between a mouse and a tracker ball?

One moves across a surface and the other is stationary

One is input and the other is output

One has two and the other has three buttons

Which of the following would be an ideal situation for using a tracker ball?

When there isn’t enough space on a desk

When a barcode needs to be scanned

When answers to a test need to be input

In which of the following situations would you use a keyboard?

In a hospital to input a number of patients’ records in a database

At an architect’s office to draw plans

In an examination centre to input a number of multiple choice questions

What is the relationship between a barcode and a barcode reader?

The thick and thin lines making up a barcode are read by the barcode reader, which then forwards to the computer the information stored in that barcode

The pattern of lines are set by the barcode reader to store information into the barcode

The barcode is read by the barcode reader and printed onto labels to attach to products

A company wants to invest in an advertising strategy that will increase sales by those people coming in contact with their advertisement. What would you recommend they use?

QR codes so people can access websites more conveniently rather than typing url

Sending personal emails to interested people

Handing out fliers and promising discounts to people who wish to buy

Which of these is OMR sometimes used for?

Controlling Characters in Computer Games

Projecting a Presentation onto a big screen.

Drawbacks of a concept keyboard

Not suitable for large amount of options/choices

Applications of a concept keyboard

Cashier tills, e.g. fast food restaurant

Used in everyday computing to enter text and commands.

Used by disabled people with limited motor skills

Used in everyday computing to control the pointer in GUIs.

A trackball works by:

Rotating a stationary ball to adjust the pointer on a screen

Tracking the movement of a laser or LED light across a flat surface

Pressing keys down to generate different binary inputs

Turning analogue sound vibrations into electrical signals

Tracking the movement of a laser or LED light across a flat surface

Rotating a stationary ball to adjust the pointer on a screen

Pressing keys down to generate different binary inputs

Turning analogue sound vibrations into electrical signals

Pressing keys down to generate different binary inputs

Rotating a stationary ball to adjust the pointer on a screen

Tracking the movement of a laser or LED light across a flat surface

Turning analogue sound vibrations into electrical signals

A microphone works by:

Turning analogue sound vibrations into electrical signals

Rotating a stationary ball to adjust the pointer on a screen

Tracking the movement of a laser or LED light across a flat surface

Pressing keys down to generate different binary inputs

What does a QR code do

A code you can scan using a QR code scanner to open up a link (not just websites)

What is the difference between Bar code and Quick Response (QR) codes:

Bar code: black and white vertical lines , QR code matrix of filled in dark squares

Bar Code supports more character

QR code is the earliest of the two bar codes

Where Quick Response (QR) codes is mostly used :

store website addresses/URLs of the advertiser

at immigration counter scanning IC card

Input Devices

Authored by Anmarie Anderson

Computers

10th Grade

Used 68+ times

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MULTIPLE CHOICE QUESTION

Mouse

Tracker ball

Joystick

Driving wheel

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Input Devices

Why are input devices needed?

Which input device is commonly used for gaming?

Which input devices inputs letters, numbers, symbols and special characters into a computer?

Which input device would you use to capture sound?

Which input device would you use to capture video in real-time?

Which of the following Input Device does a supermarket use to input information about a product very quickly and without mistakes?

A device used to select commands for people with restricted arm movements

A device that inputs moving images into a computer which is mainly used for video conferencing.

Used to create digital copies of printed documents into a computer

Used by artists and designers to create and input digitally drawn or created images into a computer

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