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magdy medhat

What is Domain Name Resolution - 0 views

www.bleepingcomputer.com/...tutorial52.html

shared by magdy medhat on 08 Jun 09 - Cached
Islam TeCNo liked it
  • What is Domain Name Resolution Introduction When using the Internet most people connect to web sites, ftp servers or other Internet servers by connecting to a domain name, as in www.bleepingcomputer.com. Internet applications, though, do not communicate via domain names, but rather using IP addresses, such as 192.168.1.1. Therefore when you type a domain name in your program that you wish to connect to, your application must first convert it to an IP address that it will use to connect to. The way these hostnames are resolved to their mapped IP address is called Domain Name Resolution. On almost all operating systems whether they be Apple, Linux, Unix, Netware, or Windows the majority of resolutions from domain names to IP addresses are done through a procedure called DNS.
    • Ahmed Mansour
      Ahmed Mansour on 08 Jun 09
       
      i think it's great artical !!
    • Islam TeCNo
      Islam TeCNo on 08 Jun 09
       
      Yes .....we know that Web sites are on servers that has IP adresses like this 217.143.56.12 for example .....this article tell us how the site name [www.google.com] is converted to the IP thanks Mans
    • magdy medhat
      magdy medhat on 08 Jun 09
       
      ya tecno ya gamedddddd mesh de elly kona bntklm feha fel microbus :D
  • Hosts File - There is a file called the HOSTS file that you can use to convert domain names to IP addresses. Entries in the HOSTS file override any mappings that would be resolved via a DNS server
    • Islam TeCNo
      Islam TeCNo on 08 Jun 09
       
      I think this is what some spam and adware programs use .... you type a normal site Name but you go yo another site ... i think so !!
  • Netbios - This only applies to Windows machines and will only be used to map names to IP addresses if all previous methods failed. This method will attempt to map the netbios name you are trying to connect to with an IP address.
    • Islam TeCNo
      Islam TeCNo on 08 Jun 09
       
      any body can explain this point for me ?
  • ...2 more annotations...
  • This can be changed though by changing certain registry keys
    • Islam TeCNo
      Islam TeCNo on 08 Jun 09
       
      start -> run -> regedit this will allow you to edit the registry
  • DnsPriority = 30 LocalPriority = 200 HostsPriority = 75 NetbtPriority = 100
    • Islam TeCNo
      Islam TeCNo on 08 Jun 09
       
      Or Simpler DnsPriority = 1 HostsPriority = 2 NetbtPriority = 3 LocalPriority = 4
Ahmed Mansour

CRC Cards Tutorial - 0 views

users.csc.calpoly.edu/...crc_b

CRC oop

shared by Ahmed Mansour on 04 Jul 09 - Cached
  • Object Oriented Analysis and Design using CRC Cards
  • A CRC cards is an index card that is use to represent the responsibilities of classes and the interaction between the classes. CRC cards are an informal approach to object oriented modeling. The cards are created through scenarios, based on the system requirements, that model the behavior of the system. The name CRC comes from Class, Responsibilities, and Collaborators which the creators found to be the essential dimensions of object oriented modeling.
    • Ahmed Mansour
      Ahmed Mansour on 04 Jul 09
       
      One of the most popular methods for identifying and categorizing classes is to use class-responsibility-collaboration cards (CRC). Each CRC card represents a single class's data attributes, responsibilities, and collaborations. source : Thought Process Book..
    • Ahmed Mansour
      Ahmed Mansour on 04 Jul 09
       
      You need to create three sections on each card: - The name of the class - The responsibilities of the class - The collaborations of the class
  • Why uses CRC cards?
  • ...4 more annotations...
  • They are portable... No computers are required so they can be used anywhere. Even away from the office. The allow the participants to experience first hand how the system will work. No computer tool can replace the interaction that happens by physically picking up the cards and playing the roll of that object... The are a useful tool for teaching people the object-oriented paradigm. They can be used as a methodology them selves or as a front end to a more formal methodology such as Booch, Wirfs-Brock, Jacobson, etc.
  • Tutorial
    • Ahmed Mansour
      Ahmed Mansour on 04 Jul 09
       
      here we can found simple tutorial for illustration...
  • A CRC cards is an index card that is use to represent the responsibilities of classes and the interaction between the classes. CRC cards are an informal approach to object oriented modeling. The cards are created through scenarios, based on the system requirements, that model the behavior of the system. The name CRC comes from Class, Responsibilities, and Collaborators which the creators found to be the essential dimensions of object oriented modeling.
  • Why uses CRC cards? They are portable... No computers are required so they can be used anywhere. Even away from the office. The allow the participants to experience first hand how the system will work. No computer tool can replace the interaction that happens by physically picking up the cards and playing the roll of that object... The are a useful tool for teaching people the object-oriented paradigm. They can be used as a methodology them selves or as a front end to a more formal methodology such as Booch, Wirfs-Brock, Jacobson, etc.
  • Ahmed Mansour on 04 Jul 09
     
