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Brain vs. Computer — What's the Difference?

By Tayyaba Rehman & Urooj Arif — Published on February 2, 2024
The brain is an organic, complex organ governing thought, emotion, and bodily functions, while a computer is a man-made device for processing and storing data.
Brain vs. Computer — What's the Difference?

Difference Between Brain and Computer

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Key Differences

The human brain is a biological organ, possessing the remarkable ability to process complex emotions, thoughts, and consciousness, a feature yet to be fully replicated in computers. Computers, created by humans, excel in data processing and storage but lack the intrinsic capabilities of human emotion and consciousness.
Brains are naturally adaptive, capable of learning and evolving through experiences and neural plasticity, an aspect computers mimic through artificial intelligence but do not genuinely possess. Computers operate through predefined algorithms and programming, lacking the spontaneity and intuitive decision-making of the human brain.
The brain's processing is parallel, handling multiple tasks simultaneously, akin to a vast, interconnected network. In contrast, traditional computers operate largely on sequential processing, executing one instruction at a time, though advancements in parallel computing are narrowing this gap.
In terms of energy efficiency, the human brain is remarkably efficient, operating on roughly 20 watts of power, a stark contrast to the significant energy requirements of high-performing computers. Furthermore, the brain's ability to recover and rewire itself after injury showcases a level of adaptability and resilience not found in computers.
The brain's storage capacity and method of recalling memories are vastly different from a computer's; it stores memories associatively and contextually, unlike the structured and precise data storage of computers. Additionally, the human brain continues to mystify scientists in its complexity, while computer operations, though complex, are ultimately understandable and predictable.
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Comparison Chart

Composition

Organic, biological organ.
Man-made, electronic device.

Processing Method

Parallel, associative, and intuitive.
Sequential, algorithmic, and logical.

Learning and Adaptation

Naturally adaptive, learns from experiences.
Programmed learning, lacks spontaneity.

Energy Efficiency

Highly energy-efficient.
Varies, generally less energy-efficient.

Memory and Storage

Associative, contextual, flexible.
Structured, precise, limited flexibility.

Compare with Definitions

Brain

The organ in the head responsible for thought and feeling.
The human brain is capable of incredible creativity.

Computer

A machine that performs calculations automatically.
The computer solved the complex equation in seconds.

Brain

The control center of thought, emotion, and bodily functions.
Her brain quickly solved the complex puzzle.

Computer

A system for executing programmed instructions.
The computer runs several applications simultaneously.

Brain

The source of intelligence and consciousness.
The brain is often a subject of study in psychology.

Computer

A device used for accessing the internet and software.
He used his computer to research the topic.

Brain

The main coordinator of sensory and motor activities.
The brain processes all the information we perceive.

Computer

A device that computes, especially a programmable electronic machine that performs high-speed mathematical or logical operations or that assembles, stores, correlates, or otherwise processes information.

Brain

A person with outstanding intellect.
He was known as the brain of the project team.

Computer

Such a device along with peripherals, especially a monitor, keyboard, and mouse.

Brain

The portion of the vertebrate central nervous system that is enclosed within the cranium, continuous with the spinal cord, and composed of gray matter and white matter. It is the primary center for the regulation and control of bodily activities, receiving and interpreting sensory impulses, and transmitting information to the muscles and body organs. It is also the seat of consciousness, thought, memory, and emotion.

Computer

One who computes.

Brain

A functionally similar portion of the invertebrate nervous system.

Computer

A person employed to perform computations; one who computes.

Brain

The mind
The plan took shape in her brain.

Computer

A male computer, where the female computer is called a computress.

Brain

Intellectual ability; intellect
An actor not known for his quick brain.

Computer

A programmable electronic device that performs mathematical calculations and logical operations, especially one that can process, store and retrieve large amounts of data very quickly; now especially, a small one for personal or home use employed for manipulating text or graphics, accessing the Internet, or playing games or media.
I spend around 6 hours a day at the computer.
As well as saving the photos on my computer, I have them backed up on a USB drive.
David is a computer expert.
Janet works at the computer store.

Brain

Often brains Exceptional intellectual ability; intelligence
Has brains and good looks.

Computer

One who computes.

Brain

(Informal) A highly intelligent person
We knew the new kid was a brain as soon as she started talking.

Computer

An electronic device for performing calculations automatically. It consists of a clock to provide voltage pulses to synchronize the operations of the devices within the computer, a central processing unit, where the arithmetical and logical operations are performed on data, a random-access memory, where the programs and data are stored for rapid access, devices to input data and output results, and various other peripheral devices of widely varied function, as well as circuitry to support the main operations.

Brain

Often brains The primary director or planner, as of an organization or movement.

Computer

Same as digital computer.

Brain

The control center, as of a ship, aircraft, or spacecraft.

Computer

A machine for performing calculations automatically

Brain

To hit on the head or kill by hitting on the head.

