PCB Computer: The Applications In Different Industries

PCBs are one of the best electronic components that have hit the electronics industry. So, it’s no surprise that you can find them in most electronics. Also, electronics, computers, and laptops aren’t left out. So, these devices use a PCB computer—a thin instrument with delicate circuitry that forms the foundation for numerous computer components.

Indeed, this article will go deeper into the topic by explaining the computer PCB, how it applies in different industries, its wiring boards, and more.

Are you ready? Let’s get the ball rolling.

What is a Computer PCB?

The PCB is a thin board with conductive pathways printed or etched on the board surface.

Also, the device forms a base for different computer components like the network interface cards, controller cards, expansion cards, and video cards. And the details link to the motherboard—a printed circuit board as well.

Even though PCBs relate to computers, it’s useful for other electronic devices like tablets, TVs, cellphones, digital cameras, etc.

In addition, a computer has a Process Control Block that works as a PCB. 

Also, the process control block has a data structure located in a system kernel. 

Plus, the critical function of this device is to store information. Hence, the PC runs its process after the operating system registers the PCB data.

Computer Electronics Industry Application

In the electronics field, the computer industry has a broad domain. And the foundation of electronic PCBs was born from computer invention.

So, when scientists came up with the first-ever computer, it was massive and used vacuum tube technology. Consequently, the device dissipated excess heat, consumed electricity, and took up a lot of space.

So, they decided to create a more compact machine that would do the opposite. As a result, semiconductor devices came into play, and compatible computers became a reality.

That said, there are numerous PCB applications in the computer industry like:

The central processing unit (CPU)
  • SD-Cards, Graphics processing unit (GPU), RAMs, and ROMs
SD card

SD card





  • Motherboard
Motherboard with chip

Motherboard with chip

  • Computer mouse
Computer mouse
  • Laptops and Notebooks
  • Microcontroller keyboards and LED screens

Other office equipment that uses PCBs include:

  • Facial recognition machine
  • Printers
  • Thumb impression machine
  • Metal detectors
  • Smoke and fire alarm system
  • Fax machine and scanners
  • Walkthrough scanning doors, etc.

In addition, the personal computers industry uses special PCBs (high density interconnect PCB) that have a complex circuit design and multi-layer boards. Plus, these high-density PCBs have a standard thickness with an average 2-layer board.

Also, the PCB has QFP, BGA, and QFN IC packages. Plus, they are pretty expensive and use unique manufacturing processes like AOI, ENIG, flying probe test, and X-Ray. Further, it would help if you had a robot during the component assembly on the PCBs to perform tasks like reflow soldering, automatic pick & place, etc.

But, it’s vital to take precautionary handling measures, considering that most components are Electrostatic sensitive devices (ESD).

A ce and Defense

The PCBs in this industry usually demand high reliability because the circuits will be exposed to harsh chemicals, environmental conditions, contaminants, etc. 

Hence, this type of PCB should have zero tolerance to error in functionality, high grade, and high quality. Further, before any PCB qualifies in this industry, it must pass the electrical, vibration & shock, and high-temperature test.

Also, the PCBs have a mandate to meet class 3 standards. And this class requires electronic products to offer continued performance without downtime in harsh conditions.

  • Your components must be Mil-spec grade with tight tolerances ranging from 1 – 2%
  • The design of your PCB should handle the maximum current load
  • Clean and shield clock signals by creating physical shielding in the design stage
  • If heat dissipation is vital, use thermal compounds
  • Separate high-frequency components from the low ones

That said, the applications of PCB that apply in space-grade and military devices include the following:

  • DC-DC converters, DSP, and GPS (global positioning service)
  • Artillery and mortars
  • Switch-mode power supplies and Analog to digital converters
  • Oscillators, Transceivers, Digital filters, and modulators
  • Solar panel motor drive circuitry
  • FPGA, VCO, and GPRS (general packet radio service)
  • Onboard memory, RF modulator, and IF mixers
  • Flight control, Filters, Autopilot, Transponders, and Navigation electronics
  • ATC (air traffic control) electronics and Active antenna circuits

Consumer Electronics Application

Consumer electronics is the most common industry for PCBs. Why? Most people around depend on electronic devices. In truth, some of the design considerations of PCBs in this industry are: 

Hence, the consumer electronics thick rigid boards come in various sizes, colors, and shapes.

Also, the PCBs have two or single sides for limited functionality and reduced cost.

So, here are the various applications:

Home Appliances

  • Alarm clock
  • Coffee maker
  • Air conditioners
  • Microwave
  • Refrigerator
  • Washing machines
  • UPS
  • CCTV


  1. Radios
  2. Smartphones
  3. Tablets
  4. Smartwatches


  • Laptops
  • Screen and peripheral devices
  • Satellite navigation
  • workstations

Entertainment Systems

  • DVD player
  • Game consoles
  • TVs
  • Stereo set

Typically, there’s a high demand for PCBs that apply to the consumer electronics sector. So, the manufacturing process has to meet the required regulations and standards. That way, the PCBs will maintain uniformity and quality.


What is the most extensive circuit board in a computer?

The motherboard is the giant circuit board in a personal or desktop computer. Hence, you can connect other devices and boards to accessible communication.

What are the boards that connect to a motherboard?

If you have an existing component like a video card that requires an upgrade (in your desktop computer), it’s possible to add expansion cards. Alternatively, you can add new functionality to personal computers.

What is on a circuit board?

Some of the components you’ll find on a circuit board are:

  • Integrated circuit
  • Mounting hole or screw hole
  • Fuse
  • Jumpers
  • Inductor
  • Capacitor

What is a laptop PCB?

It refers to a printed circuit board in a laptop. And the PCB has components that help the computer work like memory slots, sockets for chips, power connectors, etc.

Are PCB and motherboard the same?

They are both similar but different. That is, the PCB is a board that features copper signal traces. Also, a motherboard usually has components added with smaller boards that plug into it.

Is the primary PCB in a PC?

Yes! The motherboard is the computer’s main circuit board. Plus, all peripheral devices and components plug into the motherboard.

Rounding Up

The PCB computer is quite similar to a standard PCB. The significant difference is that you can easily plug components and peripheral devices into the circuit board. Also, it has a higher thermal conductivity for dissipating high heat from fast computer processors.

But PCBs for consumer electronics vary widely in function, shape, and size. For instance, the PCB you use for a TV is different from the one that powers a smartwatch.

That said, what do you think about the computer PCB? Do you plan on building or getting the best one for your project? Please feel free to reach us.

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Emma Lu
Our professional engineering support saves our customers a lot of trouble and loss. >>>>>> After you place the order, our engineer will conduct technical reviews to make sure the parts can be mounted well/correctly on the boards. We will check if the component packages match well with the Gerber footprints, if the part numbers you provided match well with the descriptions, and if the polarity is clearly marked. >>>>> When your design is ready, please send your Gerber and BOM so we can quote and start!