    This is great tutorial for CRC cards ( sort of object oriented modeling approach) \ni think it was useful for me ... hoping to be useful for all of us : ) ..
Islam TeCNo

OpenGL - Wikipedia, the free encyclopedia - 0 views

en.wikipedia.org/OpenGL

shared by Islam TeCNo on 10 Jun 09 - Cached
  • OpenGL (Open Graphics Library) is a standard specification defining a cross-language, cross-platform API for writing applications that produce 2D and 3D computer graphics. The interface consists of over 250 different function calls which can be used to draw complex three-dimensional scenes from simple primitives. OpenGL was developed by Silicon Graphics Inc. (SGI) in 1992[1] and is widely used in CAD, virtual reality, scientific visualization, information visualization, and flight simulation. It is also used in video games, where it competes with Direct3D on Microsoft Windows platforms (see Direct3D vs. OpenGL). OpenGL is managed by the non-profit technology consortium, the Khronos Group.
    • Mohamed Abd El Monem
      Mohamed Abd El Monem on 10 Jun 09
       
      just some info about OGL :)
    • Islam TeCNo
      Islam TeCNo on 10 Jun 09
       
      fe so2al bytra7 nafso !! ...ezaii el developers by3mlo API byshta3'l ma3 ay lo3'a !! ...ya3ni men el python OpenGL men el C++ OpenGL men el C# OpenGL!!
  • Mark Segal and Kurt Akeley authored the original OpenGL specification
    • Islam TeCNo
      Islam TeCNo on 10 Jun 09
       
      2 Names to remember :D
    • Islam TeCNo
      Islam TeCNo on 10 Jun 09
       
      LOL @ Book Names
  • ...2 more annotations...
  • (which actually has a white cover)
    • Islam TeCNo
      Islam TeCNo on 10 Jun 09
       
      Realy LOL :D :D
  • The OpenGL standard allows individual vendors to provide additional functionality through extensions as new technology is created. Extensions may introduce new functions and new constants, and may relax or remove restrictions on existing OpenGL functions. Each vendor has an alphabetic abbreviation that is used in naming their new functions and constants. For example, NVIDIA's abbreviation (NV) is used in defining their proprietary function glCombinerParameterfvNV() and their constant GL_NORMAL_MAP_NV.
Abdelrahman Ogail

Common Gateway Interface - Wikipedia, the free encyclopedia - 0 views

en.wikipedia.org/...Common_Gateway_Interface

Web-Programming

shared by Abdelrahman Ogail on 02 Jul 09 - Cached
  • The Common Gateway Interface (CGI) is a standard protocol for interfacing external application software with an information server, commonly a web server. The task of such an information server is to respond to requests (in the case of web servers, requests from client web browsers) by returning output. Each time a request is received, the server analyzes what the request asks for, and returns the appropriate output. The two basic methods for the server to do this are the following: If the request identifies a file stored on disk, then return the contents of that file. If the request identifies an executable command and possibly arguments, then run the command and return its output. CGI defines a standard way of doing the second. It defines how information about the server and the request is passed to the command in the form of arguments and environment variables, and how the command can pass back extra information about the output (such as the type) in the form of headers.
Abdelrahman Ogail

Production system - Wikipedia, the free encyclopedia - 0 views

en.wikipedia.org/...Production_system

Artificial-Intelligence Planning Scripting

shared by Abdelrahman Ogail on 09 Aug 09 - Cached
Ahmed One liked it
  • A production system (or production rule system) is a computer program typically used to provide some form of artificial intelligence, which consists primarily of a set of rules about behavior. These rules, termed productions, are a basic representation found useful in AI planning, expert systems and action selection. A production system provides the mechanism necessary to execute productions in order to achieve some goal for the system. Productions consist of two parts: a sensory precondition (or "IF" statement) and an action (or "THEN"). If a production's precondition matches the current state of the world, then the production is said to be triggered. If a production's action is executed, it is said to have fired. A production system also contains a database, sometimes called working memory, which maintains data about current state or knowledge, and a rule interpreter. The rule interpreter must provide a mechanism for prioritizing productions when more than one is triggered.
  • A production system (or production rule system) is a computer program typically used to provide some form of artificial intelligence, which consists primarily of a set of rules about behavior. These rules, termed productions, are a basic representation found useful in AI planning, expert systems and action selection. A production system provides the mechanism necessary to execute productions in order to achieve some goal for the system. Productions consist of two parts: a sensory precondition (or "IF" statement) and an action (or "THEN"). If a production's precondition matches the current state of the world, then the production is said to be triggered. If a production's action is executed, it is said to have fired. A production system also contains a database, sometimes called working memory, which maintains data about current state or knowledge, and a rule interpreter. The rule interpreter must provide a mechanism for prioritizing productions when more than one is triggered.
Islam TeCNo

