UGC NET Questions (Paper – 1)

Statements A, B and C correctly capture the fundamental relationship between hardware and software in ICT. Hardware is indeed the tangible part of the computer system, while system software like operating systems manages these resources and supports application software. Application software performs specific user tasks such as document creation or computations. Statement D is incorrect because hardware and software are interdependent and must interact for any ICT operation, so the correct combination of true statements is A, B and C only.

Option A:
Option A is incorrect because it recognises only statement A as correct and treats the others as incorrect by omission. While statement A is true, statements B and C are also true descriptions of system and application software. Leaving out B and C makes this option an incomplete and therefore wrong representation of the correct set of statements.

Option B:
Option B is incorrect because it includes only statements A and B. Although both A and B are true, statement C is also a correct description of application software performing user-specific tasks. By failing to include statement C among the correct statements, this option cannot be accepted.

Option C:
Option C is correct because it groups together all and only the true statements, namely A, B and C. These three statements collectively describe how hardware, system software and application software work together in an ICT system. They show the layered structure where hardware is controlled by system software and used by application software to fulfil user needs, while correctly excluding the false statement D.

Option D:
Option D is incorrect because it adds statement D to the otherwise correct group of A, B and C. Statement D is false, as hardware and software must interact closely within any ICT system for processing to occur. Including a false statement alongside true ones invalidates this combination as the correct answer.

Statements A, B, D and E describe core OS functions and a specific OS type. Operating systems allocate CPU and memory, offer file management and provide authentication and access control. A single-user, single-task OS indeed restricts execution to one program at a time. Statement C is false because OSs coordinate I/O devices, and F is false since many graphical systems expose command-line interfaces. Thus A, B, D and E only are correct.

Option A:
Option A is incorrect because it omits E, ignoring the description of single-user, single-task operating systems. While A, B and D are true, this combination fails to include all correct statements given in the question.

Option B:
Option B is correct because it gathers process and memory management, file services, security mechanisms and a valid classification of an OS. It excludes C and F, which misrepresent the OS role in I/O and the possibility of command-line interfaces.

Option C:
Option C is incorrect because it leaves out B and does not mention file management as a key OS responsibility. Although A, D and E are true, omitting B makes the set incomplete.

Option D:
Option D is incorrect because it includes F, which wrongly claims that graphical systems cannot have command-line tools. Mixing true statements with this incorrect claim means the entire option cannot be accepted.