Computer Fundamentals and System Concepts

Debugging is the process of identifying and removing errors from computer software or hardware. The term originated from actual insects (bugs) causing problems in early electromechanical computers. It doesn't mean improving languages or removing viruses specifically.

Norton is antivirus software developed by Symantec (now NortonLifeLock). It's designed to detect, prevent, and remove malicious software (malware), not create viruses. It's not a programming language.

A computer worm is a standalone malware computer program that replicates itself in order to spread to other computers. Often, it uses a computer network to spread itself relying on security failures on the target computer to access it.

Yes, system software is used to manage the internal resources. Utility and operating system softwares form system software.

Copying is not an important characteristic. 

Yes, it is correct.

A UPS (Uninterruptible Power Supply) keeps a computer running for 15 minutes after the power is lost, it is usually sufficient time to save all necessary documents and properly shut down the computer.

Router is a hardware device that routes data from a local area network to another network connection.

Adaptive maintenance means changing the software to some new environment such as different hardware platform or for use with a different operating system.

CISC processors have larger instruction sets that often include some particular complex instructions.

This includes I/O instructions in an instruction set.

This unit of CPU controls the system operations by routing the selected data items to the selected processing hardware at the right time.

This unit of a computer constitutes some mechanism that provides for communication among CPU, memory and I/O.

We use 'who' and 'whom' for human beings and 'that' for things. So, option 3 is the correct answer.

MANIAC (Mathematical Analyzer, Numerical Integrator, and Computer) was the nickname given to the computer used at Los Alamos National Laboratory in 1952 for H-bomb calculations. ENIAC was earlier (1940s), while UNIVAC was a commercial computer.