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Computers in Principle and Practice Servers and Operating Systems.

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Presentation on theme: "Computers in Principle and Practice Servers and Operating Systems."— Presentation transcript:

1 Computers in Principle and Practice Servers and Operating Systems

2 What is a computer?

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6 Operating System Low level software that manages hardware resources and allows the user to execute applications

7 Operating Systems

8 Unix Fast, efficient, secure Client-server architecture Text commands

9 The Internet

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11 www.google.com = 173.194.34.104

12 The Internet http://animals.howstuffworks.com/pets/dog-pictures.htm = File: dog-pictures.htm In folder: pets On server: animals.howstuffworks.com

13 Clients and Servers

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16 First Web Pages

17 Login to the Server i5.nyu.edu Netid Nyu home password ssh netid@i5.nyu.edu

18 Create a folder mkdir public_html

19 Change permissions chmod a+rx public_html chmod u+rwx public_html

20 Create a web page cd public_html cp /usr/local/share/index.html. chmod u+rwx index.html chmod a+r index.html

21 FTP Download Upload


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