With reference to computers, which of the following statements are correct? Choose the correct answer from the options given below.

1.The CPU follows the fetch-decode-execute-store cycle to execute instructions

2.Intel and AMD are two manufacturers of CPUs

3.The clock speed of a CPU is usually measured in megabytes

4.Most CPUs require fans to cool them down so that they do not overheat

5.The CPU is the brain of the computer and modern computers cannot have multiple processor cores

A1, 2, 3 and 4 only

B1 and 2 only

C3 and 4 only

D1, 2 and 4 only ✓ Correct

Correct answer: (D) 1, 2 and 4 only

Explanation

The CPU follows the fetch-decode-execute-store cycle to carry out instructions, which is statement 1.

Intel and AMD are indeed two major manufacturers of CPUs, which is statement 2.

Most CPUs need fans to cool them and prevent overheating, which is statement 4.

Statement 3 is false because clock speed is measured in hertz, such as gigahertz, not in megabytes.

Statement 5 is false because modern CPUs commonly have multiple processor cores.

More cores let a CPU run several instruction streams at once, boosting parallel work.

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