Hardware components of a computer system

Because of headways in Information Technology (IT), there have been different advances that are being utilized everywhere throughout the world. What’s more, with regards to innovation, a mix of equipment and programming is clear. There are a wide range of sorts of PC equipment and programming that we use in our everyday lives, be it at an individual or expert level. Step by step, fresher innovation is being put to utilize. On that note, this article underneath gives a rundown of the equipment parts of a PC framework.

The types of devices mentioned below are individual components, which play a very important role in making the operation of the system possible. This is just a brief explanation of all parts.


This is the most important type part. It is a circuit board, wherein various parts of the system are set up. All input devices work when they are connected to the motherboard. RAM, CPU, and other crucial peripherals are installed on the motherboard. You can say that this is what runs the whole system.

Random Access Memory (RAM)

The RAM is a small chip that fits on the motherboard. It does the job of storing data on a temporary basis. RAM chips are generally available from 256 MB to 6 GB or more and are upgradeable. The more the RAM, faster the functionality.

Central Processing Unit (CPU)

The CPU is a small chip installed on the motherboard that does the job of running computer programs. It is more commonly referred to as the processor. The speed of computer functioning also depends a lot on the processor’s capacity. Without the CPU, you will not be able to play games, browse the web, or run any other applications.

Hard Drive

The hard drive is where all the program files are stored for retrieval or further operation. There are many storage capacities of hard drives which normally range from 80 GB to 1 TB or more. External hard drives are also available nowadays with a storage capacity of around 8 TB.

Power Supply Unit

As the name suggests, this device is responsible for providing the system with power to function. It is an electrical box fitted inside at the back of the cabinet, which connects to and powers the motherboard, disk drives, and other similar devices. It also has a fan for cooling purpose in case of overheating.

Keyboard and Mouse

The keyboard contains a series of keys that contain all the alphabets, numbers, and special characters. It is used to type text and numerals on the console. In desktop computers, it is a separate device. In laptops, it is inbuilt. It is a very important device, as it used for typing, software controlling, and gaming. The mouse is a device that is used for moving a pointer on the console. It contains two or three buttons for conveniently accessing any file, folder, or software.

Pen Drives

The floppy drive used to be an important device that would accept the floppy for data processing. Today, no one uses them. Instead, there are pen drives that are small but extremely useful peripherals. These are the ones, which have substantially reduced the use of data CDs to transfer files and media. DVD drives are parts, which can be used for viewing data from DVDs.


The monitor is another important part. It is an electronic display that helps us to view the various software and their functionalities on screen. It comes in the conventional CRT (Cathode Ray Tube), LCD (Liquid Crystal Display), and Plasma types. The CRT was invented way long ago. Nowadays, the LCD and Plasma are more in demand because of their efficiency and clarity.

Printer and Scanner

The printer and scanner are both mostly used in offices. Nowadays, both these two devices come in a single device for better space and energy consumption. The printer is used to take print-outs of essential documents and images, while the scanner is used to scan documents and view them on screen with the help of image software. In other words, a printer is used to convert soft copies to hard copies, while a scanner is used to convert hard copies to soft copies.

These are just a few of the different types of hardware devices used in information technology. There are many others, such as audio and video graphic cards, router, modem, PCI cards, cabinet, etc. The types and specifications of these devices cannot be certain, as many useful advanced technologies are being introduced in them lately.

Tips to Upgrade Graphics Card

The design card is an absolute necessity for PC amusements. As fast progression is found in PC and related advances, overhauling PC equipment is crucial to increase greatest advantage from the most recent innovation.

The graphics card is also known as video card, graphic controller, graphics accelerator or display card. It is a PCB (printed circuit board) that has three major components. These components are video memory, video BIOS, and graphics processing unit.

The graphics card should be changed if it gives a poor performance or if you want more speed options for the computer games. In the first case, you need to verify that it is the reason for the poor performance and not the computer. To do this, use the scan disk or defragmentation options and look for bad sectors on the hard disk. You can also try using other ways to speedup your computer. If they do not work, you can conclude that the lowered performance is due to the faulty working of the card. Once it has been established that the graphics card is responsible for the low speed, you should upgrade it.

