thumb|right|Information and communication technology spending in 2005
'''Information technology''' ('''IT'''), as defined by the convert, store, protect, process, transmit, and securely retrieve information. 

Today,  the term ''information technology'' has ballooned to encompass many aspects of networking, engineering computer hardware, database and management and administration of entire systems. When computer and communications technologies are combined, the result is information technology, or "infotech". Information Technology (IT) is a general term that describes any technology that helps to produce, manipulate, store, communicate, and/or disseminate information. Presumably, when speaking of Information Technology (IT) as a whole, it is noted that the use of computers and information are  associated.

==Professional organizations==
*Italian association of information & communication technology companies and an affiliate of Confindustria.
*The Association for Computing Machinery (ACM) was founded in 1947 as the world's first scientific and educational computing society.&nbsp;[http://www.acm.org/]
*The Australian Computer Society (ACS) is an association for information & communications technology (ICT) professionals in Australia.
*The Australian Information Industry Association is the national organisation representing ICT companies in Australia.&nbsp;[http://www.aiia.com.au]
*The British Computer Society (BCS) is the largest UK-based professional body representing those working in IT.
*The Canadian Information Processing Society (CIPS) is the largest professional body for computing in Canada.
*The Computer Manufacturers, Distributors, and Dealers Association of the Philippines ([http://www.comddap.org COMDDAP]) is an association of leading information technology businesses in the Philippines.
*The Computer Society of India (CSI) is the national body representing  computer professionals in India.
*The Council of European Professional Informatics Societies (CEPIS) is a non-profit organisation that promotes high standards among informatics professionals across Europe.&nbsp;[http://www.cepis.org]
*The Information Technology Association of America (ITAA) is an industry trade group for most of the world's major ICT companies.
*The National Association of Software and Services Companies (NASSCOM) is an association of Indian IT companies.
*The Philippine Software Industry Association (PSIA) is an association of Philippine IT companies.
*The Union of Information Technology Enterprises (UITE) of Armenia is Armenia's first and largest IT association.&nbsp;[http://www.uite.org/]
*The Professional Computer Association (PCA), Lebanon, is an association for information & communications technology (ICT) professionals.[http://www.pca.org.lb/]

==See also==

* List of basic information technology topics''
* Information Systems
*Information communication technology
*Informative Modelling
* Information technology governance
* Information technology management
*KM System
*Legal case management
*Technical support

==References==

{{noteTA
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|2=zh-hans:信息和通信技术; zh-hant:資訊及通訊科技;
}}

'''信息技术'''（英文：，简称），是主要用于管理和处理信息所采用的各种技术的总称。它主要是应用计算机科学和通信技术来设计、开发、安装和实施信息系统及应用软件。它也常被称为'''信息和通信技术'''（, ）。

信息技术的研究包括科学，技术，工程以及管理等学科，这些学科在信息的管理，传递和处理中的应用，相关的软件和设备及其相互作用。

信息技术的应用包括计算机硬件和软件，网络和通讯技术，应用软件开发工具等。计算机和互联网的普及以来，人们日益普遍的使用计算机来生产、处理、交换和传播各种形式的信息（如书籍、商业文件、报刊、唱片、电影、电视节目、语音、图形、影像等）。

在企业，学校和其它组织中，信息技术体系结构是一个为达成战略目标而采用和发展信息技术的综合结构。它包括管理和技术的成分。其管理成分包括使命、职能与信息需求、系统配置、和信息流程；技术成分包括用于实现管理体系结构的信息技术标准、规则等。由于计算机是信息管理的中心，计算机部门通常被称为「信息技术部门」。有些公司称这个部门为「信息服务」（IS）或「管理信息服务」（MIS）。另一些企业选择外包信息技术部门，以获得更好的效益。