Transparent proxy. It tells websites that it is a proxy server and it will pass along your IP address anyway. Anonymous proxy. It will identify itself as a proxy, but it won't pass your IP address to the website. Distorting proxy. It passes along an incorrect IP address for you, while identifying itself as a proxy. High Anonymity proxy.
It is also called Display Settings, which refers to the number of pixels displayed across the width of your computer monitor or data projector image. The most common display settings are 800 x 600 and 1024 x 768 while the default resolution of PowerPoint is 720 x 540 (almost the same as digital video).
Suppose your camera's largest resolution is 4416x3312. Printing at 300dpi will allow an 11x14 print. If you shot at a lower resolution, say 1600x1200 you could only print a 4x5 at 300dpi. Since you are wanting to print at an A4 (8.3x11.7, 210x297mm) size you might get acceptable results printing at 200dpi.