= What I use == Laptop Asus X555L, 6G RAM, Intel Core i5 5200u. The battery is dead, it doesn't work without being charged. Touchpad is a disaster - its surface is very weared. But I like this laptop - it still serves me well. I wanted to buy a new one, but all new laptops have high price, plus for me it's like betrayal of an old friend. == Trackball Logitech Ergo m575. This is the gift from my wife, because she knew that I didn't like to use touchpad. == Keyboard Chickony KU-0420, slim. I bought it in 2009, and it still works perfectly. The only thing that I would like is bluetooth connection.