山东省高中信息技术学业水平考试复习资料.doc

山东省高中信息技术学业水平考试复****资料
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities用心 爱心 专心
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
信息技术复****资料
第一章
1．什么是信息（Information）？简单地说，信息就是指对人们有用的数据、消息。
2．信息技术（Information technology，简称IT）是以微电子和光电技术为基础，以计算机和通信技术为支撑，以信息处理技术为主题的技术系统的总称，是一门综合性的技术。电子计算机和通信技术的紧密结合，标志着数字化信息时代的到来。
3．信息质量的标准——准确性、时效性、完整性、简明性；（板书或投影，可举些反面例子）
4．信息传输流程框图：
发出
接收
传输
传输
信源
信息获取
信息加工
信息转换
信宿
信息反馈
5．信息技术的主要应用：1. 现代战争 2. 信息产业（即IT产业）3. 电子商务(Electronic Commerce) 4. 办公自动化（Office Automation，简称OA）5. 数字移动电话6.
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities用心 爱心 专心
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
整”即可。：
2 25
2 12 …… 1 × 2
2 6 …… 0 ①.50
2 3 …… 0