So I'm trying to detect through Visual Basic 6.0 when a voltage change occurs on one of the pins of the serial/parallel port. The whole thing is pretty simple; no data transfer/handshaking/etc needs ...

This application note presents the process of converting a serial output into parallel output using common serial-to-parallel register integrated circuits. The document also discussed the CS556x/7x/8x ...

A post by Vladan Seget got me thinking about using virtual machines with various peripheral devices. Systems that require serial, parallel or USB connectivity are in many cases not virtualization ...

Early microcomputers typically consisted of a half dozen (or more) circuit boards--plugged into a backplane--that implemented the central processor unit (CPU), memory, disk controllers and ...

I'm not seeing a lot of these around, and the ones that I did see on Newegg had some pretty poor reviews. I'd rather not buy a PCI expansion card that'll end up being outdated fairly ...

Device drivers are the programs that enable computers to communicate with installed hardware such as scanners. When a computer does not recognize an otherwise functioning scanner that is connected to ...

You all know that there are a number of serial ports in your personal computer. The serial ports act as interface which allows transfer of information between the computers. The first serial port is ...