After a youth spent playing with Amigas and getting into all sorts of trouble on the school computer network, I’ve always had a soft spot in my heart for hardware from the 80s and 90s. This extends ...

The 74AHC164 and 74AHCT164 are 8-bit serial-in/parallel-out shift registers and are classified as high speed silicon-gate CMOS devices. These devices are pin compatible with Low-power Schottky TTL ...

After the new millennium, the channels between the computer and its peripheral devices have switched from parallel to serial data transfer. Although it would seem that a parallel cable with multiple ...

This is just a general question. I know, obviously, that there are RS-232 "serial ports" and IEEE 1284/Centronix ports "parallel ports," and that these are "digital" connections. Then you have things ...

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 ...