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Computer Basics -2 || Types of Computers and Usage.

The type of Computers and Usage is related to each other. We can say that companies are manufacturing computers based on their Usage and target Users.

Type of Computers and Usage

Types of Computers

We can categorized the computers based on the users and their usage. Few of the examples have been given below:

Desktop

Also, called PC (Personal Computers). Hence this can be used by a single user at one time. These systems are not portable. Target users are:

  • At home
  • Training Centers
  • Banks, Offices, Call Centers

Now, the size of these computers is getting compact. Nowadays, CPUs are integrated into the Display. Monitors have been transformed into the LCD screen. In addition, wireless Keyboard and Mouse are available. All these things make it easy to handle and easy to use.

All in one Computers

Laptops

Another Compact version of the PCs is Laptops. These are portable and can be carried while traveling. These are mainly used by:

  • Business leaders
  • salespersons

These devices run using rechargeable batteries. Keyboards are in-built in these devices. Mouse gets interchanged with the touch-pad.

Mobile Phones and Tablets

The smallest version of the computers is known as tablets and mobiles. Also, known as Smart Phones. These devices are integrated with the basic functionality of a standard Phones. In these devices, small apps are present which are used by individuals. These devices haven’t any keyboard or mouse instead of such devices have a Touch display.

These devices are multipurpose and easy to carry. Nowadays every person in the world have these smartphones. It can be fit in your palm or pocket. There is no additional qualification needed to operate these devices, unlike Desktop and Laptops.

Servers

All the above devices and machines are used by the individual. But in a private company or a small organization, we can’t use these machines alone. Servers are used in an organization due to the below reasons:

  • Establish a connection between all the PCs.
  • Store all the data using central storage.
  • Provides security and privacy to the information.
  • Sharing resources across all the machines within a company.
  • Tracks all the transactions, emails and other data with high efficiency and speed.

Mainframe Computers

These computers are the mix of the multiple Servers. These computers used to connect multiple servers across different locations. These are big in size and efficient enough to process millions of records in a fraction of second.

  • Used in big organizations like Banks, Airlines, railways.
  • Faster than Servers and other computers
  • Very expensive and maintenance is required 24 hours.
  • These organizations are using separate applications and storage methods.
  • Connects various branches across the globe.
  • These have a different type of Operating Systems and Security Systems.

Super Computers

Supercomputers are the fastest computers. These are a combination of thousands of Mainframe computers. These type of computers are used to do an extensive calculation, scientific calculation and directly connected with the satellites.

  • Used in Scientific Research
  • Weather forecasting.
  • Oil and gas research

Advantages and Disadvantages of Computers

AdvantagesDisadvantages
Can do same task repetitively with same efficiency and result.Computers have no intelligence, they can do work with given instructions.
Computers do not get tired.Electricity required continuously based on the computer type.
Makes our life easy and we can do work very fast.Humans are getting bound to these technologies. They feel helpless without these devices and the internet.

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            Ashok Kumar is working in an IT Company as a QA Consultant. He has started his career as a Test Trainee in manual testing in August 2010. Then he moves towards the automation testing after 4 years. He started learning JAVA and Selenium by self to get the knowledge of automation.

       While learning these tools and working on multiple projects, he found that sometimes people get stuck in live scenarios in their project and they have to do lots of RnD to get out of it. So he decided to start blogging only for such scenarios, where anyone facing any problem in their project, can ask any question or give a solution or you can say an alternate solution to achieve the goal successfully.

Later on, he observed that some people want to learn Java but they have few questions in their mind like how to start Java, whether we should go for the online or offline course. So he started writing tutorials on Java, Jira, Selenium, Excel etc.