Ad
More Related Content
Similar to 计算机概论报告 (20)
Recently uploaded (20)
Ad
计算机概论报告
- 3. 誕生由英國工程兼電腦科學家Sir Tim Berners-Lee的概念案中提出(Tim Berners-Lee目前為World Wide Web Consortium = W3C的負責人)
- 4. 歷史1989由Tim Berners-Lee構想提出1991嶄露頭角，Tim Berners-Lee用Unix撥接登入1991-8月，Tim 叠别谤苍别谤蝉-尝别别公开发表并架设基本的伺服器滨苍蹿辞.肠别谤苍.肠丑1992年滨苍蹿辞.肠别谤苍.肠丑的计数器每叁四个月就成倍数成长1993年后成10倍数成长1995年后蓬勃发展至今
- 6. 關於WWW的附加元件About Add-on：書寫語言可分為1. Java 、 JavaScript2. C++ 、C 、C-- 、VB等以上列舉皆為DHTML動態HTML，此種HTML皆屬於物件導向的程式語言而什麼是附加元件呢？就是當你在看Youtube上面感人的、搞笑的影片，原本這些多媒體，是無法直接經由瀏覽器播放出來的，而有了這些附加元件，我們可以直接用瀏覽器觀看想看的影片，省去了”Download”這樣的一道手續Ps.1.Youtube的影片附加元件為常見的”Flash”是一種動畫製作的平台工具2.最近蔚為風潮的Tetris Battle也是一種”Flash”3.很多FB的小遊戲都是
- 9. 由於网际网路的基礎結構的缺陷，造成的堵塞問題，經常讓人很煩。結果是有人要給全球資訊網改成 World Wide 奥补颈迟传输速率：1.56办拨接上网2.128办、256办、512办、1惭3.10惭光纤↑但是以上的各种速率，并不是使用者所获得的真正速率，下载速率换算法约為(以上数字/8)传输速率
- 11. Web browsersThere’re so many web browsers available now , such asWindows Internet Explorer 9Mozilla Firefox 4Google Chrome 12Opera 11Apple Safari 5
- 12. About SecurityInternet represents an insecure channel for exchanging information leading to a high risk of intrusion or fraud, such as phishing. Different methods have been used to protect the transfer of data, including encryption.There are 6 common attacks that spread through WWW :1.Malware惡意軟件-----> short of Malicious software2.Viruses病毒-----> programs that can replicate their structures or effects by infecting other files or structures on a computer. The common use of a virus is to take over a computer to steal data.3.Trojan Horse 木馬----> destructive program that masquerades as a benign application4. Spyware間諜軟件----> type of malware that can be installed on computers, and which collects small pieces of information about users without their knowledge. 5.Worms蠕蟲--->self-replicating malware computer program, which uses a computer network to send copies of itself to other computers on the network and it may do so without any user intervention6.Botnet 殭屍網絡----> collection of infected computers or bots that have been taken over by hackers (also known as bot herders) and are used to perform malicious tasks or functions.
- 13. Preventing web attackUse one or more software listed below and keeps updating it :Anti-Virus software (e.g. avast!, AVG, Avira , NOD32 , Karspersky)Anti-Malware software (e.g. Malwarebyte’s Anti-Malware)Anti-Spyware software (e.g. Hitman Pro)Theft- protection software (e.g. USB Disk Security)Firewall (e.g. Windows Firewall , Zone Alarm Firewall , Comodo Firewall)
- 14. 結論Web provides us many valuable information throughout the world, but it still have some disadvantages such as security holes that already mentioned above. But, the future of web will lead us into advance information age, where anyone could access about information anytime , anywhere , any condition in a more, more simple ways than we do today.
- 15. Thank You…