Transmit Bit Through Local Network

Transmit Bit Through Local Network

Back to the previous tutorial " reason for existence Networks ", you have seen an example where User1 opens a file that is stored ... 1/29/2016

Back to the previous tutorial "reason for existence Networks", you have seen an example where User1 opens a file that is stored on the disk drive User2. Furthermore, User1 print files to a printer connected to a computer User2, and finally, User1 save the file back to disk drive User1.

Use Server File/Print

So that the process is running, User1 and User2 must be able to transmit a series of bits stored in memory on a computer to another. A file is simply a collection of bits. So, imagine it using a word processing program on a single computer. You can open the file, read the contents, and edit and change files. Likewise, if you can send the same bit in the file to another computer over a network, then you or someone else can edit the file using the same word processing program on the computer. So, let the computer work, the network should be able to get a set of bits from one computer to another.

Controlling Bit Through Cables

To transmit a binary code from one device to another device, the devices generate electricity through the wire delivery. Electrical signal has many characteristics that can be controlled and changed by the NIC. Changing one value means a binary 1 and a binary 0 value means, allowing you to transfer data over the wire.

For example, imagine if both PC1 and PC2 have a NIC, and there is a single wire that mengoneksikan two cards. The thin wire, long pieces made of copper, and copper is able to mengonduksikan electricity very well. Now imagine if the encoding standard used by companies that cause the NIC established that binary 0 is represented by a power supply voltage of 5 volts and a binary 1 is represented by 10 volts. Encoding is a term that refers to a set of rules that define what kind of electrical signal to be made by the sender to implement the binary 0 and binary 1.

In the picture above, PC2 generate electricity in a wire. In this case, PC2 wants to send a binary value of 0101. So PC2 sends a signal of 5 volts, then 10 volts, 5 volts and 10 volts, because the encoding scheme imaginative in this example stating that the 5 volt mean 0 and 10 volts means 1. PC1, Another tip of the wire, felt the incoming electrical signals and interpret its electricity using the same set of rules to interpret the encoding as PC2 0101, to be exact.

Note that the graph shown in the figure above illustrates the different electrical voltage, or constant. Therefore, the X-axis (horizontal axis) present time, when the electric Voltage changed, the X-axis value immediately changes to the next.

utilization different and constant value, which subsequently changed rapidly to other value that allows (as shown above), is called digital transmission. To transmit a binary number, or binary digit, is very useful when the data transmission is done using digital transmissions.

The term bps (bits per second) often refers to the connection speed networking. Note when units are bits, not bytes. In fact, in particular LAN running at a much higher speed, with slow LAN transmit 10 million bits per second (Mbps, also called megabits per second).