Hdmi cable for macbook air to monitor serial#
Hdmi cable for macbook air to monitor full#
Hdmi cable for macbook air to monitor series#

The use of DB-25 and DE-9 ports for communication is in decline and are replaced by USBs or other ports. The pinout diagram of DE-9 port is shown below.

Hdmi cable for macbook air to monitor serial#

Some of the applications of DE-9 port are serial interface with mouse, keyboard, modem, uninterruptible power supplies (UPS) and other external RS-232 compatible devices.

Hdmi cable for macbook air to monitor full#

A DE-9 port is also called as a COM port and allows full duplex serial communication between the computer and it’s peripheral. It is a D-sub connector with E shell and is often miscalled as DB-9. Hence, DE-9 was developed for RS-232 based serial communication while DB-25 was rarely used as a serial port and often used as a parallel printer port as a replacement of the Centronics Parallel 36 pin connector.ĭE-9 is the main port for RS-232 serial communication. They were developed as the main port for serial connections using RS-232 protocol but most of the applications did not require all the pins. DB-25ĭB-25 is a variant of D-sub connector and is the original port for RS-232 serial communication. There are two types of serial ports that are commonly found on a computer: DB-25 and DE-9. Serial PortĮven though the communication in PS/2 and USB is serial, technically, the term Serial Port is used to refer the interface that is compliant to RS-232 standard. PS/2 port is now considered a legacy port as USB port has superseded it and very few of the modern motherboards include it as a legacy port. The pin out diagram of a PS/2 female connector is shown below.Įven though the pinout of both mouse and keyboard PS/2 ports are same, computers do not recognize the devise when connected to wrong port. PS/2 connectors are color coded as purple for keyboard and green for mouse.

Hdmi cable for macbook air to monitor series#

It was introduced with IBM’s Personal Systems/2 series of computers and hence the name PS/2 connector. PS/2 connector is developed by IBM for connecting mouse and keyboard.

Surround Sound Connectors or 3.5 mm TRS Connector.

Parallel Port or Centronics 36 Pin Port.

The article gives a brief introduction to different types of ports along with their applications. Printer port is an example of parallel port.

data is transferred in or out in parallel using more than one communication line or wire. The most common type of serial port is a D-Subminiature or a D-sub connector that carry RS-232 signals.Ī parallel port, on the other hand, is an interface through which the communication between a computer and its peripheral device is in a parallel manner i.e.

They are Serial Ports and Parallel Ports.Ī serial port is an interface through which peripherals can be connected using a serial protocol which involves the transmission of data one bit at a time over a single communication line. In Computers, communication ports can be divided into two types based on the type or protocol used for communication. Generally, the female end of the connector is referred to as a port and it usually sits on the motherboard. The main function of a computer port is to act as a point of attachment, where the cable from the peripheral can be plugged in and allows data to flow from and to the device.Ī computer port is also called as a Communication Port as it is responsible for communication between the computer and its peripheral device. Some of the common peripherals are mouse, keyboard, monitor or display unit, printer, speaker, flash drive etc. A Computer Port is an interface or a point of connection between the computer and its peripheral devices.