推荐回答（5个）
IT是信息技术的简称，Information Technology,指与信息相关的技术。不同的人和不同的书上对此有不同解释。但一个基本上大家都同意的观点是，IT有以下三部分组成：
-----传感技术 这是人的感觉器官的延伸与拓展，最明显的例子是条码阅读器；
-----通信技术 这是人的神经系统的延伸与拓展，承担传递信息的功能；
-----计算机技术 这是人的大脑功能延伸与拓展，承担对信息进行处理的功能。
所谓信息化是用信息技术来改造其他产业与行业，从而提高企业的效益。在这个过程中信息技术承担了一个得力工具的角色。
顺便说一句何谓IT产业，有一个大致的分类，可以供大家参考：
IT基础技术的提供 IC研发、软件编写 如INTEL、MS等
IT技术产品化 元器件、部件、组件制造 如精英、大众等
IT产品集成化 计算机及外设制造商 如联想、IBM
IT产品系统化 解决方案、信息系统 如华为、HP
IT产品流通 渠道、销售 如神州数码
IT产品服务 咨询服务和售后服务 如蓝色快车
IT产业舆论支持 IT类媒体 如CCW、CCID
IT产业第三方服务 各种需要配套的服务 如法律咨询、PR服务
IT后备人员培养 各种院校 如计算机专业
IT产业合作组织 各种协会、集会
IT指互联网行业 做It如果只技术性强的岗位那就是搞编程开发的 比如前端web开发
Java开发 .net开发 大数据等 或网络安全方面的
IT是行业，其中包含很多岗位，比如软件工程师，网络工程师，不同的岗位，职责也不同，你去招聘网站上搜索相应的岗位就知道啦！
IT不再只是信息技术，而是能为企业和行业赋能，助力他们实现智能变革的有力武器。从聪明的智能设备到强大的基础设施，再到智慧的云计算，对智能变革各要素进行全面覆盖，我们要牢牢地把握住人工智能所带来的机遇，不仅用于自身的转型，同样用于为消费者和企业以及行业提供最好的服务。
IT 是Information Technology的缩写.现在的IT行业在诸多行业中还是挺热门的.程序员,软件工程师,软件架构师,CTO...现在的大企业都已经做了信息化,可见IT基础设施对于一个企业的发展是多的重要!
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