来自MSN

Here's What A Computer's Serial Port Was For (And Where It's Still Necessary)

If you've been using computers for more than a couple of decades, you've probably used a serial port to attach peripherals like your mouse and modem. Until the USB standard rendered them obsolete in ...
Hackaday

Ancient Pocket Computer Gets A Serious Serial Upgrade

[Robert’s Retro] is one of those great YouTube channels that shows us the ins and outs of old and obscure computers. [Robert] likes going a step beyond the traditional teardown though, repairing and ...
来自MSN

How to Find Your Windows PC's Serial Number

Open Command Prompt or PowerShell and enter "wmic bios get serialnumber" to find your PC's serial number. Windows and System Information won't display your PC's serial number. If the command doesn't ...
Electronic Design

Control Camera Time Exposure Through A Computer's Serial Port

A computer’s serial port is a convenient source of low-speed dc control signals that are easy to set from software. For example, the RTS (request-to-send) line outputs about +9 V when “on” and -9 V ...