The advantages of having an operating system in software development is/are:i. Multi-taskingii. Multi-threadingiii. Multi-useriv. Easy application development

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The advantages of having an operating system in software development is/are:i.    Multi-taskingii.    Multi-threadingiii.    Multi-useriv.    Easy application development

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The question asks about the advantages of having an operating system in software development, listing four items: i. Multi-tasking, ii. Multi-threading, iii. Multi-user, iv. Easy application development.
Option 1: All of the above. This choice asserts that all four listed items are advantages provided by an OS in the context of software development. Multitasking allows running multiple processes concurrently, which is a fundamental OS capability that benefits developers by enabling responsive and efficient systems. Multi-threading lets programs split work into parallel threads, improving performance and scalability in applications. Multi-user support allows multiple users or processes to share the same system resources securely and efficiently, which is important in development environments and servers. Easy application development reflects the OS’s role in providing APIs, libraries, and runtime environments that streamline building, testing, and deploying software. Taken together, these collectively describe common advantages of an OS in development contexts, so this option captures the full set accurately.
Option 2: i, ii and iv. This excludes iii (multi-user), which is a legitimate OS feature in many environments (such as servers and workstations designed for multiple users). By omitting iii, this option misrepresents the scope of typical OS advantages in development scenarios where multi-user support is often essential for collaboration, security, and resource management.
Option 3: i, iii and iv. This excludes ii (multi-threading). While multitasking, multi-user capabilities, and ease of development are valid, omitting multi-threading ignores a critical concurrency feature that helps apps perform better by parallelizing work, especially on modern multicore CPUs. As a result, this option is incomplete.
Option 4: i, ii and iii. This excludes iv (easy application development). Although multitasking, multi-threading, and multi-user support are core OS strengths, the statement about easy application development is more subjective and depends on the OS ecosystem and tooling. Nevertheless, in many development contexts, the OS’s abstractions and services do contribute to easier development, so excluding iv makes this option incomplete.
In summary, Option 1 (All of the above) is the most comprehensive and accurate reflection of the advantages provided by an operating system in software development, whereas Options 2, 3, and 4 each omit one of the valid benefits and therefore are not fully correct.

The advantages of having an operating system in software development is/are:i. Multi-taskingii. Multi-threadingiii. Multi-useriv. Easy application development

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