Some video cards are integrated in the motherboard and some are externally connected to the computer. Older versions of motherboards used a PCI (peripheral computer Interconnect) slot in order to plug-in the video card. Newer versions of computers use the accelerated graphics port (AGP). The latest version of computers use the PCIexpress, which has a speed twice of the AGP slots.

The task of upgrading the graphics card in your desktop computer, involves finding out the type of slot in your computer motherboard. If your computer system is relatively quite old, then it is likely that it has a PCI slot. In this case, you have to upgrade related hardware in your computer system, as well. This is because, nowadays, graphic cards compatible only with PCIexpress are available. Additionally, they also render high-speed outputs.

The power supply required for a graphics card should also be considered before buying one. The power supply or wattage of the computer must be checked. The power supply ratings range from 350-500W. Also, the available computer RAM must be taken into consideration. Minimum RAM of 512 MB is required. Once all these steps are done, you can buy a new video card. Make sure that you compare all the options available in the market, and choose the one that best suits your needs.

To remove the older one and upgrade the computer hardware to a new video card, follow the steps given below:

  • If you already have a graphics card, un-install the drivers of the same. Download the drivers of the new one that you’ve purchased and store them on your computer system.
  • Remove the overclocks, usually set to increase the performance of your computer by increasing the clock rate. Set the computer system to its original specifications and turn it off.
  • The power cord should be unplugged. Open the cabinet and search for your PCIexpress slot. The PCIexpress slot has a locking clip, which is used to mount the card. Remove the older card and mount the newer one. Store the older card in an anti-static bag, as you can use it as a back-up.
  • The computer system can then be switched on, after carefully placing the graphics card in its slot. Start your computer and install the drivers which were downloaded earlier. This ends the up-gradation process and you can start playing games.

The graphics card is basically used to ensure performance, drive a digital screen, and support dual screens for playing games.

Ways to Become a Computer Hardware Engineer

A PC equipment specialist is a specialist in PC equipment and is principally worried with the improvement, testing and support of the PC equipment. On the off chance that you are keen on getting to be one, this article ought to be of assistance to you.

Computers are a necessity these days, even kids are familiar with using computers and the Internet. Majority of businesses are dependent on computers and even slight failure in the computer system can hamper the smooth functioning of the business. A computer hardware engineer is the person who develops various computer hardware, and also maintains the same, to ensure smooth functioning of the system. If he is associated with the hardware research department, he researches on the development of computer hardware. To become a one you should have a strong command over both software and hardware concepts of computer. This includes knowledge of programming languages and networking concepts. An undying zeal to research on various intricacies of computer parts is also must for success. A computer hardware engineer generally works in organizations or research units. If you have it in you to become one, we are here to provide guidance on becoming one.

Educational Requirements
Computer skills are not enough for a candidate, and he should also have a strong command over mathematics and electronics. This is because the work tasks involve working on scientific procedures. The educational requirements to become a computer hardware are not fixed and vary greatly. Top and established companies generally demand a four-year graduate degree in engineering for the post of a computer hardware engineer. A degree in computer engineering will surely be considered a plus point. The degree should be ABET (Accreditation Board for Engineering and Technology) recognized.

These days even graduates with degrees in computer science, mathematics, information technology or electronics are getting hired for entry-level positions. But if you intend to get into hardware research, a postgraduate degree in advanced computing will be required. Thus, for long term success, an engineering degree in computers serves the best bet. To hone their skills, the graduates can also take exams conducted by the Institute for Certification of Computing Professionals (ICCP).

Hone your Skills
To survive the competition you should keep your skills upgraded. For this you can take some certificate courses or join computer classes to keep yourself up-to-date with the changing trends of technology. Apart from the job skills one should also have good communication skills and should also be ready to work in a team. These engineers need to be inquisitive and zealous enough to improve their skills continuously.

Job Hunt
Once you have fulfilled the necessary educational criteria, the next step is hunt for the job. Most of engineers these days get placed through their graduation schools. But if you haven’t been placed through your college, you need to the job search yourself. Refer to job websites or mail your resume to various companies. This will definitely help you in bagging the right job. Newspapers also serve a means to job search. The significance of an effective resume cannot be ignored in the job hunt. For this you will have to design an effective resume. Enlist all your skills in the resume and make sure it is neatly formatted and written.

