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Education for all
The introduction of microprocessors had a huge impact on the way we use computers. Computers that once took large areas were reduced to the size of small desktops. Although these desktop computers are small and compact, they possess computing power more than that of the large size computers of the previous generation. Here, in this section, we are going to learn about the structure of a microprocessor-based personal computer system. The block diagram of a personal computer system is shown in the figure.
This block diagram also applies to any computer system, from the early mainframe computers to the modern microprocessor-based systems. The block diagram consists of three main blocks, connected to each other with the help of buses.