What is Data Communication

Ayay friends.... today we are fasting for the last time... doesn't anyone want to break fast with me??? If anyone wants it, just come directly to Indonesian Scholarship hihihi.... Come on, let's just discuss it. This time I want to share about your material which might make you a little confused if your teachers/lecturers ask... Today I will discuss Data Communication. My post based on https://id.wikipedia.org/wiki/Komunikasi_data . Check it out !!!

Data Communication

Data Communication is the process of sending and receiving data/information from two or more devices (devices, such as computers/laptops/printers/and other communication devices) connected in a network. Both local and wider, such as the internet.

Another definition of data communications is electronic data transmission via several media (coaxial cable, fiber optics, microwaves, etc.). The system that allows data transmission to occur is often referred to as a data communications network

In general, there are two types of data communication, namely:

Through Terrestrial Infrastructure

Using cable and wireless media as access. It requires high costs to build this type of infrastructure. Some services that are terrestrial include: Direct Data Connection (SDL), Frame Relay, MultiService VPN and Packet Data Communication Connection (SKDP).

Via Satellite

Using satellite as access. Usually the area covered by satellite access is wider and is able to reach locations that do not allow the construction of terrestrial infrastructure but requires a long time for the communication process to take place. Another weakness of communication via satellite is the interference caused by solar wave radiation (Sun Outage) and the most severe one occurs once every 11 years: 

What causes us to really need Common: 

1. Using this system will feel more efficient 
2. Because most computer users almost use data as a means of communication between offices, companies and other institutions. This is what makes the Data Communication system necessary.
3. Maintain data so that it reaches the desired destination.
4. Can reduce time limitations
5. Data becomes confidential. If there is data that cannot be known to other parties.

How to safeguard data in a data communications system :

1. Make sure the transmission media is not damaged
2. Make sure the IP address you want to send is correct
3. Protect cables from destructive animals
4. Place the cable in a safe place 
5. Always regularly scan for viruses. Recommendation 2x a day
6. The HDD used must not have bad sectors
7. To make it better, the HDD used is not mixed with this game, making files slow to open

Communications data principles :

1. Sender
2. Delevery Media
3. Sink / receiver