RAM = memory
CPU = main processor
Hz = hertz <- frequency’s unit
In: Technology
The frequency, with the unit Hz, is how often something happens. One Hz means that something happens once per second. 100 Hz means 100 times per second. Now, simply put, everything happening in a CPU happens on a fixed pulse. One pulse will execute a single instruction on the CPU. 1 MHz is one million instructions per second.
And for RAM, the memory shuffled to and from a RAM also happens on a clock. Pins with electricity are read with a fixed frequency, in Hz, telling you how fast data can be moved.
* Hz is a measure of the frequency of some repeated cycle.
* In the case of CPU and RAM, it’s each devices’s respective clock speed.
* Each device does some operation every time the clock pulses, so the frequency measured in Hz is the rate at which it does something.
* For the CPU this is the rate at which it processes instructions. (Some take more than one clock cycle, some only take one).
* For the RAM this is the rate at which it does the work of fetching data and refreshes the data stored. Again some or all of those operations may take more than one clock cycle.
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