| Keypads are needed for a variety of applications and DIY projects. Particularly for selecting the measurement range of an instrument or sett...
H. Kraus (3)
| Unplugging or re-connecting equipment to the serial COM or PS2 connector always gives problems if the PC is running. Even if you only need t...
| There are many different ways to protect a computer against virus attacks. The electronic removable disk presented here is an especially r...