![]() ![]() Well it’s all to do with the number of wires that must be connected. ![]() So why transmit one bit at a time when you can transmit 8 or 16 or even 32 bits at a time. But, you may say, the USB port is serial. So it will hold the fort for a few years yet before the USB port takes over in creating a truly integrated bus system. Nevertheless, it has survived, and now has several uses, especially with printers, scanners and external CDROMs. In its standard form, it can only send information in a single direction, and, even worse, only eight bits can be sent at a time. Well it’s because of one reason: since PC’s started, the serial port has always been a standard port and most manufacturers abide with it, whereas the parallel port was a quick fix so that the original PC could communicate with a printer. So why has the serial port become more popular than the parallel port. Please could you send me some’ I didn’t really have the heart to write back to the user and say that it was a made-up chip, so I sent an email back saying that it was not available at the present time (which was true). I have searched for this component, and cannot find any information on it. ‘Thanks for … Please could you tell me the function of the XYZ123 device. So that the chips would not be confused with real chips I labelled one of them XYZ123. In the card, I had drawn a few chips, to basically show that it had some electronics on it. ![]() One of the most amusing emails that I ever received related to an ISA card which I had drawn. Converting a DOS program to Microsoft Windows. ![]()
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