RAM Examples: The 3 Memory Units You Need to Know (2023)

By Tibor Moes / Updated: June 2023

RAM Examples: The 3 Memory Units You Need to Know (2023)

RAM Examples

Imagine you’re a cook, and your kitchen countertop is the space where you prepare meals. The bigger the counter, the more dishes you can prepare at once. RAM in your computer works the same way—it provides space for your computer to perform multiple tasks simultaneously.


RAM, or Random Access Memory, is like your computer’s short-term memory. It temporarily stores data from active applications so your computer can access and process it quickly, keeping your system running smoothly.

Example 1: Dynamic Random-Access Memory (DRAM) (1970). In 1970, Intel introduced the first commercially available DRAM (Dynamic Random-Access Memory) chip, the Intel 1103. This chip started the transition from magnetic-core memory, paving the way for modern computing.

Example 2: Extended Data Out (EDO) DRAM (1990). In 1990, the Extended Data Out (EDO) DRAM was introduced, offering up to 50% more performance than its predecessor, Fast Page Mode (FPM) DRAM. EDO RAM became quite popular in mid-1990s PCs.

Example 3: DDR4 RAM (2014). DDR4 RAM, introduced in 2014, represents a significant advancement in RAM technology. With its high-speed operation, improved efficiency, and increased capacity, DDR4 RAM dramatically enhances system performance, paving the way for cutting-edge applications and sophisticated gaming experiences.

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RAM Examples In-Depth

DRAM (1970)

Imagine, for a moment, you’re in a time machine and you’ve just landed in the year 1970. This was a year of change, the birth of a new decade and, as it would turn out, the beginning of a revolution in the world of computing.

One day that year, a group of engineers at Intel had an ambitious idea. They wanted to change the very way that computers remembered things, how they stored the most immediate and necessary data for their calculations. This idea led to the creation of the Intel 1103, the first commercially available DRAM chip.

Think of the Intel 1103 as the new kid on the block who showed up with a cool new trick that no one had seen before. Before the 1103, computers primarily used magnetic-core memory, a system that was like a school blackboard—it did the job but was slow and bulky.

Now, let’s get into the magic of what the 1103 did differently. It stored each bit of information in a tiny electrical charge within a single transistor-capacitor pair called a memory cell. It was like turning that old blackboard into a sleek whiteboard, a much more efficient and easier-to-use system.

Moreover, the Intel 1103 had a dynamic nature—imagine it like an athlete who constantly has to move to stay warm. Each of the memory cells in the chip needed to be refreshed with new electricity constantly, otherwise, they would lose their information. The term “dynamic” in DRAM signifies this refreshing characteristic.

This innovative chip, with its refreshing memory cells, was capable of storing 1,024 bits of data. In 1970, that was a significant leap forward, providing a larger, faster workspace for computers to perform their tasks.

The impact of the Intel 1103 was like that of a snowball rolling down a hill, getting larger and faster. It kicked off a wave of technological innovation, making it possible for computers to become faster and more efficient. Thanks to this dramatic shift, computers were able to evolve from the giant, room-sized beasts of the 1960s to the sleek desktop machines that started to appear in the 1980s.

To wrap up, the Intel 1103 was the equivalent of the first domino falling, the spark that set the stage for a chain reaction of technological advancements. It marked the beginning of the era of DRAM, and to this day, forms the basis of the short-term memory in our computers. We have come a long way since the debut of the 1103, but it’s fascinating to remember that our modern, speedy machines owe a lot to this humble chip from the 1970s.

EDO DRAM (1990)

Now, picture this. You’re in the 1990s – the era of grunge music, “Friends,” and the dawn of the internet. Along with these cultural milestones, another significant revolution was unfolding in the world of computer memory – the introduction of Extended Data Out (EDO) DRAM.

Think back to our kitchen analogy. In the 1970s, we had gotten a bigger countertop with the introduction of DRAM. But as we cooked more complex meals (or in computer terms, ran more demanding software), we realized that our preparation and cooking process could still be faster. EDO DRAM was the answer to that.

Before EDO DRAM, computers primarily used Fast Page Mode (FPM) DRAM. Imagine FPM DRAM like a helpful but slightly slow chef who needed to finish chopping one ingredient before moving onto the next. EDO DRAM, on the other hand, was like a nimble sous-chef, who could start chopping the next ingredient while the previous one was still being tossed into the pan.

This new sous-chef got his speed from a unique feature of EDO DRAM. This technology allowed the processor to fetch the next line of data while the current one was still in use. In other words, EDO DRAM could “overlap” operations, enabling the RAM to perform tasks up to 50% faster than its predecessor, FPM DRAM.

