Computer | MCQs

Explanation

Using navigation keys

Page Up: Move the cursor or page up one screen

Ctrl + Home: Move to the top of a document

Ctrl + End: Move to the bottom of a document

Page Down: Move the cursor or page down one screen

Explanation

Avast and NAV are anti-virus software.

***

Symantec's Norton Group launched Norton AntiVirus 1.0 (NAV) for PC and compatible computers.

***

Avast's free antivirus software detects and blocks all types of malware in real-time to prevent them from infecting your computer.

Kaspersky, Norton, and Avast are anti-virus software.

***

Linux is an operating system not an anti-virus

anti virus 

Oracle is not an anti-virus software.

Explanation

Cybercrime is any criminal activity that uses a computer, network, or networked device.

Some examples of cybercrime include:

• Fraud: Cybercriminals can use computers to commit fraud, such as credit card fraud
• Identity theft: Cybercriminals can steal identities
• Child pornography: Cybercriminals can traffic in child pornography
• Intellectual property theft: Cybercriminals can steal intellectual property
• Phishing: Cybercriminals can send fraudulent emails to collect sensitive information
• Denial of service attacks: Cybercriminals can launch denial of service attacks (DDOS)
• Cyberterrorism: Cybercriminals can commit cyberterrorism

Explanation

• An operating system that allows a single user to perform only one task at a time is called a Single-User Single-Tasking Operating System.
• Functions like printing a document, downloading images, etc., can be performed only one at a time. Examples include MS-DOS, Palm OS, etc.
• Advantage:
  • This operating system occupies less space in memory.
• Disadvantage:
  • It can perform only a single task at a time.

Explanation

• The output shown on the computer monitor is called a soft copy
• ***
• The output that is displayed on the computer’s monitor is considered a soft copy.
• The computer’s monitor is the computer’s display unit.
• As the operations are conducted, the function or operation that is done through the software files on the computer can be seen.
• The files are saved either by the user or by a default that often exists.
• In both instances, the output becomes the data operation’s soft copy.

Explanation

Turing's most notable work today is as a computer scientist.

In 1936, he developed the idea for the Universal Turing Machine, the basis for the first computer.

He developed a test for artificial intelligence in 1950, which is still used today.

Explanation

Keyboard is an input device.

Keyboard is similar to electric typewriter.

Keyboard uses serial port to connect with computer.

Keys on keyboard are of mainly three types:

Alphanumeric keys: letters and numbers 

Punctuation keys: comma, period, semicolon, etc.

Special keys: function keys, arrow keys, caps lock key, etc. 
Keyboard inventor: Christopher Latham 

Smallest key on keyboard: Space key

Explanation

Star topology is a topology for a Local Area Network (LAN).

In which all nodes are individually connected to a central connection point, like a hub or a switch.

Explanation

Petabyte (1,024 Terabytes, or 1,048,576 Gigabytes)

*******

VU CBT FIA SI ASI PAPER 13-12-2021

Explanation