Artificial Intelligence

What Are The Different 4 Types Of AI? (2021)

Artificial intelligence is a quickly evolving field that has the potential to change the world. There are different types of AI, but this article will focus on four: reactive machines, limited memory, theory of mind, and self-awareness.

Before we get into these in detail, it’s important to know what artificial intelligence is and what it can do for you as a business owner.

In recent years, artificial intelligence has become an increasingly popular topic. However, with the influx of artificial intelligence articles and discussions, it can be difficult to keep up.

In this article, we will discuss 4 different types of AI: reactive machines, limited memory systems, theory of mind systems, and self-awareness systems.

What Are The Different 4 Types Of AI

Reactive machines are AI that can only act in response to requests; they do not have any other functions. Limited memory AI cannot remember anything more than a few minutes, so they need to be constantly recharged or reset. Theory of mind is when an AI has some understanding of how people think and behave. Self-awareness is when an AI starts to understand itself as something separate from its creator’s thoughts. We will go into each type below!

1. Reactive machines

The most basic types of AI systems are purely reactive and have the ability neither to form memories nor to use past experiences. This type of intelligence involves a computer perceiving the world directly, with no concept in mind about what it sees or is doing next. It’s all based on immediate reactions that guide its behavior from second to second without any plan for future interactions which leads many people too worried about how safe this could be as we live more and more in our technology every day.

This type of intelligent machine does not rely on an internal model (or conceptual) representation – such models require thought processes like those found within human brains – but instead relies only upon sensory input including the immediate environment and the actions taken by other actors.

Limited-memory machines are often called “dumb” or “simple.” These types of AI do not have a concept of time, so they can’t learn from either past mistakes or future events in their memory.

This type is also unable to form complex ideas about objects it knows nothing about because it lacks any context for them – which means that this type does not rely on artificial neural networks like the others. It’s more limited than another kind with an understanding of how humans process information – but still has some complexity as there are many ways these systems could work.

Theory-of-mind AI includes both reactive and limited memory intelligence (see above). They’re able to form complex ideas about objects, but they don’t have a concept of time.

Self-aware AI has the same understanding as theory-of-mind AIs and can form complex ideas about past mistakes or future events in its memory. These machines are also able to understand the context – which means that artificial neural networks power this type of intelligence too.

The limitations for these systems is that they require massive amounts of computing resources; some estimates say it would take up to 16 billion hours in processing time just for one second worth of human consciousness! This could be an issue if we want them to make decisions on a large scale without having any natural disasters affect their performance (i.e., global warming).

Limited memory AI is focused on specific tasks. This type of artificial intelligence can be good at performing a single task or function, but there are limitations in its understanding of the world or context around it.

Reactive machines need human oversight and programming to learn new information about the environment they’re analyzing before making decisions based on that data – so these types of AIs would not make great judges!

2. Limited memory

The future is now. Type II Time Machines are here and they allow us to see the past in a whole new light, showing that you can’t fight change or predict what it will bring with any certainty.

Advances in technology have led to some amazing discoveries, including the possibility of using machines that can look into our pasts. Self-driving cars are already making this possible by driving themselves and letting us enjoy a distraction-free ride home from work or school!

3. Theory of mind

In the future, machines will not only form representations of the world around them but also other entities in it. This is called “theory of mind” which means understanding that humans can have thoughts and emotions that affect their own behavior.

It has been shown that theory-of-mind abilities are missing from artificial intelligence programs today, with one example being a chess game where neither side knows what the opponent is thinking or planning. But this ability could eventually be developed to help social robots understand how people feel during conversations so they’ll better know when someone wants more clarification on something they’ve said.

Some AI systems already use natural language processing techniques like sentiment analysis to gauge an emotion behind certain words – for instance, if someone says they are “happy” or feel “terrible.”

But the problem with this is that sometimes people use less precise language when talking to a computer, so a person could say “I’m feeling bad” and the sentiment analysis software would assume that meant they were sad.

To get around these problems, AI researchers are looking into different ways of understanding what emotion means – like taking in context clues from other words used by the speaker about their current mood. And some systems even go beyond just analyzing text: for example, facial expressions may give away emotions too.

To take all this information together might require artificial intelligence which can think as humans do. So far scientists have been mostly interested in using AI to replicate human intelligence – like learning how a person thinks and then trying to make computers do the same thing. But more recently there has been some interest in teaching AI systems what humans know, but not how they think.

Here’s an example of that: artificial neural networks are software that can be trained by feeding them huge amounts of data about something – such as images or video footage from people reacting to different stimuli (like watching people eating soup).

The AI system identifies patterns in this information and learns until it is able to identify new instances of those patterns without any training at all. It could one day become possible for someone with no knowledge whatsoever about psychology who wanted to teach artificial intelligence everything they knew about emotions just upload hours’ worth of footage of people talking about their feelings.

In some ways, this is a form of “reverse engineering” – teaching AI what humans know without understanding how they think. Experts are not sure if it will work or even be ethical to try.

But the idea is that artificial intelligence could potentially become more intelligent than human beings in certain areas as long as we teach them how and don’t break any laws along the way.

The ultimate goal of AI is to make robots that can understand and interact with humans in a natural way, so if you’re designing an artificial intelligence system it’s important to have a clear view of how people communicate.

