MCQ Detailed View

The correct unit for measuring the speed of a CPU (Central Processing Unit) is MHz, which stands for Megahertz. One Megahertz equals one million cycles per second. CPU speed refers to how many instructions a processor can execute in one second. It directly affects how quickly a computer performs tasks.

In earlier computers, MHz was commonly used to represent CPU speed. For example, a processor running at 800 MHz could carry out 800 million cycles per second. In modern computers, CPU speed is usually measured in GHz (Gigahertz), where 1 GHz = 1,000 MHz. However, for general understanding and in many exam scenarios, MHz is still accepted as the unit for CPU speed.