Computer sites are web-sites - like the one you used to post this question.
Free animal wallpaper can be downloaded as a screensaver to a computer desktop from a couple of sites on the web. Those sites include BHM Pics and HD Wallpapers.
There does not appear to be a site named the Computer Investigation website however there are a number of sites which offer computer forensics, data recovery and help with a number of computer problems.
Whilst there is no such thing as a typical computer support specialist, there are a number of sites that publish average earnings for this category of job. A review of several of these sites as at June 2013 shows that the average salary is around $45,000.
By using a video converter after downloading. These can be obtained from a number of sites such as - Tucows or Download.com.
There are a few companies that make sturdy mobile computers for use on construction sites. Some of the companies that make sturdy mobile computers are Toshiba, Motorola and Armor.
Sites
Anything they want
Many sites sell replacement computer motherboards. Most of these are specialist computer sites like Dabs, but other places like Amazon or eBay are also popular.
There are many different online sites where you can purchase multiple computer servers. One of the best-quality providing sites I have found is itcomputerservers.com
People often seek help on computer help sites for installation issues, connectivity issues and information about removing viruses. Any basic question about computer performance or hardware installation can typically be found on these types of sites.
Upload sites are websites that allow you to upload (copy) content from your computer and store it on their server.
You don't go there. School computers block some sites and you are not suppose to be on those sites. When I find students on sites that are not part of the subject/curriculum I take them off the computer.
There are online learning sites offering computer science courses. A few examples are University of Phoenix and IIT.
Social networking sites. Do you know any proxies to get on these sites while at a computer with a ban on social networking?
with your computer
Websense is a program that blocks unsafe sites on your computer.
Try "Group Freeware" and other computer sites.