A megahertz is a unit of frequency, used especially for radio frequencies. One megahertz equals one million cycles per second. UHF frequencies of around 900 megahertz. megahertz MHz a unit for measuring frequency, especially of radio signals, equal to one million hertz
A million cycles per second, abbreviated MHz This is often used misleadingly to indicate processor speed, because while one might expect that a higher number would indicate a faster processor, that logic only holds true within a given type of processors as different types of processors are capable of doing different amounts of work within a cycle For a current example, either a 200 MHz PowerPC or a 270 MHz SPARC will outperform a 300 MHz Pentium
a frequency measure corresponding to a signal that oscillates at one million cycles per second Megahertz is often used when referring to the clock speed of a computer
Millions of cycles per second The transmitter at a radio station with a frequency of 91 5 MHz, therefore, is oscillating at 91,500,000 cycles per second
A measure of frequency in millions of cycles per second Can be used to compare relative speed of CPUs which carry out the same number of operations per cycle but meaningless in comparing different types of CPUs