Résumé:
Over time and increasing of power Computers are getting smaller
and smaller. There is more crunching capability in today phones
compared with room sized computer developed 5 decades ago. although of these continuous improvement, many complex problems
still unsolved even with the most powerful computers. One critical
problem is computer's memory and switching unit (transistor) that
have achieved a level where they will be just an atom. This rise
the necessity of powerful possibilities of quantum computing that
have millions times faster processors than the used ones in classical computers. quantum computing still more complexed than
classical computing and based on quantum physics where classical
physics laws don't apply. This work gives a brief overview about
quantum basics, detailed analysis and comparison between classical computers and quantum computers, bene ts, disadvantages
and future prospects
