Overview of serial port in a computer

[Rubeen]

How to define a serial connector of the computer. I need some information on the same. I am a newbie in computer hard ware where I am not able to calculate the working of serial connector. I am not aware of the same. Like the one thing confuses me is the flow control of the same hardware. How to determine that.

[Killen]

The exterior connector for a serial port can be moreover 9 pins or 25 pins. Formerly, the primary use of a serial port was to attach a modem to your computer. The pin assignments reproduce that. Let's take a quicker look at what happens at each pin when a modem is attached. An significant aspect of serial communications is the conception of flow control. This is the capability of one device to tell another device to stop sending data for a while. The commands Request to Send (RTS), Clear To Send (CTS), Data Terminal Ready (DTR) and Data Set Ready (DSR) are used to enable flow control.

[T.J.]

Let's come across at an example of how flow control works, you have a modem that communicates at 56 Kbps. The serial attachment between your computer and your modem broadcasts at 115 Kbps, which is over twice as fast. This means that the modem is getting additional and supplementary data coming from the computer than it can broadcast over the phone line. Even if the modem has a 128K buffer to store data in, it will still rapidly run out of buffer space and be incapable to function correctly with all that data streaming in.

[Rawko]

With flow it manage, the modem can discontinue the flow of data from the computer before it overruns the modem's buffer. The computer is continually sending a signal on the demand to Send pin, and checking for a signal on the Clear to Send pin. If there is no Clear to Send answer, the computer discontinues sending data, coming up for the Clear to Send before it resumes. This permits the modem to keep the flow of data running efficiently.

[deoWo]

No stuff what you do with your computer, storage is an significant part of your system. Generally, these devices attach to the computer through an Integrated Drive Electronics (IDE) interface. Fundamentally, an IDE interface is a standard way for a storage device which is attach to a computer. In fact, additional personal computers have one or more of the following storage devices, the floppy drive, Hard drive and CD-ROM drive.

[RoninBlade]

IDE is essentially not the true technological name for the interface standard. The innovative name, At attachment (ATA), indicated that the interface was originally developed for the IBM AT computer. In this article, you will learn about the development of IDE/ATA, what the pinouts are and accurately what slave and master mean in IDE.