Systech Corporation NDS-6008 8 DB9 RS232-422-485 Serial Ports, 4-10-100Base-T Ports - 3 Port Switch - IP Router

in this video from IT free training I will look at serial ports serial ports have been around since the first personal computers but are largely obsolete nowadays if you are fixing or working with some old equipment you may still come across them a serial interface is an interface that transfers data one bit at a time in the early days of computing pretty much every computer came with one or two serial ports generally one small and one large one there are many devices in a computer that use serial communication a good example of this is the universal serial bus or USB there is however only one type of connection that is referred to as a serial port serial ports like the one shown use what is referred to as the rs-232 standard this standard defines how data is sent over the port for this reason you may hear a serial connection referred to as an rs-232 connection they are also commonly re