in this document, you will learn basics concepts of computers for more information visit my website BT Tech

1. What is Computer
A computer is a machine that can store and process information. Most computers rely
on a binary system, which uses two variables, 0 and 1, to complete tasks such as storing
data, calculating algorithms, and displaying information. Computers come in many
different shapes and sizes, from handheld smartphones to supercomputers weighing
more than 300 tons.
Who invented the Computer
Many people throughout history are credited with developing early prototypes that led
to the modern computer. During World War II, physicist John Mauchly, engineer J.
Presper Eckert, Jr., and their colleagues at the University of Pennsylvania designed the
first programmable general-purpose electronic digital computer, the Electronic
Numerical Integrator and Computer (ENIAC).
What is the most powerful computer in the world
As of November 2021 the most powerful computer in the world is the Japanese supercomputer
Fugaku, developed by RIKEN and Fujitsu. It has been used to model COVID-19 simulations
.
What can computers do?
The most powerful computers can perform extremely complex tasks, such as simulating nuclear
weapon experiments and predicting the development of climate change. The development of
quantum computers, machines that can handle a large number of calculations through quantum
parallelism (derived from superposition), would be able to do even more-complex tasks
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