Consider the following statements :
1. Intel's Pentium IV is an operating system used in PCs.
2. During booting period of a PC, the operating system is first loaded.
3. Analogue computers are useful only in scientific field while digital computers have application in scientific as well as in business, administrative functions.
4. Micro-computer is another name for micro-processor.
Which of these statements are correct?

A) 1, 2, 3 and 4
B) 2 ad 3

C) 1 and 4
D) 1, 2 and 4

Correct answer:
B) 2 ad 3


Please provide the error details in above question

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