MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -The clock speed of computers is usually measured in megahertz (MHz) or gigahertz (GHz). One megahertz equals one million ticks per second, and one gigahertz equals one billion ticks per second. You can use clock speed as a rough measurement of how fast a computer is.

Detailed explanation-2: -The clock speed measures the number of cycles your CPU executes per second, measured in GHz (gigahertz).

Detailed explanation-3: -Because the clocks they use to mediate their activities are electronic and they vibrate at a given frequency to generate their signals. So it makes sense to express their rate of vibration in hertz in terms of cycles per second similar to radio frequencies.

Detailed explanation-4: -Clock speed is expressed in gigahertz-billions of cycles per second.

Detailed explanation-5: -Remember : 1 Hertz = 1 Hz = 1 cycle/sec. To determine the length of a clock cycle, divide clock speed into 1. One clock cycle is 1 / ( 1 * 10^6 cycles/sec. ) or 1/1 * 1/(10^6 cycles/sec). 1 over a power flips the units and the sign is inverted, so 1/10^6 cycles/sec becomes 10^-6 secs/cycle.