[Bluecobra]

This is great, when I first started in trading in 2006 one of the traders actually used a Gravis gamepad to do click trading. I even remember conversations between devs debating about the latency of the human eye in order to make screen refresh decisions.

Also around the time the was a company called Trading Technologies that had a patent for click to trade on a GUI grid/order book and was suing everyone.

[lordnacho]

I heard they sued everyone who displayed the book a certain way. The best way, actually: a single column of prices, with bid quantities on one side of the prices in the bottom left and the asks on the top right.

This seemed to be why you had to organise it yourself to show it the "TT way" on any other system instead of having it out of the box.

[sitzkrieg]

this is true. they had patented DOM displays to extent other software has to pay royalties for static doms. quite stupid. the main thing was keeping price centered of all things