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Computer Input Unit and Binary Conversion

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Computer Input Unit and Binary Conversion

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Questions and Answers

What does the term 'Binary' mean in the context of computers?

Two different devices connected together

Two different color codes used for programming

Two states - ON/OFF or HIGH/LOW (correct)

Two keyboard layouts available for input

Which input device directly enters data in the form of letters, digits, and commands into the computer?

Printer

Scanner

Mouse

Keyboard (correct)

What is the primary function of a mouse as an input device?

Print documents from the computer

Convert user movements into binary digits for positioning (correct)

Display text on the computer screen

Enter data through key presses

Which part of a computer does an input unit connect to?

Central Processing Unit (CPU) Signup and view all the answers

What type of keys does a computer keyboard possess that a traditional typewriter does not?

Special keys and lock keys Signup and view all the answers

How does an input unit ensure that data is understood by the computer?

By converting data into binary form Signup and view all the answers

What is the main function of a light pen?

Selecting items on the computer screen by pointing Signup and view all the answers

Which technology is commonly used for grading specially-designed MCQ answer sheets?

Optical Mark Reader (OMR) Signup and view all the answers

In what industries are smart cards commonly used?

Banking and medical fields Signup and view all the answers

How does a light pen perform clicking actions on a computer screen?

By touching the screen with its tip Signup and view all the answers

What type of mark is recognized by an Optical Mark Reader (OMR)?

Marks made with dark pencil or ink Signup and view all the answers

What differentiates a smart card reader from a light pen?

Smart card readers recognize dark marks, while light pens select items on screens Signup and view all the answers