How was the first computer made?

1. Analog Computers (Early 20th Century): The history of computers begins with analog devices. These devices used gears, belts, and mechanical components to solve mathematical problems. Analog computers, such as those used for differential analysis, simulated the behavior of physical models.
2. Electromechanical Computers (1930s - 1940s): During this period, electromechanical computers emerged. These computers were designed to process data using electromagnetic relays and other electromechanical components. The Z3, developed by German engineer Konrad Zuse in 1941, is an example of an early electromechanical computer.
3. Vacuum Tube Computers (1940s - 1950s): With the use of electron tubes, computers became faster and more reliable. The ENIAC (Electronic Numerical Integrator and Computer), developed in the United States in 1946, is often considered the first general-purpose electronic digital computer.
4. Transistorized Computers (1950s - 1960s): Transistors replaced vacuum tubes, allowing for smaller, more reliable, and energy-efficient computers. Computers like the IBM 700 series were among the first examples of commercial computers using transistors.
5. Integrated Circuit Computers (1960s - Present): With the development of integrated circuit technology, computers became smaller, more powerful, and more cost-effective. Microprocessors emerged during this period, leading to the advent of personal computers. The Intel 4004, released in 1971, was the first commercial microprocessor.

So when was it developed and by whom?

1. Charles Babbage (1791-1871): The British mathematician and inventor Charles Babbage worked on the "Difference Engine" and the "Analytical Engine" in the mid-19th century. The Analytical Engine is often considered the first design for a programmable computer, but Babbage never completed the construction of these machines.
2. Konrad Zuse (1910-1995): German engineer Konrad Zuse developed the world's first programmable computer, the Z3, in the 1930s and 1940s. The Z3 is considered an electromechanical computer.
3. ENIAC (1946): American engineers John Presper Eckert and John Mauchly developed ENIAC (Electronic Numerical Integrator and Computer) at the University of Pennsylvania. ENIAC is recognized as the world's first general-purpose electronic digital computer.
4. Alan Turing (1912-1954): British mathematician and computer science pioneer Alan Turing introduced the concept of the Turing machine, laying the foundation for theoretical computer science. Turing also designed a device known as the "Turing Machine," which was used to break the German encryption system during World War II.
5. John von Neumann (1903-1957): Hungarian mathematician and physicist John von Neumann developed the "Von Neumann Architecture," a fundamental concept in modern computer architecture. This architecture allows programs and data to be stored in the same memory.