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Refurbished laptops with serial port. Valucomputers always stock a good range of serial port laptops from just £99. These laptops have a 9 pin serial port (RS232) and are used by fire alarm engineers and for engine diagnosis amongst other applications. We stock laptops with Windows XP, Windows 7 and Windows 10. If you are interested in buying in bulk please ask about our discounts. If the mouse you are using is a serial mouse and it's having issues with being detected, verify that the serial ports or COM ports are enabled and properly assigned in CMOS. Older computers with USB If the mouse connects via USB, make sure USB is enabled and if available, also ensure that the USB legacy support is enabled.
What is the serial port used for? Below is a listing of various hardware components that can be purchased and used with your serial port. Mouse - One of the most commonly used devices for serial ports, usually used with computers with no PS/2 or USB ports and specialty mice. Modem-Another commonly used device for serial ports. Used commonly.
If the computers are relatively close together and the file is fairly small, it may be quickest to send the file over a serial cable connected to each computer's serial port. In order to hook up two computers using the serial port, it is necessary to have a null modem cable.
Is the RS-232 port still being used on new computer or is it going to be deprecated?
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The description under 'role in modern personal computers' explains the current state of the interface decently.
'Many fields (for example, laboratory automation, surveying) provide a continued demand for RS-232 I/O due to sustained use of very expensive but aging equipment. It is often far cheaper to continue to use RS-232 than it is to replace the equipment. Additionally, modern industrial automation equipment, such as PLCs, VFDs, servo drives, and CNC equipment are programmable via RS-232. Some manufacturers have responded to this demand: Toshiba re-introduced the DE-9M connector on the Tecra laptop.'
The interface has been around for a long time and for the most part been replaced with USB. It has been removed by default from most new systems. Expansion cards and usb adapters will be available for some time. There are a few new laptop systems that come with serial ports in responce to the request for native serial db9 ports for legacy equipment support. These are usually found in 'business' lines of machines.
Most new PCs from manufacturers like Dell no longer include serial ports.
You can get a usb adapter or an expansion card for it though.
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Serial ports are a type of computer interface that complies with the RS-232 standard. They are 9-pin connectors that relay information, incoming or outgoing, one byte at a time. Each byte is broken up into a series of eight bits, hence the term serial port.
These ports are one of the oldest types of interface standards. Before internal modems became commonplace, external modems were connected to computers via serial ports, also known as communication or 'COM' ports. Computer mice and even keyboards also used them. Some used 25-pin connectors, but the 9-pin variety was more common. They are controlled by a special chip call a UART (Universal Asynchronous Receiver Transmitter).
Serial ports differ from 25-pin parallel ports in that the parallel ports transmit one byte at a time by using eight parallel wires that each carry one bit. With data traveling in parallel, the transfer rate was greater. A parallel port could support rates up to 100 kilobytes per second, while serial ports only supported 115 kilobits per second (kbps). Later, enhanced technology pushed serial speeds to 460 kbps.
In traditional computers, serial ports were configured as follows: