A (n) ......... is a set of programs designed to manage the resources of a computer, including starting the computer, managing programs, managing memory and coordinating tasks between input and output devices.
Explanation:
The description provided perfectly defines an 'Operating system (OS)'. An OS is the core software that manages all computer hardware and software resources. Its fundamental responsibilities include booting the computer, allocating memory, scheduling CPU time, managing files, handling input and output operations, and providing a platform for application programs to run. Option (a) 'Application suite' is a collection of application programs (e.g., Microsoft Office), not a system manager. Option (b) 'Compiler' is a program that translates source code into machine code. Option (c) 'Input/output system' refers to the mechanisms for handling I/O, which is a component of what the OS manages, not the manager itself. Option (d) 'Interface' is a point of interaction, not the entire resource management system. Thus, (e) 'Operating system (OS)' is the correct answer.