COMPUTER | MCQs

Explanation

A WAN can cover country, continent or even a whole world.

Internet connection is an example of WAN.

Other examples of WAN are mobile broadband connections such as 3G, 4G etc.

Explanation

The "operating system" of a computer is like a first, supervisory program that begins running when the computer first starts up .

The operating system plays an invisible administrative and bookkeeping role behind the scenes.

Explanation

Differentiate between network and internet.

Network: A network is a group of interconnected computers or devices that can share resources and information, typically within a local area (LAN) or wide area (WAN).

Internet: The internet is a global network of networks that connects millions of private, public, academic, and governmental systems, enabling worldwide communication and information sharing.

Explanation

DPI stands for_____?

Dots Per Inch

Explanation

Cyber Unit of police has been established to curb following crimes and fraud

SIMs, 

Internet 

Chips

__________________

cybercrime, also called computer crime, the use of a computer as an instrument to further illegal ends, such as committing fraud, trafficking in child pornography and intellectual property, stealing identities, or violating privacy.

Explanation

USB stands for Universal Serial Bus

It is a standard interface for connecting computer peripherals, such as keyboards, mice, printers, and external hard drives.

Explanation

The CPU is the brain of the computer.

It is responsible for executing instructions, performing calculations, and managing data processing.

It is the most complex and intricate component of a computer.

It consisting of billions of transistors.

It is considered the most challenging to design and manufacture.

Explanation

Hardware refers to the physical components of a computer system, including:

• Motherboard: The main circuit board that connects all hardware components together.
• Hard disk: A storage device that holds data and programs.
• Processor (CPU): The brain of the computer that executes instructions and performs calculations.

In addition to these three, hardware also includes other components such as:

• RAM (Memory)
• Power Supply
• Graphics Card
• Sound Card
• Keyboard
• Mouse
• Monitor
• Case

Explanation

Synchronization can occur in both hardware and software contexts to ensure that different components or processes operate in harmony.

Explanation

زیادہ فائلز اکٹھی بھیجنے کے لیے زیپ استعمال ہوتا ہے کیونکہ:

کمپریشن: زیپ فارمیٹ فائلز کو کمپریس کرتا ہے، جس سے ان کا سائز کم ہو جاتا ہے اور انہیں بھیجنا آسان ہو جاتا ہے۔

ایک ہی فائل: متعدد فائلز کو ایک ہی زیپ فائل میں اکٹھا کیا جا سکتا ہے، جس سے انہیں مینیج کرنا آسان ہو جاتا ہے۔

آسان شیئرنگ: چھوٹی سائز کی فائلز کو ای میل یا دیگر فائل شیئرنگ سروسز کے ذریعے آسانی سے بھیجا جا سکتا ہے۔

پاس ورڈ پروٹیکشن: زیپ فائلز کو پاس ورڈ کے ذریعے پروٹیکٹ کیا جا سکتا ہے، جو فائلز کی سیکیورٹی کو بڑھاتا ہے۔