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 small computer systems interface, Q. What is Small Computer Systems...

Q. What is Small Computer Systems Interface? The other well-liked way is to connect a disk drive to a PC by a SCSI interface. Common drive choice for high-end workstations or s

Describe how a mobile terminating call, Problem: (a) Describe how a Mob...

Problem: (a) Describe how a Mobile Terminating call, from a PSTN phone, is processed in a GSM network. Illustrate your answer with a diagram. (b) What is a GPRS Support node

Responsibilities of objects, The Transaction object is responsible for read...

The Transaction object is responsible for reading the transaction file, finding the relevant account in the array of customers and applying the transaction. To find the relevant ac

Programming, DADA Electronics makes CD players in 3 processes: programming,...

DADA Electronics makes CD players in 3 processes: programming, and packaging. Direct materials are added at the starting of the assembly process. Conversion costs are incurred even

Adding layers to the timeline, ADDING LAYERS TO THE TIMELINE AND GIVING MOT...

ADDING LAYERS TO THE TIMELINE AND GIVING MOTION TO THE LAYER Step 1:  Choose Layer from Common toolbar after that draw a layer. Step 2:  Write the text inside Layer. Step

Overall computing time, Clustering has been existing since the 1980s when i...

Clustering has been existing since the 1980s when it was used in DEC's VMS systems. IBM's SYSLEX is a cluster approach for a mainframe system. Sun Microsystems, Microsoft, and othe

Illustrate about the word processors with its design, Illustrate about the ...

Illustrate about the Word processors with its design Word processors now have many aspects over and above the original task of generating a typed document. This section would

IEEE802.4 Token Bus Network, en a five station token bus LAN with station a...

en a five station token bus LAN with station addresses of 3000, 500, 100, 70, and 50. Stations with addresses of 5000, 4000, 400, 90, and 60 are waiting to enter the ring. Assume a

Elements of composition - line, Line A Line is, on a simple level, a ma...

Line A Line is, on a simple level, a mark connecting 2 points. However, how lines are used in an image is extremely important. By varying the quality of line used in an image,

Define about exe programs, Q. Define about EXE Programs? An EXE program...

Q. Define about EXE Programs? An EXE program is stored on disk with extension .exe. EXE programs are longer than COM programs as every EXE program is related with an EXE header

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