Which unit is used to measure CPU processing speed?

Which unit is used to measure CPU processing speed?

• A. GHz
• B. MB
• C. Hz
• D. RPM

Answer: (A)

CPU processing speed is the rate at which the processor's clock ticks, i.e., how many cycles it can perform each second. This rate is measured in hertz, with larger prefixes for practical numbers. In everyday practice, modern CPUs are described in gigahertz, meaning billions of cycles per second, so GHz is the standard unit to express speed. Megabytes indicate data size, not how fast the CPU runs. RPM stands for revolutions per minute and is used for rotating parts, not for computing speed. Therefore GHz best captures how many cycles per second the processor can handle.

CPU processing speed is the rate at which the processor's clock ticks, i.e., how many cycles it can perform each second. This rate is measured in hertz, with larger prefixes for practical numbers. In everyday practice, modern CPUs are described in gigahertz, meaning billions of cycles per second, so GHz is the standard unit to express speed. Megabytes indicate data size, not how fast the CPU runs. RPM stands for revolutions per minute and is used for rotating parts, not for computing speed. Therefore GHz best captures how many cycles per second the processor can handle.