Author Topic: ICT/Computer Studies/IT help HERE only! (Read 35365 times)

-))((-S.U.B-))((- · « **Reply #165 on:** May 19, 2009, 10:12:47 pm »

Hybrid networks use a combination of any two or more topologies in such a way that the resulting network does not exhibit one of the standard topologies (e.g., bus, star, ring, etc.). For example, a tree network connected to a tree network is still a tree network, but two star networks connected together exhibit a hybrid network topology. A hybrid topology is always produced when two different basic network topologies are connected. Two common examples for Hybrid network are: star ring network and star bus network

* A Star ring network consists of two or more star topologies connected using a multistation access unit (MAU) as a centralized hub.
* A Star Bus network consists of two or more star topologies connected using a bus trunk (the bus trunk serves as the network's backbone).

While grid networks have found popularity in high-performance computing applications, some systems have used genetic algorithms to design custom networks that have the fewest possible hops in between different nodes. Some of the resulting layouts are nearly incomprehensible, although they function quite well.

Hope you didn't understand

But don't worry read it 3 - 4 times n you'll for sure understand it!!!

n BEST OF LUCK!! every one for tomorrow ..... $:-\$ $:-\$ $:-\$ $:-\$

angell · « **Reply #166 on:** May 19, 2009, 10:14:19 pm »

A switch, like a hub, is a device that connects a number of computers together to make a LAN.

The typical use of a switch is at the centre of a star network (or as part of a hybrid network) - the switch has cables plugged into it from each computer.

A switch is a more ‘intelligent’ device than a hub: if it receives a message, it checks who it is addressed to, and only sends it to that specific computer. Because of this, networks that use switches are more secure than those that use hubs, but also a little more expensive.

mustafa_fareed · « **Reply #167 on:** May 19, 2009, 10:17:23 pm »

thanks + rep for u!

-))((-S.U.B-))((- · « **Reply #168 on:** May 19, 2009, 10:18:10 pm »

Damn am tired n still got 7 papers to go...

angell · « **Reply #169 on:** May 19, 2009, 10:20:44 pm »

dont worry, ull do it inshallah!! just focus and keep urself fresh for tomorrow!

mustafa_fareed · « **Reply #170 on:** May 19, 2009, 10:24:11 pm »

one last thing....PIN=personal identification number?

ill pray and go to sleep after an hour or so!

Good luck to u too and thanks for this wonderful site!

angell · « **Reply #171 on:** May 19, 2009, 10:29:47 pm »

no problem!

and yes PIN = personal identification number

best of luck!! Pray for us all! Bye!!

sanity_master · « **Reply #172 on:** May 19, 2009, 10:31:30 pm »

Quote from: angell on May 19, 2009, 09:56:15 pm

no probs, sure it helped rite? do u need to clear naything up? any other doubts?

no thanks.....i knew wt is expert system and all of it already....just wanted to make sure and i thought it will be great idea so no one shall ask this Q again

lol

cya l8r ppl./.........Take care

Coco · « **Reply #173 on:** May 19, 2009, 10:33:47 pm »

eey cud like ny1 gimme the defination for software copyright ?
thanks

mk.20 · « **Reply #174 on:** May 19, 2009, 10:41:38 pm »

Can some1 tell me the definition of Proxy Server.....PLEASE???

sanity_master · « **Reply #175 on:** May 19, 2009, 10:44:44 pm »

Quote from: mk.20 on May 19, 2009, 10:41:38 pm

Can some1 tell me the definition of Proxy Server.....PLEASE???

dont have the full def. i guess but wt i know is::

it filters the requests and it improves the performance

Coco · « **Reply #176 on:** May 19, 2009, 10:45:42 pm »

It controls the aspects of a computer
eg; printer server
inertnet server

angell · « **Reply #177 on:** May 19, 2009, 10:48:33 pm »

A proxy server is a computer setup to share a resource, usually an Internet connection.

Other computers can request a web page via the proxy server. The proxy server will then get the page using its Internet connection, and pass it back to the computer who asked for it.

Proxy servers are often used instead of router since additional software can be easily installed on the computer such as anti-virus, web filtering etc.

angell · « **Reply #178 on:** May 19, 2009, 10:49:14 pm »

Illegally copying software is often referred to as software piracy.

If you make a copy of a game for a friend, get the latest version of Windows from a dodgy shop, or ‘borrow’ some software from work, you are probably breaking the law.

When someone creates an original piece of software, that person then holds something called the copyright for that software. (This is also true when people create books, films and songs.)

Holding the copyright for software means that you have the protection of the law if anyone tries to steal your software.

Under copyright law, people must not:
•   Copy the software for other people
•   Lend the software to other people
•   Rent the software to other people
•   Install the software on a network when other users can access it (unless it is a special ‘network’ version)
If someone breaks the copyright, they can be punished by fines or even by imprisonment.

The reason for this is that creating software can involve the work of many people and may take thousands of hours. It is only fair that all of this effort is protected

saadmannan · « **Reply #179 on:** May 19, 2009, 10:55:22 pm »

Can somebody please help me with this question
Nov 2007 Q8b)

Can u post an image

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