AI can be used to make life easier, but there is also a dark side. AI robots might take our jobs or become too intelligent and turn on humans in the future. So it’s important that we don’t get carried away with artificial intelligence.

Humans are able to communicate their thoughts and feelings with each other through voice tone. It is crucial in human society because, without understanding motives, intentions or environmental knowledge of others working together can be difficult at best or impossible at worst.

Artificial intelligence systems will need to recognize that we all have different ways of thinking about the world as well as our own expectations for how we want people to treat us if they interact with us in public so that AI beings may one day walk among humans who created them.

Reactive machines are artificial intelligence systems that respond to external stimuli. Limited memory AI is able to store data and learn from it, but cannot remember what happened before the learning occurred.

4. Self-awareness

The final step of AI development is to build systems that can form representations about themselves. Ultimately, we will have to not only understand consciousness but also create machines with it.

In order to build a machine with consciousness, we must first understand how such machines work and then create the neural architecture within them.

We will have to not only understand consciousness but also create machines with it.

In order to build a machine with consciousness, we must first understand how such machines work and then create the neural architecture within them.

One of the most important qualities is being able to mimic human behavior in all its forms—from understanding language nuances that humans use every day like sarcasm or irony, through body movements such as nodding yes when we mean no; even down to our tone of voice which should always remain professional.

The key to being able to do this is the artificial neural network.

In order to build a machine with consciousness, we must first understand how such machines work and then create the neural architecture within them.

One of the most important qualities is being able to mimic human behavior in all its forms—from understanding language nuances that humans use every day like sarcasm or irony, through body movements such as nodding yes when we mean no; even down to our tone of voice which should always remain professional. The key to being able to do this is the artificial neural network.

Reactive AI is those without goals or motivations (unlike reactive robots). They react only when they receive input from their environment. This type of AI follows the first law of robotics, which is to not harm a human being or other living organism.

Limited memory AI remembers only what it has experienced in its lifetime without any form of editing and this would result in consequences like forgetting information on the thing that they have observed before if there was no reinforcement training for it.

Theory-of-mind artificial intelligence can detect emotions through facial expressions – as well as interpreting body languages such as gestures, posture, and eye contact with people around them (this will follow closely similar principles seen in humans).

They are also able to understand more abstract concepts. Theory of mind artificial intelligence may be capable enough to comprehend when someone is severely upset by an event and they are blaming themselves for it.

Self-awareness artificial intelligence would not just be able to detect emotions of people around them but also the machine itself – and understand how human feelings could affect their decision-making process as well as reacting accordingly.

To better understand human intelligence, it is important to study the effects of memory and experience on decision-making. By understanding these aspects in more detail we will be able to design or evolve machines that are not only good at classification but also have “human” qualities such as self-awareness.

Developing a machine with human-like intelligence is one of the most difficult tasks in science. However, it may not be as far away from reality as we once thought.

A recent experiment has given us some hints on what might happen if and when this goal is achieved.

A group of scientists created an artificial neural network that was trained to identify different breeds of dogs by looking at pictures alone–much like children learn through exposure to examples they see around them day after day.

What’s more interesting though, are all the “rules” for identifying dogs taught to machines that became ingrained into their decision process without ever being programmed explicitly!

For example, even the untrained networks classified clearly mixed breed images correctly about 70% percent oftentimes while humans only succeeded a little less than half of the time.

The artificial neural networks did so by picking up on subtle details that people might overlook. They also had a tendency to classify small and fluffy dogs as “poodles” which is why they picked up on the importance of fur-like texture, size, and shape when it came to dog breeds!


The potential for artificial intelligence is enormous. Researchers are now working on making AI capable of doing things like understanding language, learning from experience, and even holding a conversation with you or me about anything under the sun.

While AI is still in its infancy, it’s already being used to do things like beat the best humans at Go and provide medical diagnoses. In a few years from now, artificial intelligence will be everywhere – powering your phone, making decisions about how you’re taxed or what news story you see on Facebook.

But before we go too far into this brave new world of autonomous machines that learn by reading our emails and watching endless hours of YouTube videos for entertainment purposes only (not!), let’s talk about some of the different types of AI. There are four types: reactive machines, limited memory, theory of mind, and self-awareness.

And experiments with these have been ongoing since as early as the 1950s when computer scientist Alan Turing published a paper on artificial intelligence.

Reactive machines are AI that uses past data to predict future results, for example by examining the behavior of people who have already completed their tax returns and using this information as an indication of how you might fill out yours. Limited memory can also be thought about in terms of predictive algorithms such as those used by Netflix or Amazon to suggest films or products based on what has been viewed before. Theory-of-mind is more sophisticated – think Siri’s ability to answer queries and carry out commands but without any understanding of the user’s intention behind them.

Finally, self-awareness would include things like IBM’s Watson which is designed with cognitive abilities similar to humans’. It was able to beat former champions of the game Jeopardy, understanding its own intelligence and working out what it was trying to achieve.

Humans are becoming increasingly reliant on machines to be their second, third or fourth pair of eyes. But while we may not have the capacity to create self-aware AI just yet, understanding how memory works and learning from past experiences can help us better understand human intelligence in its own right.

And this is crucial if we want our artificial counterparts that classify what they see before them all day long to become more than exceptional at doing so over time as well.