We hope you didn’t toss it. Your motherboard’s serial number is your custom PC’s serial number. Is the serial number the same as the Windows product key? No. The serial number is a unique ...

If you're unsure how old your hard drive is, check the manufacturer’s label, the drive's S.M.A.R.T. data, or the drive's ...

This has always meant needing a PC loaded with your favorite serial terminal program close at hand. Most of the time this is not an issue, because the PC is used to compile the code and program ...

DB (D-Sub) Connectors and COM Ports A serial port on a PC is a male 9-pin connector (DE-9 D-sub). Early PCs had two 9-pin connectors or one 9-pin and one 25-pin (DB-25). On a PC, serial ports are ...

Trying to use an Excel Date and Time function, but Excel returns a serial number instead of date; this is because Excel stores dates and times in serial numbers in the backend; for instance ...