12 Questions
What does the term 'Binary' mean in the context of computers?
Two states - ON/OFF or HIGH/LOW
Which input device directly enters data in the form of letters, digits, and commands into the computer?
Keyboard
What is the primary function of a mouse as an input device?
Convert user movements into binary digits for positioning
Which part of a computer does an input unit connect to?
Central Processing Unit (CPU)
What type of keys does a computer keyboard possess that a traditional typewriter does not?
Special keys and lock keys
How does an input unit ensure that data is understood by the computer?
By converting data into binary form
What is the main function of a light pen?
Selecting items on the computer screen by pointing
Which technology is commonly used for grading specially-designed MCQ answer sheets?
Optical Mark Reader (OMR)
In what industries are smart cards commonly used?
Banking and medical fields
How does a light pen perform clicking actions on a computer screen?
By touching the screen with its tip
What type of mark is recognized by an Optical Mark Reader (OMR)?
Marks made with dark pencil or ink
What differentiates a smart card reader from a light pen?
Smart card readers recognize dark marks, while light pens select items on screens
Learn about the input unit of a computer, which converts data and instructions into binary form. Understand how input devices help users communicate with computers through binary code. Explore the concept of binary as representing two states - ON/OFF or HIGH/LOW.
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