# RAMS (Random Access Memory)
Rams come under the primary memory these play a vital role in functioning of a computer or a mobile. The working is almost similar in both Computer as well as mobile.
- Working
As soon as the computer is turned on the operating system loaded in the hard disk is brought on the ram and is run. Similarly when we click on an application it is brought on the ram from the hard disk and then it runs.
- Memory
Memory wise it comes as 2gb, 4gb, 8gb , etc. now greater the memory greater will be the number of applications it can hold.
- MHz
It is the frequency of your ram which is a factor that decides the speed of your ram resulting to the speed of your pc or mobile.It is written after the Ddr term for example 8gb DDR-4 2133 mhz ram where 2133 mhz is the frequency.
- Latency
A RAM module’s CAS (Column Address Strobe or Signal) latency is how many clock cycles in it takes for the RAM module to access a specific set of data in one of its columns (hence the name) and make that data available on its output pins, starting from when a memory controller tells it to. Another way to think of it is how many RAM clock cycles it takes for the RAM to output data called for by the cpu. A RAM kit with a CAS of 16 takes 16 RAM clock cycles to complete this task. The lower the CAS latency, the better.
- DDR (Double data rate): It is the advanced version of SDRAM called DDR-SDRAM or SDRAM II. It can transfer data twice as fast as SDRAM.
Tech geek 