Computer Networking

Client is when the images, animation, and other things on the page is not needed to go back to the server and load it all. Server is when the images, animation, and other things on the page need to be taken from the server every time. Its very useful to have Client because that way all the information on your page does not need to be reloaded every time. instead it is stored in history and is retrieved much faster.

yes i definetly think that high level language is better than low level language!!! because it provides a much user friendly environment and makes programmes easier to read and write...It also makes the program less error prone.. The speed of writing programs also becomes easy

The problem related with this technique are as follow: To many people emplyeed in the decision making process causing long term planning before an agreement is reached. Sometimes the influencer maker in the belonging group might furhter emphasize his opinion towars a strategic which it is not very wise. The problem related with this technique are as follow: To many people emplyeed in the decision making process causing long term planning before an agreement is reached. Sometimes the influencer maker in the belonging group might furhter emphasize his opinion towars a strategic which it is not very wise.

It is the pure sine wave signal with no modulation (data, information). It doesn't vary in amplitude or frequency. Not really a signal yet, which implies information. Call it a wave.

From there, we have:

CW- Morse code by turning the carrier on and off

ICW- the I means interupted, close to the same as CW

MCW- still coded but by Modulating the carrier with a tone.

AM- the amplitude is modulated (by voice or tone) Basic voice- but creates sidebands

FM- The frequency is modulated...

SSB-Single sideband. Like AM but without the carrier and one sideband. Low bandwidth, low power.

FSK- Frequency shift Keying, where the frequency of the modulation source is shifted hi to lo in ASCII, for teletype communication via radio links..

At this point a bit more complex....

1. Relational Model : Newer database model; Network Model - Older database model

2. The network model structures data as a tree of records with each record can have multiple parent and child records, forming a lattice structure.

The basic data structure of the relational model is the table, where information about a particular entity (say, an employee) is represented in columns and rows

3.The relational model has strong mathematical foundation with set theory and predicate logic. Network Model has no strong mathematical background.

4. Relational model is the most flexible of the database models. Network model is not very flexible.

5. Relational model has widespead use. Network model has limited use.

In internet protocol suite UDP is the connectionless protocol. There is no initial communication between client and server. UDP will not check whether the transmission was successful.

Routing protocol is used to dynamically learn routing information so routers know where to send packets. The only other option is to manually define all routers within a network which would be very impractical.

Multiplexing is the ability of a number of devices to share a transmission facility.If each device needs the facility only a fraction of time,then the sharing arrangement allows the cost of the facility to be spread over many users.

post by Mohammed Alkhattab

quote from William Stallings book

One way data communication.

http://en.wikipedia.org/wiki/Simplex_communication

HTTP is called a stateless protocol because each command is executed independently, without any knowledge of the commands that came before it. This is the main reason that it is difficult to implement Web sites that react intelligently to user input. This shortcoming of HTTP is being addressed in a number of new technologies, including ActiveX, Java, JavaScript and cookies.

Basically it's all of your networks and supporting systems and in some cases the entire IT department as well.

32 kHz

Yes, but it's at a different frequency than your internet. Chances are before you got FiOS your internet and phone still used the same fiber optic cable.

Like peeling an onion, you will cry when you go through the layers!

Each layer has its own functionality and the interfaces between adjacent layers. It would be necessary to construct and interpret these in-coming and out-going requests to accept and pass onto the next layer, and hence adding some storage and processing time to the request - less efficient.

The transmission characteristic of a fiber optic channel is highly non-linear. It makes it a very bad medium for analog signals. Luckily it doesn't interfere with digital transmissions.

Well do you mean for the purposes of research and development? To process, create, and display numerous things to complicated for most minds. Like DNA sequencing, development of drugs and treatments, logging large numbers of test studies.

For more mundane things, to keep track of patient records, take x-rays, see things we can't, some forms of remote surgery.

A great many things more as well. Please be more specific to receive more relevant help.

The answer to your question is Spreadsheet.

#include[stdio.h]

#include[math.h]

#define epsilon 1e-6

void main()

{

double g1,g2,g,v,v1,v2,dx;

int found,converged,i;

found=0;

printf(" enter the first guess\n");

scanf("%lf",&g1);

v1=g1*g1*g1-15;

printf("value 1 is %lf\n",v1);

while (found==0)

{

printf("enter the second guess\n");

scanf("%lf",&g2);

v2=g2*g2*g2-15;

printf(" value 2 is %lf\n",v2);

if (v1*v2>0)

{found=0;}

else

found=1;

}

printf("right guess\n");

i=1;

while (converged==0)

{

printf("\n iteration=%d\n",i);

g=(g1+g2)/2;

printf("new guess is %lf\n",g);

v=g*g*g-15;

printf("new value is%lf\n",v);

if (v*v1>0)

{

g1=g;

printf("the next guess is %lf\n",g);

dx=(g1-g2)/g1;

}

else

{

g2=g;

printf("the next guess is %lf\n",g);

dx=(g1-g2)/g1;

}

if (fabs(dx)'less than' epsilon

{converged=1;}

i=i+1;

}

printf("\nth calculated value is %lf\n",v);

}

the digital signals frequency is infinite ,i.e ranges from 0.....infinity

In electrical circuits series and parallel are two basic ways of wiring components. The naming comes after the method of attaching components, i.e. one after the other, or next to each other. As a demonstration, consider a very simple circuit consisting of two light bulbs and one 9V battery. If a wire joins the battery to one bulb, to the next bulb, then back to the battery, in one continuous loop, the bulbs are said to be in series. If, on the other hand, each bulb is wired separately to the battery it is wired in a parallel circuit.

City networks are commonly known as WAN's, or Wide Area Network's.

you find his ip address and you type this in your command prompt window.. format *.*

it will format his hard drive, make his monitor catch fire, and his computer will start laughing at him in a evil Satan voice

seriously thou... DONT DO THAT.. its a joke

you don't destroy a hacker, you just protect yourself from one.. its called a firewall or antivirus

There is a phenomenon in optics called "total internal reflection". Suppose a light ray is in some medium like glass and is about to exit into the air. If the ray is incident on the glass/air surface at a large enough angle then it gets totally reflected back into the glass. This phenomenon is used in fibre optics. Light is sent into the end of the fibre at an angle, so it travels a short distance and hits the side of the fibre glass tube. Because it is basically a glass/air surface it gets reflected back into the tube and ,of course, promptly hits the other side. But again it is reflected, rather then escaping into the air. So the light travels down the tube, bouncing off the sides as it goes. This is a really neat way of guiding the light along a path you want it to go. The "internal reflection" is highly efficient (meaning almost none escapes). The phenomenon only works when light is in a more dense medium (glass) then the surrounding medium (air). Another words it doesent work if the light is in air and about to enter the glass. In that case some light gets reflected but most of it will travel into the glass. You might try this effect in a swimming pool. Some night take a flashlight under water. First shine the light directly up. It will have no trouble escaping. Now slowly turn the flashlight so the beam hits the surface at an angle. There will be an angle ,called the critical angle, at which the beam is all of a sudden reflected from the surface, back into the pool. The water surface has to be nice and still for this to work but you should be able to see the beam go thru this change. And a person outside should see the bright spot on the surface almost dissapear, since the light is no longer escaping from the water.

Cable tray is a system of wiring in a building in which insulated electrical wires are used to distribute power and communication to various access points. Cable trunks are power supply lines that are used to distribute power and communication services to large areas such as industrialized cities.

A plus sign to the left of a folder in Windows Explorer indicates that the folder is:

a Parent folder containing Subfolders within.