These were the steps to become a computer hardware engineer. These are highly skilled individuals with high knowledge of computer hardware. These engineers also need to be creative with designing, testing and troubleshooting. They are also involved with testing the working of developed hardware. Considering the hard work they do the engineers are quite well paid, and the average salary of the engineer is around $70,000 per year. This is an exiting career for those interested in computer hardware research and development. All the best!

Computer Hardware Troubleshooting

Here, in this article, we will manage the essential PC equipment investigating steps. We won’t manage the issues in the diverse equipment gadgets, but instead take up an issue, its reasonable justification, analysis, trailed by the investigating part.

There are different types of computer hardware, and of course, it would have been undoubtedly simple to deal with one hardware at a time and find out the problems associated with it. However, we know that when anything in our machine goes wrong, we are not completely aware of what exactly has happened, or rather, which part is causing the problem. So, I have decided that I will present to you the article in such a way that, we take up the problem first and then go for the troubleshooting, rather than taking a look at the hardware and the problem that it can cause.

Problem #1: Computer Does Not Start at All
If your computer does not get powered up at all, then the problem is very obvious. It has something to do with its power supply system.

Troubleshooting Procedure
This is one of the procedures that can either be very simple or can go way beyond your capability to solve. The solution may be as simple as replacing the power cable with a new one or as complicated as dealing with the SMPS of the machine. The SMPS is the Switched Mode Power Supply, the box at the upper left hand corner of your CPU, which powers up each and every component in your computer. If the problem lies with the SMPS, then solving it is not one of the DIY tasks that you would like to take up at home. It will need good technical expertise to solve the problem. Many times, the problem may have just one solution, that is, replacing the SMPS.

Problem #2: Computer Freezes or Shuts Down Suddenly
If you are facing the problem that your operating system stops responding suddenly or the computer shuts down by itself, then there may be some hardware related issue out here. Before I start off with the troubleshooting tips for this problem, I should tell you that most of the time, these are problems related to some software running in your system or because of some wrong driver installation. However, assuming that you have already checked out these problems and are sure that the problem is not related to the software, let’s start off with the hardware troubleshooting part.

Troubleshooting Procedure
Most of the time, this is a problem related to heat issues. If your processor gets heated up then there is a chance that your machine may shut down. The probable cause for this problem is that the fan in your CPU is not working properly. Here, I am assuming that you are using a desktop, as troubleshooting a laptop, would, of course require a lot of expertise. You can make out whether the fan is rotating properly, by simply observing it at the back of your CPU. There are also certain on screen system programs which can show whether your processor is over heated or not. If your fan is not rotating smoothly, then you have to get the connections to your fan checked. Another step that you can take is that you need to observe if the BIOS can properly load the fan when starting off the computer. However, if you find out that your fan is working properly, then you should take into consideration any new hardware that you had added to the system. Try removing that and check out if the machine restores back to working properly. There are chances that this hardware may be faulty. Replace it with a new one. Again, if you have not added any new hardware to your system in recent times, then the reason may be some part that is already there in your machine. Open your CPU cabinet and remove any extra RAM or extra hard disk that you are using. Check out if your computer works properly without that particular component. You can also try disconnecting your MODEM to check if the machine works properly.

Problem #3: Computer Boots Up Only from Floppy Drive
After starting up your system, if it demands you to insert a floppy disk to install the system, then probably there is some problem with the hard drive of the system.

Troubleshooting Procedure
Before going into the troubleshooting part and considering the hard disk to be corrupt, figure out in the BIOS settings, if your hard disk has been given the first priority for booting up. If it has not been given the first priority, then change the priority level and put your hard disk at the first priority level. If this does not help, then probably your hard disk is corrupt. In that case, if you have a recovery or backup system in your computer, then use it for recovering the data and the operating system. The other possible solution is that you need to reformat your hard disk.

The tips provided in this article are for the most common computer hardware problems that you may face. To have a deeper understanding on how to go ahead with the repair of even the most complicated problems, you need to get into the details of the working of that particular hardware device.