It’s a simple but a nicely designed feature of a graphical interface used in Mac OS X, but inside Windows. If you don’t know what I’m talking about, here’s a preview;
So, to put it simply, Dock is an interactive taskbar, which allows you to put icons, shortcuts and files. They provide a nice clean interface to drop shortcuts on for easy access and organization. With each item completely customizable there is no end to what you can add and launch from the dock. People like using it because of its futuristic design style and also because you can put in it the programs you use on daily bases. Apple first applied this on for Mac in 1999, and people liked it, so all OS-es now use a similar thing
By googling you can find many Dock version, but these are the most popular Docks;
RocketDock – In-line, simple, nice design -> personal favourite :)
ObjectDock – Also In-line, but not as many options as RocketDock
Pie Dock – a dock in a circle, personally prefer in-line, but you know what they say; There’s no disputing about taste
If you’re using Rocket Dock, you’ll find out that it has many interesting and fun features, such as a gigantic library of icons for every program possible, so whatever design of the RocketDock you choose(and it has many), you’ll always find the appropriate icon-design. To add a shortcut to it, just drag and drop it, easy and simple. And also if you’re running a program, you can minimize it not just to your regular Windows taskbar, but also to your Dock. The best thing is, if you watch a movie, and you minimize it while it’s still playing, you can continue watching it minimized in the dock.