Computer Fundamentals and System Concepts

A computer virus is a type of malware that, when executed, replicates by modifying other computer programs and inserting its own code. This distinguishes it from other malware types like Trojans (which disguise themselves but don't replicate) and worms (which are standalone and spread through networks).

This technology includes a set of 57 instructions resulting in increasing multimedia capabilities of a computer chip.

This technology introduced k6 chips, feature MMX technology and provides potential power of personal computer.

Disc Controller enables the CPU to communicate with a hard disk, floppy disk or other kind of disk drive.

This type of computers can be accomplished on shared memory systems with multiple CPUs or on distributed memory clusters made up of smaller shared memory systems or single CPU systems.

This function of operating system controls peripheral devices by sending them commands in their proprietary command language.

A user manual (or user guide) is specifically designed to tell end users how to operate and use a software program effectively. Documentation (A) is broader and includes technical specifications, programming manuals are for developers, and technical manuals may cover installation or maintenance rather than usage.

Time bombs are malicious programs designed to execute their payload on a specific date or after a certain time period has elapsed. Boot-sector viruses infect the boot sector of storage media, macro viruses infect macro-enabled documents, and worms are self-replicating malware that don't require a host file or time trigger.

Option (2) is the correct answer.

Option (2) is the correct answer.

Option (3) is the correct answer.

Option (3) is the correct answer.

Hardware refers to the physical components of a computer that you can touch and feel - keyboard, monitor, CPU, mouse, etc. Software, programs, and output are intangible - they are instructions or results that run on hardware.

Option (3) is the correct answer.

The monitor is the primary output device of a computer that visually displays user work and interface elements. RAM and ROM are internal memory components, while a printer produces physical hard copies.