How Does a Computer Work and What Is Inside?

It ‘s a dim-witted question, but one that everyone ponders from time to time : how does that calculator in front of you actually work ? Computers have evolved from simple devices to a 21st-century staple in equitable a few decades. But despite being a relatively newly engineering, most people have no idea how a bare rectangle—small enough to fit your backpack—is adequate to of everything from building complex mathematics to playing video recording, sound recording, and running sophisticate software .
so, how does a calculator knead, and what components do you need to make one ?

What Is a Computer?

A calculator is a programmable electronic device able of processing information. Composed of hardware and software, computers operate on two levels : they receive data through an input path, either live or through a digital storage unit of measurement, and send out an output .
modern computers should n’t be mixed up with the outdated job occupation of computers in the nineteenth hundred. While they both perform long and boring mathematical calculations and data action, one is a person, and the other is a machine .

How Does a Computer Work?

A computer processes the input signal to produce the hope output, but how does a machine outperform the human brain ?
conventional computers do n’t try to mimic the human genius. alternatively, they run commands consecutive, with data constantly moving from stimulation and memory to the device ‘s central processing unit. Neuromorphic computers, on the other hand, work data at the lapp time, making them faster, energy-efficient, and closer to the structure of the human genius .
MAKEUSEOF VIDEO OF THE DAY overall, a computer works in four steps :

  1. Input: Input is the data before processing. It comes from the mouse, keyboard, microphone, and other external sensors.
  2. Storage: The storage is how the computer retains input data. The hard drive is used for long-term and mass data storage while the data set for immediate processing is stored temporarily in the Random Access Memory (RAM).
  3. Processing: Processing is where input gets transformed into output. The computer’s Central Processing Unit (CPU) is its brain. It’s responsible for executing instructions and performing mathematical operations on the input data.
  4. Output: Output is the final result of data processing. It can be anything from images, video, or audio content, even the words you type using a keyboard. You can also receive the output through a printer or a projector instead of directly through your device.

The Hardware Components of a Computer

hardware components of a computer
The more dim-witted the undertaking a calculator has to perform, the easier it is to build. That ‘s why older computers are simplistic compared to their modern counterparts, with limited capabilities .
The hardware components are everything you can physically touch and see in a calculator, including all the stimulation and output devices from keyboards, mics, and mouse to screens and speakers .
Hardware is besides the physical processing parts like storage, CPU, graphics card, sound card, RAM, and motherboard, all of which play an authoritative function in contemporary computers .


The motherboard is the elementary communication hub between the calculator ‘s hardware components. It ‘s the independent circuit where everything needs to physically connect—except for ones relying on Bluetooth or Wi-Fi. Without a motherboard, it ‘s impossible to have a officiate modern computer .


If the motherboard is the communications hub, then the CPU is the communications director. It receives and interprets the stimulation and instructions and sends out signals to early components of precisely what to do with the data for the craved end product. The more cores a CPU has, the more operations it can perform at the like meter .


The RAM is the CPU ‘s chief adjunct. alternatively of having to fish for data in a well large storage unit of measurement, RAM stores the data used by the engage system, any running software, and incoming stimulation. The bigger the capacitance of the RAM, the more heavy-weight software it can run without slowing down the device .


HDD stands for Hard Disk Drive. It ‘s the component that permanently stores your media and apps, including the engage system ( OS ). They vary in size and performance from a few hundred gigabytes ( GB ) to several terabytes ( TB ) .
You may besides encounter Solid State Drives ( SSDs ), which are another type of repositing hardware. SSDs and HDDs are utilitarian for different things, and many users combine drives to maximize performance .

Graphics Processing Unit

The Graphics Processing Unit ( GPU ) is dedicated to processing ocular imagination on your computer. knock-down GPUs are essential to rendering high-quality images and graphics or playing video games. Graphics process can either be its own components or be integrated with the CPU .

Sound Card

strait cards are responsible for processing auditory data and sending it to your speakers. similarly, the sound card can either be its branch objet d’art or integrated with the CPU .

The Software Components of a Computer

Windows 10 laptop on a wooden table
mod computers use a combination of hardware and software components that work together to process building complex inputs and outputs .
Software is a pre-written collection of instructions that tells your computer what to do. It ‘s a digital program, not a forcible part that can be seen when opening the cover of a computer or laptop.

And, like your computer hardware, different types of software perform unlike roles in the function of your computer .


firmware is where the line between hardware and software gets bleary. It ‘s software that ‘s physically etched into a patch of hardware .
Firmware is the beginning thing that kickstarts your calculator when you switch it on, a simple program that instructs your computer to launch the OS. Without it, your computer wo n’t launch your engage system or other components, and you ‘ll be stuck with hardware that you ca n’t communicate with .

Operating System (OS)

An function system is a piece of software that manages your computer ‘s hardware and software resources. similarly, without an OS, you ca n’t communicate with your calculator flush using your input devices .

The Future of Computers

Computers that follow the consecutive process model will only get cheaper, smaller, faster, and more effective. however, conventional computer design and architecture are reaching their limit. alternatively, you can expect a rise in modern computing architecture that is n’t reliant on technology first designed over 50 years ago, from the prognosis of Neuromorphic computers to more accessible Quantum computers .

Nanocomputing chip featured
Nanocomputing : Can Computers actually Be Microscopic ?
Read Next




electronic mail

About The writer
5fabad7937ec6 Anina%20Ot
Anina Ot
( 107 Articles Published )

Anina is a freelancer technology and internet security writer at MakeUseOf. She started writing in cybersecurity 3 years ago in hopes of making it more accessible to the average person. Keen on learning new things and a huge astronomy nerd .
From Anina Ot

Subscribe to our newsletter

Join our newsletter for technical school tips, reviews, free ebooks, and exclusive deals !
Click here to subscribe

source :
Category : Tech

About admin

I am the owner of the website, my purpose is to bring all the most useful information to users.

Check Also


Manage participants in a zoom meeting webinar

Call the people who attend the meet as follows Alternate host host Who scheduled the …

Leave a Reply

Your email address will not be published.