Computer Types

All the computers that are developed are not like rather they have different designs and different features and different operating system (OS . Some computers have very high capacity as well as working speed; however, some are slow. Depending upon the requirements, computers are being developed.

Analog Computers (1950 – 1960)

An analog computer is a computer which is used to process analog data. Analog computers store data in a continuous form of physical quantities and perform calculations with the help of measures. It is quite different from the digital computer, which makes use of symbolic numbers to represent results. Analog computers are excellent for situations which require data to be measured directly without converting into numerals or codes. Analog computers, although available and used in industrial and scientific applications like control systems and aircraft, have been largely replaced by digital computers due to the wide range of complexities involved.

Feature of analog computer 

• Mechanical parts such as gears and levers
• Continuously changing mechanisms
• Hydraulic components such as pipes and valves
• Electrical components such as resistors and capacitors

Example: Analog computer like Bike meter, Stabilizer meter, Scooter meter etc.

Digital Computers (1940 – Present)

An Digital computer, any of a class of devices capable of solving problems by processing information in discrete form. It operates on data, including magnitudes, letters, and symbols, that are expressed in binary code—i.e., using only the two digits 0 and 1. By counting, comparing, and manipulating these digits or their combinations according to a set of instructions held in its memory

• Digital computer can perform such tasks as to control industrial processes and regulate the operations of machines
• Digital compute analyze and organize vast amounts of business data and simulate the behaviour of dynamic systems

Feature Of Digital Computer 

• Digital computer capable of solving problems
• It is operates on data, including magnitudes, letters

Main Components Of Digital Computers

• Motherboard: Circuit board connecting all components
• Processor: (CPU) Central Processing Unit
• Video Card: (GPU) Graphics Processing Unit
• Memory: (RAM) Random Access Memory
• Storage: (SSD) Solid-State Drive or (HDD) Hard Disk Drive
• Power Supply Unit: Takes in power to use for computer
• Input/Output Devices: Keyboard, mouse, screen, speakers

Hybrid Computers (1960 – 1980)

Hybrid computers combine aspects of both digital and analog computers. Essentially, you get the high speeds and complexity of analog computers combined with the accuracy of digital computers. Also, there are often digital components of hybrid computers that act as controllers

Quantum computers (1990 – Present)

Quantum computers are a type of computer that utilizes concepts from quantum physics such as superposition. The concept of superposition stems from the fact that, unlike digital computers that rely on bits, quantum computers use qubits or quantum bits. Because of the quantum state of the bits, quantum computers are able to perform at unprecedented speeds and are expected to soon attain quantum supremacy, leaving digital computers in the dust

Mainframe Computers (1960 – 1980)

Mainframe computers are also known simply as ‘mainframes’ or even as a ‘big iron.’ They were referred to as such because they were extremely large and powerful computer. The main function of mainframes is processing extremely large amounts of data very quickly. Although popularity has dwindled in recent times, they’re still very useful today, especially in enterprise applications.

Server Computers (1990 – Present)