As you can imagine, this was quite the breakthrough in the early to mid-1990s. EDO RAM became very popular, especially in PCs, and significantly contributed to the growing performance of desktop computers. It was like upgrading from a family car to a race car – everything started running a whole lot faster.

At the same time, EDO DRAM was also an important bridge between earlier memory technologies and the synchronous DRAMs that came later. The jump to EDO DRAM was like training wheels for the next giant leap in memory technology. It was a significant stepping-stone, pushing the boundaries of what was possible and paving the way for even greater advancements in the years to come.

In conclusion, EDO DRAM might seem like a relic of the past now, but its impact was transformative in the ’90s. It was a speed booster, an innovation driver, and an important chapter in the exciting story of computer memory technology. Just like the Intel 1103 before it, EDO DRAM left a lasting legacy that continues to shape the computers we use today.

DDR4 RAM (2014)

Now, let’s fast forward to the year 2014. It was the time when “Frozen” was charming audiences worldwide, the “Ice Bucket Challenge” was going viral, and in the world of computers, DDR4 RAM was about to make a grand entrance.

In this chapter of our journey, think of DDR4 RAM as the latest top-of-the-line kitchen gadget. It’s faster, more efficient, and allows you to cook even the most complex meals (or in this case, run the most demanding applications) with ease.

But what makes DDR4 RAM stand out from its predecessors? Let’s break it down.

First, there’s speed. DDR4 RAM operates at a higher speed than earlier generations. Imagine having a conversation where you could speak and listen at the same time. That’s what DDR4 does. It has a higher data rate, which means it can process more information simultaneously, making your computer run more smoothly.

Then, there’s capacity. DDR4 RAM can store more data in the same amount of physical space. It’s like getting a bigger countertop in the same-sized kitchen. This increase in density means your computer can handle more applications at once, which is crucial for advanced tasks like gaming, 3D rendering, and video editing.

And finally, there’s energy efficiency. DDR4 RAM requires less power to operate. It’s like replacing your old incandescent bulbs with energy-saving LEDs. Less power means less heat, which can help your computer run cooler and extend its lifespan.

When DDR4 RAM was introduced in 2014, it was like a breath of fresh air. It brought with it the promise of faster, more powerful computing, and it didn’t disappoint. Gamers, graphic designers, video editors, and other high-demand users were able to push the boundaries of what they could achieve with their computers.

In summary, DDR4 RAM is the culmination of decades of advancements in computer memory. From the humble beginnings of the Intel 1103, through the speed-boosting era of EDO DRAM, we’ve arrived at DDR4 RAM, the current powerhouse of modern computing. It’s a testament to the progress we’ve made, and a hint at the exciting possibilities still to come in the future of computer technology.


From the birth of the Intel 1103, through the speed revolution of EDO DRAM, to the impressive performance of DDR4 RAM, we’ve traced the fascinating evolution of computer memory. Each innovation has been a leap forward, enabling our computers to become more powerful, efficient, and capable. Today, we enjoy the fruits of these technological breakthroughs every time we power up our devices. And if the past is any indication, we can only imagine the exciting advancements that still await us on the horizon of RAM technology.

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Frequently Asked Questions

Below are the most frequently asked questions.

Why is RAM so important to a computer?

RAM is like the computer’s short-term memory. It temporarily stores data from the applications that are currently in use, enabling the computer to access this information quickly. The more RAM a computer has, the more tasks it can handle simultaneously, resulting in smoother, faster operation.

How does DRAM differ from other types of RAM?

 DRAM, or Dynamic Random Access Memory, stores each bit of information in a separate capacitor within an integrated circuit. It’s called ‘dynamic’ because it needs to be refreshed with electricity constantly to maintain the information it holds. This characteristic distinguishes it from Static RAM (SRAM), which doesn’t need to be refreshed.

What does the DDR in DDR4 RAM mean?

DDR stands for “Double Data Rate.” It means that the RAM can transfer data twice per clock cycle, significantly enhancing the speed at which it operates. The ‘4’ in DDR4 signifies that it’s the fourth generation of this technology, each one more advanced than the last.

Author: Tibor Moes

Author: Tibor Moes

Founder & Chief Editor at SoftwareLab

Tibor is a Dutch engineer and entrepreneur. He has tested security software since 2014.

Over the years, he has tested most of the best antivirus software for Windows, Mac, Android, and iOS, as well as many VPN providers.

He uses Norton to protect his devices, CyberGhost for his privacy, and Dashlane for his passwords.

This website is hosted on a Digital Ocean server via Cloudways and is built with DIVI on WordPress.

You can find him on LinkedIn or contact him here.

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