Features of Super computer:

• They make use of AI (Artificial intelligence)

• They are the fastest and strongest;

• They are very costly.

• They are enormous in size.

• They are employed by companies that manufacture goods.

• They process information at a rapid rate.

Classification based on Types (capacity)

According to fundamental operating principles, there are three different kinds of computers. They are as follows:

• Digital

• Analog and 

• Hybrid Computer

Digital Computer: The digital computer is outlined to execute calculations and logical operations at a high pace. Such computers are proficient in solving problems in discrete formats. It acquires the raw data as input is in the form of digits/binary numbers (i.e 0 and 1) and processes it with programs stored in its memory to produce the output.

It can implement arithmetic operations such as addition, occurrence, subtraction, multiplication and division, and all sorts of logical/mathematical operations as well. All modern computers like laptops, desktops including smartphones, calculators, tablets, digital watches, accounting machines, workstations, digital clocks etc that we use at home or office are digital computers.

Analog Computer: Analog computers are outlined to process analog data. Analog data is continuous data that varies continuously and cannot have discrete values. Analog computers are utilized primarily to measure physical units like the voltage, electric current, pressure, temperature and convert them into digits. Such computers are mostly used for scientific, technology, research, engineering, and industrial applications.

Speedometer, mercury thermometer, thermometer, operational amplifiers, electric integrators, etc. are examples of analog computers.

Hybrid Computer: Hybrid computers as the name signify exhibit features of both Analog and Digital computers. It is fast like an analog computer and has memory and accuracy like those of digital computers. It can process both continuous and discrete data. It takes analog signals and transforms them into digital form before processing them.

These types of computers are extensively used in specialized applications where both analog and digital data are processed. For example, a processor is applied in petrol pumps that converts fuel flow measurements into quantity and price. Furthermore, they are used in aeroplanes, hospitals, and scientific applications.

Classification by purpose:

Computers are classified by purpose into;

• General and

• Special purpose computer

General purpose computers: are designed to perform various everyday tasks such as;

• Document preparation

• Financial analysis

• Printing documents

• Basic Input/Output functions

• Creating databases

• Data Saving on a smaller scale

• Calculations with accuracy and consistency.

• General performing activities

The size, storage capacity, and cost of such computers are essentially less. The capacity of these computers is limited in completing specialized tasks. These may include basic calculators, laptops, desktop computers, mobile phones, etc., which can help individuals to meet their basic essential functions.

Special Purpose: When a computer is outlined specifically to perform a certain function, such type of computer is identified as a Special Purpose computer. The size, storage capacity, and cost of such computers principally depend on the nature and size of the work. The function of these computers is consistent with any particular task, that is these computers are designed to perform a particular or specialized task such as thermometers to test temperature, devices used for examining climate change, generators to manage electricity and large computers for IT Companies.

Examples of special-purpose computers

• Automatic teller machines (ATM)

• Traffic-control computers

• Surveillance equipment

• Weather-forecasting simulators

• Washing machines

• Military planes controlling computers

• Defence-oriented applications

• Oil-exploration systems

Classification by generation

The Generation of Computer tells about the evolution of technology to distinguish the computers in term of varying hardware and software.

The evolution of computers started around the 16th century. The evolution of the computer is the process of which transformation of the oldest vacuum tube-based system to the current model system of today’s computers.  Long ago, the early primitive people were trailblazers in the use of counting tools, making use of objects like sticks, stones, and bones for their counting needs.

In computers, we use the term “generation” to show the evolution of technology. Earlier, the generation term was used to distinguish the computers in terms of varying hardware but now it all together includes the hardware and software which makes up a computer system. After centuries of evolution that began in the 16th century, the contemporary computer has taken its current form. There are 5 Generations of computers and they are as follows;