How to Calculate Time Required to Execute a Program on a Microprocessor

Question:

A program in a microprocessor with a clock frequency of 2.5MHz has 200 clock periods. How many micrometers is the time required to execute this program in seconds?

Answer:

The time required to execute this program is 0.08 microseconds (µs).

To calculate the time required to execute a program on a microprocessor, we can use the formula:

Time = Number of clock periods / Clock frequency

In this case, the given information states that the microprocessor has a clock frequency of 2.5MHz (2.5 million cycles per second) and the program has 200 clock periods.

Using the formula, we can calculate the time required as follows:

Time = 200 clock periods / 2.5MHz

Converting the clock frequency to microseconds (µs) by dividing it by 1 million:

Time = 200 clock periods / 2.5 × 106 cycles/µs

Simplifying the expression:

Time = 0.08 µs

Therefore, the time required to execute this program is 0.08 microseconds (µs).

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