A database management system (DBMS) is a software system used to create, maintain and provide controlled access to a database.

Yes, it is the shortcut to prevent any CD from auto start.

This software enables you to create a duplicate copy of a CD. This software first copies the image from the original CD. Then, it burns the image on the blank CD.

Application software aims at solving some user defined problems like accounting, managing, reservations, billing, etc.

System software aims at making the computer a user friendly machine. A computer is a machine that knows nothing of itself. It requires instructions for each and everything it performs and the instructions provided to the software control internal computer operations, like reading data from input devices, checking system components, etc. Hence, system software is the software which aims at making the computer a user friendly machine. 

Loader is the program that helps to load other programs from input systems. So, loader is the program which helps in loading the executable files from secondary storage to main memory.

An operating system acts as an interpreter between software and hardware.

A browser is stored in a computer's hard disk.

The location where input/output devices are connected to the computer is known as port.

Correct option is (4). 

Correct Answer: Bus

Option (4) is the correct answer.