Cars and Horses
/A car is a device which will take you from A to B. You turn a wheel and the machinery in it makes the car go in the desired direction. A horse is an animal which will let you sit on its back and might take you where you want to go. If you pull the reigns on a horse, and it agrees with that direction, it will go there. Sometimes, for no apparent reason, a horse will just take off. Or refuse to move.
I used to use a Toshiba M200 Tablet PC. This computer is a car. It does what I ask, when I ask. It just works. Lovely. Emboldened by this I then move on to a Toshiba M400 device. This computer is a horse. When it works, and you have the wind in your hair (metaphorically speaking) it is wonderful.
But every now and then it misbehaves. The screen goes dark and refuses to light up again. It freezes (usually in the middle of a presentation) and needs to be rebooted. Sometimes it slows down for no good reason. Some bits just don't work. At the moment it is just useful enough for me to live with the foibles. But if it locks up in the middle of a Software Engineering lecture again I may have to rethink its place in my life.....