![]() ![]() ![]() Since many cost-efficient serial over Ethernet software and hardware solutions enable COM ports to be used on machines that are not equipped with any, we can expect the RS232 protocol to be around for a while. They employ the RS232 interface which is still supported by the hardware on many modern computers. Some examples are surveillance cameras and equipment used for industrial automation implementations. Serial ports are still used in many specialized situations. Null-modem cables can be used with serial interfaces to connect two computers, but this method is rarely used anymore. Similarly, COM-connected mice are no longer widely used to input data. Most computers are equipped with internal modems, eliminating the need for external serial devices. USB interfaces have largely replaced COM ports as a faster way of performing serial data transmission. This is done by creating a virtual COM port that performs identically to a physical port contained on a machine’s motherboard. The driver is a program that enables the computer to use the USB to RS232 adapter as a replacement for a serial interface. The adapters work by installing a device driver on a Windows computer. There are many solutions available, and most are inexpensive and easy to implement. You can use a USB to serial adapter which can provide single or multiple COM ports to machines that do not have any installed serial interfaces. This does not mean that you cannot connect a serial port device to a new computer. The RS232 serial ports seen in the past are usually replaced with one or more USB interfaces. Maybe you will need a serial adaptor for the laptop. Serial ports are not standard equipment on the majority of newly manufactured desktop and laptop computers. Information is sent and received one bit at a time, which provides for a simple and reliable method of communication. Serial devices are pieces of electronic equipment that are characterized by the way they transmit data. ![]()
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