What is computer communications networks, Computer Engineering

Assignment Help:

Q. What is Computer communications networks?

Computer communications networks are the outcome of a combination of computers and telecommunication products. An interconnected group of independent computers and peripheral devices that communicate with each other for the purpose of sharing software and hardware resources is known as a computer communications network. A local-area network (LAN) is any physical network technology that operates at high speed (usually tens ofMbits per second through several Gbits per second) over short distances (up to a few thousand meters). Examples include Ethernet and proNET-10. The stations, also known as nodes, within a LAN are physically linked with each other through twisted pairs of copper wires, coaxial cables, or fiber-optic cables. A wide- area network (WAN, also known as long-haul network) is any physical network that spans large geographic distances, usually operates at slower speeds, and has significantly higher delays than a LAN. Stations within a WAN communicate with each other through standard telephone lines, dedicated telephone lines, line-of-sight microwave systems, or fiber-optic links. Public-data network (PDN) is network service offered by a common carrier, such as Telnet, Tymnet, and Dataphone Digital Services of AT&T. ARPANET (Advanced Research Projects Agency of the U.S. Department of Defense) is an example of a private communications network. CYBERNET is an example of a remote-access communications network that provides access to huge databases for their users in different countries. The Internet is a collection of networks and gateways (special- purpose dedicated computers attached to various networks routing packets of information fromone to the other), including theMilnet (military network) and NSFNET (National Science Foundation network), that function as a single, cooperative virtual network providing universal connectivity and application-level services such as the electronic mail. The Internet reaches many universities, government research labs, and military installations in several countries.


Related Discussions:- What is computer communications networks

What is a mutable member, One that can be modified by the class even when t...

One that can be modified by the class even when the object of the class or the member function doing the modification is const.

Some of the advantages of b2b, Some of the advantages of B2B are: i) En...

Some of the advantages of B2B are: i) Enhanced customer satisfaction Code ii) Enhanced inventory system iii) Simple and cost effective marketing iv) Coordination among

Describe architecture of wap gateway, Describe architecture of WAP gateway....

Describe architecture of WAP gateway. WAP GATEWAY : It is a very unique product giving semi-automatic redirection of HTML documents to WAP compatible mobile phones. Wir

Computer peripherals, Describe the 8251 A programmable communication interf...

Describe the 8251 A programmable communication interface

Where can i find my user preferences?, Customized User Preferences offer tr...

Customized User Preferences offer tremendous versatility to your individual Bugzilla experience. Let's plunge into what you can do! The first step is to click the "Edit prefs" link

What are value types and reference types, What are value types and referenc...

What are value types and reference types?  Value type - bool, byte, chat, decimal, double, enum, float, int, long, sbyte, short, strut, uint, ulong, ushort. Value types are sto

Vector-scalar instructions- vector processing, Vector-Scalar Instructions :...

Vector-Scalar Instructions : In this type, when the combination of vector and scalar are fetched and saved in vector register. These instructions are denoted with the many function

C LANGUAGE PROGRAMME, find a c program to find the area under the curve y=f...

find a c program to find the area under the curve y=f(x) between x=a and x=b,intregrate y=f(x)between the limits of a and b.the area under a curve between two points can be found b

Explain cpu based exchange, Explain CPU based exchange. CPU Based Exch...

Explain CPU based exchange. CPU Based Exchange: All the control equipment is replaced with a single processor that must be quite powerful, in centralized control. This should

The functions islower() and tolower(), Distinguish among the functions islo...

Distinguish among the functions islower() and tolower().   islower( ) and tolower( ): islower(c) is a character testing function described  in ctype.h header file. This

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd