1. Computer generation and their classification Computer architecture and working principles

Personal computer an additional device. Shkni his possibility to increase in order for various devices work were out of and they Shkni his additional device that was called. Them among:
Drive (information carrier device) - information transfer, storage, distribution and transportation for a used device;
Printer - computer data on a paper print to the device; for a printer work principles according matrisa switches (conifers), ink and a sprayer, laser and 3d printer type is.
Conifers printers - wide common printer type is, the present day almost not used. The republic in them, only iron the way, in aviy and the bank cash in meet can.
Needles on the number of depending on this printer a-several types of divided: 9 conifers, 24 conifers, 48 conifers. Conifers printer speed is a page for 10 seconds from 60 seconds to time is going. Sometimes zarbli the printer also is called.
The ink in the printer image to the paper a special device through purkalayotgan ink drops from they come. The ink printer, the quality of the sprayer to the printer, close the price is also cheaper. Ink printer shovqinsiz works. This is the reason for the present day the majority of it is using. The speed of a page, to 15 seconds to 100 seconds. The ink in the printer substituting in kallak needles instead of small tube - to-soplo (cone tube) havingit through the paper and the paint color (ink) tiny droplets spray. This tattoo without substituting a device.
Laser printers print quality to the level of near quality writing provides. It work view point copy ko'chiruvchi kseroksga close, it just substituting drums computer command using elektrlanadi. Paint rounds by zarbli to the drums are close and the image formed is. The speed a page of text to 3 seconds from 15 seconds. The picture to more, the big picture to 3 minutes until time require will. The present day it listened to the 15-40 page posted which is a sprayer printer are there. Laser printers in millimeters 50 units far to the point and per second 1000 times far the characters substituting speed providing conduct qobililiyatli most high - quality clicks provides.

Used literature

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   DUET-Development of Uzbekistan English Teachers*- 2-том. CD ва DVD materiallari, Toshkent.: 2008.
   
2. 
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   Wayne Wolf. Computers as Components, Second Edition: Principles of
   

Embedded Computing System Design 2rd Edition, Morgan Kaufmann, USA, 2008

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   Systems Thinking: Managing Chaos and Complexity, Jamshid Gharajedaghi, Butterworth Heinemann, Oxford, 1999.
   
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   Michael Henderson, Geoff Romeo. Teaching and Digital Technologies
   

Cambridge University Press 2015

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   Christian Borowski, Marius Dehé, Felix Hühnlein, Ira Diethelm. Kinder auf dem Weg zur Informatik: Wie funktioniert das Internet? In Michael Weigend, Marco Thomas, Frank Otte: Informatik mit Kopf, Herz und Hand. Münster (ZfL-Verlag) 2011. Ð. 244–253.
   

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   Elke Frey, Peter Hubwieser, Ferdinand Winhard. Informatik – Ausgabe für
   

Bayern und NordrheinWestfalen: Informatik 1/Schülerbuch Klasse 6 und 7: Objekte, Strukturen, Algorithmen. Eine Einführung in die Grundlagen der Informatik. Klett 2004.