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Explain Block Diagram of Computer and Its Components

History of Computer In ancient times, mankind is unaware of nothing. They eat what they get, grasp knowledge what they saw and do whatever they like. As generation passes habits of mankind also changed. ”Necessity is the mother of Invention”, this proverb suits here.  Little by little they civilized themselves by a proper manner. Education in older days is traditional one. They learn mathematics and writing by visual materials like stone, writing in sand and counting’s are made by different way.  Later, modernized and globalized world takes us to next level. In early century people face a tough time where they have to solve complex problem without any machine. So, they founded a machine which was technically called “COMPUTER” Generations of Computer People design computer which meets their necessity. It is divided into five types such as 1. First Generation Computer( Vacuum tube) 2. Second Generation Computer(Transistor) 3. Third Generation Computer(Integrated Circuit) 4. Fourt