Why Are Threads Needed On Single Core Processors

What is the primary purpose of concurrency in multi-process systems with a single CPU?

• To allow multiple processes to truly execute at the exact same instant.

• To make processes share the CPU by alternating access, creating an illusion of simultaneous execution.

• To prevent any process from accessing I/O devices.

• To ensure only one process runs at a time to avoid conflicts.

Why is it generally inefficient to handle multiple client requests sequentially in a server application that requires disk I/O?

• Because the server's memory would quickly become exhausted.

• Because the CPU would sit idle while waiting for slow I/O operations to complete.

• Because clients would send requests too quickly for the server to keep up.

• Because the server would crash due to too many open connections.

What is a significant drawback of creating a new process for each client request in a server application?

• Increased network latency.

• Reduced CPU utilization.

• Inefficient memory usage for a large number of clients.

• Simplified inter-process communication.

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Which of the following components is typically not shared among threads belonging to the same process?

• Heap memory.

• Text (code) segment.

• Stack.

• Data segment.