“History of Computer and Their Different Generation.”

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“History of Computer”

The modern computer that we know today is a relatively recent development, which began in the 19th century.

One of the earliest computing devices was the Analytical Engine, which was designed by British mathematician Charles Babbage in the mid-19th century. The machine was never completed, but it laid the foundation for modern computing with its use of punched cards and the concept of a stored program.

In the early 20th century, several important developments occurred that paved the way for the modern computer. The first electronic computer was developed in the 1930s by John Atanasoff and Clifford Berry, and it used vacuum tubes to perform calculations. This was followed by the development of the first programmable computer, the Harvard Mark I, in 1944.

The 1950s and 1960s saw the development of the first commercial computers, which were used primarily for scientific and military purposes. These early computers were large and expensive, and they were primarily used by government agencies and large corporations.

In the 1970s, the development of the microprocessor led to the creation of the first personal computers. These early computers were small and affordable, and they paved the way for the widespread adoption of computers in homes and businesses.

The 1980s saw the introduction of graphical user interfaces, which made computers much easier to use for non-technical users. This was followed by the development of the World Wide Web in the 1990s, which revolutionized the way we access and share information.

Today, computers are an essential part of our daily lives, and they are used in everything from communication to entertainment to scientific research. The development of computers has had a profound impact on society, and it has changed the way we work, learn, and interact with each other.

Generation of Computer.

The history of computers can be divided into four generations, each characterized by different technological advancements. Here is a brief description of each generation:

1. First Generation (1940s-1950s): The first computers were built using vacuum tube technology. They were large, expensive, and unreliable, and they were primarily used for scientific and military purposes. Examples of first-generation computers include the ENIAC, the UNIVAC, and the IBM 701.

2. Second Generation (1950s-1960s): The development of the transistor in the late 1940s led to the creation of the second generation of computers. Transistors were smaller, more reliable, and more efficient than vacuum tubes, which allowed computers to become smaller, faster, and more affordable. Examples of second-generation computers include the IBM 1401 and the UNIVAC 1108.

3. Third Generation (1960s-1970s): The development of integrated circuits in the 1960s led to the creation of the third generation of computers. Integrated circuits allowed multiple transistors to be packed onto a single chip, which made computers even smaller and faster. Third-generation computers were also the first to use operating systems and high-level programming languages. Examples of third-generation computers include the IBM System/360 and the DEC PDP-8.

4. Fourth Generation (1970s-present): The fourth generation of computers is characterized by the use of microprocessors, which are complete computers on a single chip. Microprocessors allowed computers to become even smaller, more affordable, and more powerful. Fourth-generation computers also introduced graphical user interfaces, networking, and multimedia capabilities. Examples of fourth-generation computers include personal computers, smartphones, and tablets.

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