subject summarizing what I have learned from introductory courses in information technology. history of the plant, utility, the stage of development of the situation until today. conceptual information and data - Information is all that brings understanding to know about the world around them (things that exist objects ....) and the man himself. -Data is the form of the information shown in item storage and destination certain processor count system and the related operation count counting system: The system is a collection counting wildcards and regulations and rules to perform the valuation of numbers. - Each generation count 1 number sign finite self. Total signed order of each numeral system called radix (base or radix), denoted b of the operations related to the system counted as multiplication, division, transfer base count information storage and display information PC: including plain text files and binary text file distributed operating system: the part between the hardware and the application program includes the operating system operating system batch processing, spooling, multiprograming, time-sharing , parellel os os .real time, distributed os, embedded os today there are many high-level operating system most widely used is Microsoft's operating system computer network: Computer Network is a collection of multiple machines calculation or information processing devices are interconnected by means of transmission. kinds of computer networks are classified by function: + peer to peer + client / server categorized by scope: + LAN (local area network) + MAN (Metropolitan Area Network) + WAN (wide area nerwork) Application of the Internet: word wide web, email, file sharing, instant messaging, games, remote controls, etc -virus: Computer virus is a software program to be able to soft copy itself from object to object infect others to subvert the system. + Drawbacks: • Reduce the performance of the computer. • Making false deviation during operation of the machine count. • Stealing, alter, destroy data in the computer. • Stolen account information online. -text and twisted text: + twisted structure and rules text: Rule newline, capitalization rules, Rule dashes, Cam spaces. + to twisted text on the machine, the software must have twisted draft and the corresponding encoding, The Unicode encoding is common, VNI, TCVN3, and VIQR. + have the text spiral • Preparation based on syntax of a compiler: Latex (eg using WinEdt to compile and use to MikTeX translation) • Preparation of software-based applications under the aid approach "what you see is what you get" (WYSWYG) running on the computer or on the Web: MS-Office, OpenOffice, Google Docs, iWork (MAC) • Preparation based on specialized software for some kind of common text files: Adobe Acrobat Professional for PDF files
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