Class 8_Computer

Which programming language is known for its simplicity and readability?

• Python

• C++

• Java

• JavaScript

Who is considered the father of modern computer science?

• Alan Turing

• Charles Babbage

• Nikola Tesla

• Isaac Newton

What is the function of a web browser?

• The function of a web browser is to predict the weather

• The function of a web browser is to cook food

• The function of a web browser is to access and display information on the World Wide Web.

• The function of a web browser is to fly airplanes

How can you identify a secure website for online transactions?

• Check for 'https://' in the URL, padlock symbol, SSL certificate, secure payment options, and user reviews.

• Look for 'http://' in the URL

• Use websites with pop-up ads

• No need to check for any security indicators

What was the first commercially successful personal computer?

• Apple II

• Macintosh 128K

• IBM 5150

• Commodore PET

What are the potential risks of downloading files from unknown sources?

• The potential risks of downloading files from unknown sources include exposure to malware, viruses, ransomware, spyware, phishing scams, legal issues, and other cyber threats.

• Enhanced device performance

• Increased storage capacity

• Improved internet speed

What is the purpose of a firewall in network security?

• To block unauthorized access and protect against cyber threats

• To enhance internet speed

• To predict the stock market

• To improve device performance

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  Sensors collect large quantities of _____________ data.

• Computer

• Digital

• Biometric

• Analogue

Answer explanation

An analog sensor is a type of sensor that measures a physical quantity or phenomenon and provides an output signal that is directly proportional to the quantity being measured.

What is the full form of ASCII?

• American Standard Code for Information Interchange

• Association of Software Coding and Information Institute

• American Standard Computing and Information Institute

• American Scientists Convention for Information Interchange

Answer explanation

ASCII, a standard data-encoding format for electronic communication between computers. ASCII assigns standard numeric values to letters, numerals, punctuation marks, and other characters used in computers.

Which of these terms is used to represent an error in a computer program?

• Mistake

• Error

• Bugs

• Fault

Answer explanation

A software bug is an error in the programming of software or an app. Bugs cause problems ranging from stability issues to operability problems and are usually due to human errors during the programming process. They may be the result of a mistake or an error, or they could stem from a fault or defect.