Competition Exam

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  History Of Computer 1. Early Beginnings: Pre-Computer Era Abacus (c. 2400 BCE) : The first tool used for counting and performing arithmetic. It’s a simple device made of rods or beads and remains one of the earliest computing tools. Antikythera Mechanism (c. 100 BCE) : An ancient Greek analog computer used to predict astronomical positions and eclipses. It represents one of the earliest examples of complex mechanical computation. 2. The Mechanical Era Charles Babbage's Analytical Engine (1837) : Often called the "father of the computer," Babbage designed the first automatic mechanical computer. His Analytical Engine was designed to be programmable and could perform any calculation, but it was never completed in his lifetime. The machine included elements of modern computers, such as an arithmetic logic unit (ALU), control flow via conditional branching, and memory. Ada Lovelace (1843) : Ada Lovelace is credited with writing the first algorithm intended for the Analytica...

                                    Definition : A computer is an electronic device that processes data and performs tasks according to a set of instructions (programs). It can store, retrieve, and manipulate data to perform operations such as calculations, text processing, multimedia handling, and more. Computers are an integral part of modern life, used in various fields, from entertainment and education to science and business. Types of Computers Computers can be categorized based on size, power, functionality, and purpose. Here are the main types: Supercomputers Definition: These are the most powerful computers, capable of performing trillions of calculations per second. Uses: Used for complex tasks like weather forecasting, scientific simulations, and research in fields such as physics, chemistry, and genetics. Example: IBM Blue Gene, Cray XT5 Mainframe Computers Definition: Large, high-p...