C++ | MCQs

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RAM and ROM difference

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A hybrid computer is a type of computer that offers the functionalities of both a digital and an analog computer.

It is designed to include a working analog unit that is powerful for calculations, yet has a readily available digital memory.

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Twitter messages are called: Tweets

Logo of Twitter is: white X

Twitter launched on: 21 March 2006

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The software to view HTML documents as a Web page is called a Web browser.

Popular ones are Google Chrome, Apple's Safari, Mozilla's Firefox, Opera and Microsoft's much hated Internet Explorer.

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Phishing scams are fraudulent attempts to get sensitive data like passwords or credit card details by pretending to be a trustworthy entity (e.g., bank or service provider).

These scams often use fake emails, websites, or messages to trick users into revealing personal information.

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In a nested for-loop, the inner loop executes N times for each iteration of the outer loop.

This results in a total of N × N = N² iterations, making the time complexity O(N²).

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SSDs have no moving parts, which results in faster data access speeds and lower latency.

HDDs rely on mechanical components like spinning disks, which make them slower and more prone to delays in data retrieval.

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 A "virus" is a small computer program that interferes with the normal working of a computer. 

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The battery on a motherboard, often called a CMOS battery

CMOS battery:

Function: It powers the CMOS chip which stores critical system settings. 

What it stores: Date, time, boot sequence, hardware configurations, and sometimes passwords. 

What happens if it fails: If the battery dies, you will likely need to reset the BIOS settings when you turn on your computer, including setting the date and time again.