Explanation

A device driver is a specialized software that enables the operating system to recognize and control hardware (like printers, keyboards, etc.).

Without drivers, the OS cannot communicate properly with hardware devices.

Explanation

OCR Function:

OCR technology extracts text from images/scanned PDFs and converts it into machine-readable, editable text (e.g., turning a book scan into a Word file).

Common Uses:

Digitizing printed documents.

Automating data entry (e.g., invoices, receipts).

Enabling text searches in scanned files.

Explanation

.obj files are object files generated during compilation before linking into an executable.

.pdf and .pptx are document formats.

.cpp is C++ source code.

Explanation

In Linux Interprocess Communication (IPC), signals are used to notify a process that a particular event has occurred.

They are asynchronous, meaning they can arrive at any time, regardless of what the process is doing.

Explanation

In C++, the body of a function is enclosed within curly braces: {}.

This structure contains the instructions that will be executed when the function is called. 

Explanation

McAfee is an American company founded in 1987, 10 years before Kaspersky

McAfee is a premium antivirus

Kaspersky was founded in Russia in 1997 

Kaspersky offer a free antivirus product

Explanation

Prototypes are early models of a product used to:

• Test functionality (e.g., Does the design work?).
• Gather user feedback (e.g., Is the interface intuitive?).
• Identify flaws before mass production.

Explanation

Gmail is an email service, not a web browser.

Mozilla Firefox, Google Chrome, and MS Edge are all web browsers used to access websites.

Explanation

Green Computing refers to practices and technologies that reduce the electricity consumed and environmental waste generated by computers and related devices.

It involves designing, manufacturing, and disposing of computers and related products in an environmentally friendly way.

Explanation

An output device is any device used to send data from a computer to another device or user.

******

VU FIA CONSTABLE PAPER 2021