What is the RAM Full Form? | Types Of RAM

Learn everything there is to know about RAM, including its full form, how it works, and the different types available. Please find out how RAM impacts computer performance and how to install and upgrade it. Understand how RAM affects modern computing.


The random access memory in a computer plays an important role. It’s a type of volatile memory that stores data temporarily whilst it is being processed, allowing information to be accessed and modified quickly. 

RAM is an essential component of computer performance. We’ll explore how it works, the different types available, its impact on computer performance, and how to install and upgrade RAM.

What is RAM, and What does it do?

Data is temporarily stored in RAM as the computer processes it. RAM, or random access memory, allows the computer to quickly access and manipulate information as needed, making it an essential component of any computer system. When the computer is powered off, RAM erases itself, as opposed to non-volatile memory, such as hard drives and solid-state drives, which keep data even when turned off.

The RAM full form (Random Access Memory)

The full form of RAM is ‘random access memory.’ Data can be stored in any location in the memory and accessed randomly rather than in a predetermined sequence. The RAM serves as the primary source of data storage and retrieval in the computer, also known as the ‘main memory’ or ‘primary storage.’

Types of RAM

RAM is available in several types, each with its characteristics and uses. The most common types are:

  1. DRAM (Dynamic RAM): 

It is cheaper and slower than other types of RAM but is commonly used in laptops and desktop computers because it stores each bit of data in a separate capacitor within a memory cell.

  1. SRAM (Static RAM): 

A bi-stable flip-flop is used to store each bit of data. It is faster and more expensive than DRAM and is commonly used in systems instead of DRAM to store cache memories.

  1. SDRAM (Synchronous DRAM): 

This type of RAM in desktop computers and servers allows faster data transfer rates because it is synchronized with the system clock.

  1. DDR SDRAM (Double Data Rate SDRAM): 

It is commonly found in newer desktop computers and laptops because it allows data to be transferred twice per clock cycle, resulting in higher transfer rates.

  1. RDRAM (Rambus DRAM): 

RAMS that use Rambus to transfer data are faster than other types of RAM but more expensive, and in modern systems, they have largely been replaced by DDR SDRAMs.

  1. GDDR (Graphics Double Data Rate): 

Graphics-specific RAM is designed specifically for graphics cards and other graphics-intensive apps. It has a higher data transfer rate than other RAM types and is designed to handle large amounts of graphical information.

  1. VRAM (Video Random Access Memory): 

It stores and accesses frame buffer data, which displays graphics on the screen. It is similar to GDDR RAM but is designed specifically for graphics cards and other graphics-intensive applications.

The main differences between SRAM and DRAM.

There are two primary types of RAM in modern computers, static RAM (Static RAM) and dynamic RAM (Dynamic RAM). Although both types store temporary data during the computer’s operation, they have some main differences:

1. Speed: 

SRAM is generally faster than DRAM because it does not have to be refreshed periodically, making it ideal for cache memory, which is critical for fast data access. However, DRAM remains sufficient for most general-purpose applications.

2. Cost: 

It is more expensive to manufacture SRAM than DRAM because it requires more transistors to store each bit of data. This makes it less common in mass-produced consumer devices, but it still exists in some high-end systems. Laptops, desktop computers, and other consumer devices use DRAM more frequently and for a lower price.

3. Power consumption: 

The SRAM consumes more power than the DRAM since its transistors need to be continuously charged to retain data, making it unsuitable for portable devices where power consumption is a concern. Laptops and other battery-powered devices benefit from DRAM because it consumes less power.

4. Capacity: 

A smaller amount of SRAM is typically used as cache memory rather than as main memory because it requires more transistors per bit of data to store each bit. A larger amount of DRAM is typically used as main memory since it has a higher capacity.

How do RAM speeds affect Performance?

RAM speed, also known as memory clock speed or frequency, refers to the data transfer rate between the memory and the processor. For certain tasks, RAM with a faster speed can provide better Performance.

The speed of RAM can be affected by several factors:

  1. Memory clock speed: 

The RAM’s clock speed is determined by its megahertz (MHz) or gigahertz (GHz) and determines the number of cycles it can complete per second. A faster clock speed results in faster data transfer rates and better Performance.

  1. CAS latency: 

An increased CL value generally indicates a faster RAM, as it can quickly access data. The CAS latency, or CL, is determined by the number of clock cycles for the RAM to respond to a request for data.

  1. Bus width: 

The bus width describes the number of bits that can be transferred at once, resulting in a faster performance when more data is transferred.

How to install and upgrade RAM?

Installing or upgrading RAM in a desktop computer is as easy as following these steps:

Step: 1

The new RAM modules, a Phillips-head screwdriver, and an anti-static wristband (optional) are all necessary.

Step: 2

If you are working on the computer, shut it down and unplug it from the wall outlet. This will prevent any accidents.

Step: 3

It will depend on the model of your computer, but most cases can be opened by removing a few screws from the back or sides. Other cases will require releasing a latch or button.

Step: 4

RAM slots can be found on the motherboard, the large circuit board inside the computer. RAM slots have clips on top and bottom that allow you to install RAM.

Step: 5

It is necessary to remove the existing RAM modules before you can upgrade. Find the clips on both ends of the RAM module and gently push them outward to free it. The module should then come out easily.

Step: 6

You should carefully insert the new RAM modules into the slots, aligning the notches on the modules with the slots on the motherboard. Once the modules are in place, gently press down on the ends until they snap into place. Repeat this process for any additional modules you may need.

Step: 7

Once you have installed the new RAM modules, you can replace the case side panel and secure it with the screws you removed earlier. Plug in the power cord and turn on the computer to check if everything is working.


You can use the “System Information” utility in Windows or the “System Profiler” utility in macOS to check if the system has recognized your new RAM once the computer has booted up. The amount of RAM installed, and the speed of each module will be shown here.


Any computer system relies heavily on random access memory (RAM), a volatile type of memory that stores data to facilitate quick access and manipulation of information as the computer processes it. ‘Random access memory,’ as its full name implies, is a type of memory that enables data to be stored anywhere in the memory and accessed at any time. 

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