Theory- 49 :- RAM

RAM

Ram stands for random access memory. Ram is a form of computer data storage that stores data and machine code currently being used. A random-access memory device allows data items to be read or written in almost the same amount of time irrespective of the physical location of data inside the memory. Usually, more than one bit of storage is accessed by the same address, and RAM devices often have multiple data lines and said to be “8 bit or 16 bit” etc.

Types of RAM

Two main types of RAM are:

• Static RAM
• Dynamic RAM

 

Static RAM

 

Static RAM is the full form of SRAM. In this type of RAM, data is stored using the state of a six transistor memory cell. Static RAM is mostly used as a cache memory for the processor (CPU).

 

Dynamic RAM

 

DRAM stands for Dynamic Random Access Memory. It is a type of RAM which allows you to stores each bit of data in a separate capacitor within a specific integrated circuit. Dynamic RAM is a standard computer memory of the many modern desktop computers.

 

This type of RAM is a volatile memory that needs to be refreshed with voltage regularly. Else it loses the information stored on it.

How RAM works?

When we start our computer, then first of all programs, instructions and data are temporarily loaded/ stored in RAM. When RAM ready for the instructions and data then CPU performs the arithmetic and logical operations. 
Most of the computers have multiple slots for putting the RAM on the motherboard. .

Advantages of RAM

• RAM is a must to store the data for processing on CPU.
• More RAM is a factor to increase the speed of a computer.
• If CPU wants to read the data from RAM, then it is fast as compared to data access from hard disk, CD, DVD, Floppy, and USB.

Shortcomings of RAM

• Less RAM is a factor to decrease the speed of a computer.
• If CPU wants to read the data from RAM, then it is slow as compared to data access from registers and cache.

DVD RAM Advantages

DVD-RAM discs can be rewritten over many many times. For example it can be over 100,000.

Data storage on DVD-RAM is reliable and can be store for many years.

Total storage capacity of DVD-RAM is 4.7GB and 9.4GB If your disc is double sided.

The speed of DVD-RAM for overwriting the data is much faster and easier than CD/DVD-RW.

Advantages Of Dual Channel RAM

• Dual channel RAM means that we are adding more channels of communication between the memory and the memory controller. So its increase data transfer speed. 

Nano RAM Advantages

• Faster
• Low power consumption
• Data storage
• Boot up
• dense