What Is RAM & ROM ???

RAM
It is generally known as "Random Access Memory". RAM is a form of data storage that can be accessed randomly at any time, in any order and from any physical location. The data's release from CPU are totally control by RAM. It sends the command to the screen to when and what will be the output. If your smartphone or computer having a good and powerful RAM then the performance of your device will be excellent.   

Now-a-days there are many flagship phones are available in which you will get a high RAM. In computers there are more heavy RAM's are available like the DDR3, DDR4 etc. These RAM's having a double data rate means they have more speed and less power consumption than normal RAM. So that the device processor will work properly if there are a good RAM inside the device.

Some characteristics of RAM;

• It is volatile which means its contents are lost when the device is powered off;
• It allows the computer to read data quickly to run applications.
• There are mainly two types of RAM i;e (1) Static RAM & (2) Dynamic RAM.

• RAM chips can read data faster than ROM.
• It is used for both read and write
• RAM needs electricity to flow to retain information & erased any number of times when the computer is switched off.

If you understand RAM in a simple language then it is clear that RAM helps a device to perform efficiently and fast.Your phones and computers processor may be whatever but if your device having less RAM then your device will not perform well. Phones and computers having less RAM always lag and hang. You will not able to use your device very fast. So, always choose the devices having more RAM because it will help you to work properly. 

ROM
It is also known as "Read Only Memory". ROM is a form of data storage that can not be easily altered or reprogrammed.It stores the program required to initially boot the computer. It is also a main part of your device. It is the inbuilt storage of the devices. Without ROM there are impossible to data storage. If the device have a good ROM then the device will perform excellent. Sometimes your device may be full of storage then you will notice that the phone will became slower. And the processor will also not work properly. So, by deleting some files you can create space.

Some characteristics of ROM;

• It only allows reading.
• It is non-volatile i.e; its contents are retained even when the device is powered off.
• The types of ROM include PROM, EPROM & EEPROM.

• It can read data slower than RAM.
• It will retained data without flow of electricity,data in ROM is permanently written & is not erased when you power off your computer.

Now-a-time the phone and computer manufacturers making devices having more ROM. We can get a good budget phone having 32GB to 64GB inbuilt storage/ ROM in very lower price. In computers you get more ROM as compare to smartphones. In computers you can get a ROM of 500GB, 1TB and so on. Most of the phones having a dedicated microSD card slot which provide a smartphone to add some extra storage space. But if your phone having more inbuilt storage/ ROM then you may don't need a microSD card.