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What is a computer?

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3D-ComputerAn introduction in computing using Windows: computers and peripherals, operating systems and controls, the desktop, file systems, concepts and settings, networks and the Internet, email, chat rooms, IM.

A computer is a machine that inputs (takes in) facts and information (known as data), and then processes (does something to or with) it. Afterwards it outputs, or displays, the results for you to see. Data is all kinds of information, including, pictures, letters, numbers, and sounds. There are two main parts of computers, hardware and software. Hardware is all of the parts of the computer you can see and touch. Software is the instructions that a computer uses to do what you ask it to. Pieces of software are often called programs.

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The price of  digital and printed books is susceptible to small variations due to the exchange rate fluctuation.
e-Books (PDF, EPUB, MOBI for Kindle) ordered on this online bookstore are delivered by email.
Printed books ordered on this online bookstore are delivered exclusively in Romania.
Orders not paid within 7 days are automatically canceled.
The shipping costs for printed books will be paid directly to the courier upon receipt of the package.

Le prix des livres, numériques et imprimés, est susceptible de varier légèrement en raison de la fluctuation du taux de change.
Les livres numériques (PDF, EPUB, MOBI pour Kindle) commandés sur cette librairie en ligne sont livrés par email.
Les livres imprimés commandés sur cette librairie en ligne sont livrés exclusivement en Roumanie.
Les commandes non payées dans 7 jours sont automatiquement annulées.
Les frais de livraison pour les livres imprimés seront payés directement au transporteur dès réception du paquet.

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