Scanning Images

Sometimes you may need to scan in photographs, books or magazines. Scanning is the easy part but making sure your settings are right is the important part. Scan at 300dpi to the size you need to print A4 scanner but you need A3 print - no problem scan at 600dpi Always scan as a TIFF file format as this will give you a non compressed source to work from.

Caches and Content Delivery

Getting content from server to client can be more complicated than we have discussed so far. This lecture discusses how caching and content delivery networks help to make the Web work.