| The author had a problem: the neighbours had exactly the same type of doorbell as he did (actually a 50 Hz buzzer), so it wasn’t always clea...
A. René Bosch (3)
| These days it is quite common that a hand-held computer (PDA) is used in a car as a navigation system. The author uses, for example, a Dell...
| Sometimes you have to do it the hard way, even if doing it the easy way is an option. That is the case here. The intention is to add a secon...