Computer

An expert at calculation (or at operating calculating machines)

Brain

The control center of the central nervous system of an animal located in the skull which is responsible for perception, cognition, attention, memory, emotion, and action.

Computer

An electronic device for storing and processing data.
She saved the report on her computer.

Brain

A part of the brain, especially associated with particular mental functions, abilities, etc.

Computer

A tool for digital communication and multimedia.
Her computer was essential for video conferencing.

Brain

(informal) An intelligent person.
She was a total brain.

Brain

(plurale tantum) A person who provides the intelligence required for something.
He is the brains behind the scheme.

Brain

(in the plural) Intellect.
She has a lot of brains.

Brain

(in the singular) An intellectual or mental capacity.
Gerald always acts like he doesn't have a brain.

Brain

By analogy with a human brain, the part of a machine or computer that performs calculations.
The computer's brain is capable of millions of calculations a second.

Brain

Oral sex.

Brain

Mind.
I have too much on my brain''' today.

Brain

A loose compartment of a backpack that straps on over the top opening.

Brain

(transitive) To dash out the brains of; to kill by smashing the skull.

Brain

To strike (someone) on the head.

Brain

To destroy; to put an end to.

Brain

To conceive in the mind; to understand.

Brain

The whitish mass of soft matter (the center of the nervous system, and the seat of consciousness and volition) which is inclosed in the cartilaginous or bony cranium of vertebrate animals. It is simply the anterior termination of the spinal cord, and is developed from three embryonic vesicles, whose cavities are connected with the central canal of the cord; the cavities of the vesicles become the central cavities, or ventricles, and the walls thicken unequally and become the three segments, the fore-, mid-, and hind-brain.

Brain

The anterior or cephalic ganglion in insects and other invertebrates.

Brain

The organ or seat of intellect; hence, the understanding; as, use your brains.

Brain

The affections; fancy; imagination.

Brain

A very intelligent person.

Brain

The controlling electronic mechanism for a robot, guided missile, computer, or other device exhibiting some degree of self-regulation.

Brain

To dash out the brains of; to kill by beating out the brains.
There thou mayst brain him.
It was the swift celerity of the death . . . That brained my purpose.

Brain

To conceive; to understand.
'T is still a dream, or else such stuff as madmenTongue, and brain not.

Brain

That part of the central nervous system that includes all the higher nervous centers; enclosed within the skull; continuous with the spinal cord

Brain

Mental ability;
He's got plenty of brains but no common sense

Brain

That which is responsible for one's thoughts and feelings; the seat of the faculty of reason;
His mind wandered
I couldn't get his words out of my head

Brain

Someone who has exceptional intellectual ability and originality;
Mozart was a child genius
He's smart but he's no Einstein

Brain

The brain of certain animals used as meat

Brain

Hit on the head

Brain

Kill by smashing someone's skull

Common Curiosities

What is the primary function of the brain?

The brain's primary functions include processing thoughts, emotions, and coordinating bodily functions.

How does the brain process information?

The brain processes information through a complex network of neurons, often simultaneously.

What are computers mainly used for?

Computers are mainly used for data processing, storage, and accessing information.

Can the brain multitask effectively?

The brain can handle multiple tasks, but its effectiveness varies among individuals.

How do computers store data?

Computers store data in a structured manner, using binary code.

Can the brain repair itself?

Yes, the brain has some ability to repair and rewire itself, known as neuroplasticity.

Are computers capable of learning?

Computers can simulate learning through programming and artificial intelligence.

Do computers have a limit on data storage?

Yes, computers have a finite storage capacity, depending on their hardware.

Can computers function without electricity?

No, computers require electricity or battery power to function.

How does the brain learn new information?

The brain learns through experiences, forming and strengthening neural connections.

Can computers emulate human emotions?

Computers can simulate emotions but cannot genuinely experience them.

Are there tasks the brain can do that computers cannot?

Yes, tasks involving complex emotions, consciousness, and abstract thinking are unique to the brain.

Is the brain energy efficient?

Yes, the brain is highly energy-efficient, functioning on relatively low power.

Are computers able to make intuitive decisions?

Computers lack intuition; they make decisions based on programmed algorithms.

What is neuroplasticity?

Neuroplasticity is the brain's ability to reorganize itself by forming new neural connections.

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Author Spotlight

Written by
Tayyaba Rehman
Tayyaba Rehman is a distinguished writer, currently serving as a primary contributor to askdifference.com. As a researcher in semantics and etymology, Tayyaba's passion for the complexity of languages and their distinctions has found a perfect home on the platform. Tayyaba delves into the intricacies of language, distinguishing between commonly confused words and phrases, thereby providing clarity for readers worldwide.
Co-written by
Urooj Arif
Urooj is a skilled content writer at Ask Difference, known for her exceptional ability to simplify complex topics into engaging and informative content. With a passion for research and a flair for clear, concise writing, she consistently delivers articles that resonate with our diverse audience.

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