Prompt the user to enter a course number such as MA122 (assume it is always 5 characters long). Verify that the first 2 characters are letters. Verify the last 3 characters are digits. If it is correct, print proper format. Otherwise, print invalid format

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A: Dear learner, hope yo are doing well!, I will try my best to answer this question. Thank You!!

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Linux

An operating system (OS) is the software which manages hardware and resources, like CPU, storage and memory. The OS bridges the applications and hardware and makes the connections between all of your software and the hardware resources.