Automated Forex Trading:If you use a 100% mechanical system you can literally put your computer doing all the work for you. An automated Forex system searches for trades, and places trades on your broker. So, if you feel comfortable with this kind of system, you just need to leave your computer turned on 24 hours a day, and he’ll be trading for you.If you intend to use a 100% mechanical trading system to trade for you, you can develop one in a platform like MT4.MT4 is a great platform and allows you to build virtually any kind of trading system.