Client-server computing - the basis of much of what we will be doing
We want to be sure we grasp the relationship of clients to servers,
and have a shared vocabulary of terms.
... is the interaction between two programs when they communicate across a network. A program at one site sends a request to a program at another site and awaits a response.
Assuming we are using our laptops as a client, we might want to know how laptops work.
For example, SILS has a number of servers, for a number of purposes.
|Internet Protocol (IP) Address||Name||specific function|
|184.108.40.206||opal.ils.unc.edu||courses, students workspace|
|220.127.116.11||sils-pelican.ad.unc.edu||print server, admin tools|
Assuming we want to retrieve something from a server over the web, we might want to know how web servers work.
Wikipedia lists lots and lots of operating systems.
If you want to capture the entire screen, press the Print Screen button and an image of the screen will be saved to your clipboard.
If you want to capture the active window, press the ALT button + the Print Screen button and an image of the active window screen will be saved to your clipboard.
If you want to capture a part of the screen, and you use Windows 10, press “Windows + Shift + S”. Your screen will appear grayed out and your mouse cursor will change. Click and drag on your screen to select the part of your screen you want to capture. A screenshot of the screen region you selected will be copied to your clipboard. You can paste it in any application by selecting Edit > Paste or pressing Ctrl + V, just as you’d paste a full-screen shortcut taken with the Print Screen key.
The lecturer will use a Windows OS laptop most of the time. On occasion, the interface in Windows will not match the interface in a Mac. While we will try to have examples for all operating systems, it will be useful if, when you find that the Mac view is different, that you take a screenshot of the Mac environment and send it to the instructor. The instructor will ensure that the Mac screenshot is integrated into the class pages pertaining to the situation in which the screenshot was taken.
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