All your computer have same color? I mean mouse, keyboards, screen...?  

My computer has a black roof cover and a black keyboards and a silver touchpad.My mouse also is black and white.But my sound box is white.

same thing here, my personal computer is all dress up black from cpu, monitor to printer, headset, speaker, webcam, modem, keyboard and mice, i like the color black it is more formal and cool..

same thing here, my personal computer is all dress up black from cpu, monitor to printer, headset, speaker, webcam, modem, keyboard and mice, i like the color black it is more formal and cool..

My computer has a black roof cover and a black keyboard and a silver touchpad.And my mouse is black with white.And i also have a white sound box.I love them.

same thing here, my personal computer is all dress up black from cpu, monitor to printer, headset, speaker, webcam, modem, keyboard and mice, i like the color black it is more formal and cool..

Yes I do have everything in the same color and that is black.
I have one Dell Vostro in which i get everything with black cabinet.

I use a laptop, and I don't use an external mouse, so it's all the same. It's a black computer with a touch pad. my husband has a white (or is it a light brown?) desktop PC with a matching mouse, and matching keyboard, even though all the parts came from different places.

Yes, mine too. My PC has a black mouse, keyboard, a black colored cabinet. Even the speakers are black. Hey, the headphone's black too!!! But Sadly, my router's white in color. Stark contrast isn't it?