If your computer comes with elementary memory, then definitely you need a memory upgrade. There are different types of computer memories; and every memory has its own distinct functioning. In general, a computer memory has four prominent characteristics namely, volatility, mutability, accessibility, and address-ability respectively. The performance of a memory is therefore based on these virtual characteristics.
The volatile or temperamental memory is the emotional computer memory, which functions in a similar manner human emotions work. As humans have vacillating emotions and so does the computers volatile memory. Volatile needs constant power supply. If theres no power, then theres no volatile.
The dynamic and static computer memories are part of random access memory or the RAM. Both are volatile in nature, and need constant power source altogether. Dynamic memory refreshes itself after regular intervals of time, whereas the static memory doesnt refresh itself. The mutability characteristic of a computer memory is meant for reading and writing storage files, and come as immutable and mutable types respectively. It is extensively used for both secondary and primary storage purposes. ROM is a classic example of mutable and immutable storage memory which is quite crucial in writing on CDs, DVDs etc.
Sequential computer memory works great for off line storage purposes, as it is slow and all the information is gathered and accessed in a sequential order. Accessible is quite common in RAM as well as sequential memory, and gives an access to the stored files, which seemingly appears as instantaneous.
Lastly, the address-ability characteristic of memory is in three forms namely location, file, and content. For fast computer operations it is very necessary that you go for regular memory upgrade. If you are not upgrading the memory from time to time, then you are losing heavily on your computer efficiency. Memory can be purchased from third party vendors, but make it sure that you get original memory and along with the warranties, or else, in case of any technical fault, youd be at the problem end.