MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -In a computer, clock speed refers to the number of pulses per second generated by an oscillator that sets the tempo for the processor. Clock speed is usually measured in MHz (megahertz, or millions of pulses per second) or GHz (gigahertz, or billions of pulses per second).

Detailed explanation-2: -The clock speed measures the number of cycles your CPU executes per second, measured in GHz (gigahertz). In this case, a “cycle” is the basic unit that measures a CPU’s speed. During each cycle, billions of transistors within the processor open and close .

Detailed explanation-3: -A computer’s processor clock speed determines how quickly the central processing unit (CPU) can retrieve and interpret instructions. This helps your computer complete more tasks by getting them done faster. Clock speeds are measured in gigahertz (GHz), with a higher number equating to higher clock speed.

Detailed explanation-4: -A system clock or system timer is a continuous pulse that helps the computer clock keep the correct time. It keeps count of the number of seconds elapsed since the epoch, and uses that data to calculate the current date and time.

Detailed explanation-5: -Clock speed is also referred to as clock rate, PC frequency and CPU frequency. This is measured in gigahertz, which refers to billions of pulses per second and is abbreviated as GHz. A PC’s clock speed is an indicator of its performance and how rapidly a CPU can process data (move individual bits).