Uniform Resource Identifier - Wikipedia, the free encyclopedia - 0 views

en.wikipedia.org/URI

shared by Islam TeCNo on 16 Jun 09 - Cached
  • In computing, a Uniform Resource Identifier (URI) consists of a string of characters used to identify or name a resource on the Internet. Such identification enables interaction with representations of the resource over a network (typically the World Wide Web) using specific protocols. Schemes specifying a specific syntax and associated protocols define each URI. Contents [hide]
    • Abdelrahman Ogail
      Abdelrahman Ogail on 16 Jun 09
       
      I've confused between URL & URI till reading this article !
    • Islam TeCNo
      Islam TeCNo on 17 Jun 09
       
      URL no3 men el URI :D ....ana faker eno kont shoft el 7eta deh fe ketab 3an el HTTP bas nesetha .......Zanks Zikas Again
  • A Uniform Resource Name (URN) functions like a person's name, while a Uniform Resource Locator (URL) resembles that person's street address. The URN defines an item's identity, while the URL provides a method for finding it. The ISBN system for uniquely identifying books provides a typical example of the use of typical URNs. ISBN 0486275574 (urn:isbn:0-486-27557-4) cites unambiguously a specific edition of Shakespeare's play Romeo and Juliet. In order to gain access to this object and read the book, one would need its location: a URL address. A typical URL for this book on a unix-like operating system might look like the file path file:///home/username/RomeoAndJuliet.pdf, identifying the electronic book saved in a local hard disk. So URNs and URLs have complementary purposes.
Hassan Ibraheem

Const-Correctness in C++ - 0 views

www.possibility.com/...const.html

c++ programming const

shared by Hassan Ibraheem on 05 Jul 09 - Cached
  • Hassan Ibraheem on 05 Jul 09
     
    "While it is true that using the object-oriented features of C++ requires more thought (and hence, more opportunities to make mistakes), the language provides features that can help you create more robust and bug-free applications. One of these features is const, the use of which I will address in this article. "
Islam TeCNo

Neuroplasticity - Wikipedia, the free encyclopedia - 0 views

en.wikipedia.org/...Neuroplasticity

shared by Islam TeCNo on 25 Jun 09 - Cached
  • Neuroplasticity (also referred to as brain plasticity, cortical plasticity or cortical re-mapping) is the changing of neurons and the organization of their networks and so their function by experience. This idea was first proposed in 1892 by Santiago Ramón y Cajal the proposer of the neuron doctrine though the idea was largely neglected for the next fifty years.[1] The first person to use the term neural plasticity appears to have been the Polish neuroscientist Jerzy Konorski.[2]
    • Abdelrahman Ogail
      Abdelrahman Ogail on 25 Jun 09
       
      This is why when a person thinks more he/she be more smarter!
    • Islam TeCNo
      Islam TeCNo on 25 Jun 09
       
      3azeem .....bas deh mesh 7agat related l CS ya Zi3'az
    • Abdelrahman Ogail
      Abdelrahman Ogail on 25 Jun 09
       
      How said that? It's related to Artificial Neural Networks that require understanding of actual Human Neurons. BTW, plasticity principle is used in Games AI where the Controlled-AI determines if it forgot what happened or still remember it and seeks to revenge
    • Islam TeCNo
      Islam TeCNo on 25 Jun 09
       
      oooooooooh ........ 3'reaaaaaat
Abdelrahman Ogail

SOAP - Wikipedia, the free encyclopedia - 0 views

en.wikipedia.org/SOAP

Web-Services Web Development

shared by Abdelrahman Ogail on 05 Jul 09 - Cached
  • SOAP, originally defined as Simple Object Access Protocol, is a protocol specification for exchanging structured information in the implementation of Web Services in computer networks. It relies on Extensible Markup Language (XML) as its message format, and usually relies on other Application Layer protocols (most notably Remote Procedure Call (RPC) and HTTP) for message negotiation and transmission. SOAP can form the foundation layer of a web services protocol stack, providing a basic messaging framework upon which web services can be built.
Abdelrahman Ogail

Flocking (behavior) - Wikipedia, the free encyclopedia - 0 views

en.wikipedia.org/...Flocking_(behavior)

ALife Artificial-Intelligence

shared by Abdelrahman Ogail on 07 Aug 09 - Cached
  • Flocking behavior is the behavior exhibited when a group of birds, called a flock, are foraging or in flight. There are parallels with the shoaling behavior of fish, or the swarming behavior of insects. Computer simulations and mathematical models which have been developed to emulate the flocking behaviors of birds can generally be applied also to the "flocking" behavior of other species. As a result, the term "flocking" is sometimes applied, in computer science, to species other than birds. This article is about the modelling of flocking behavior. From the perceptive of the mathematical modeller, "flocking" is the collective motion of a large number of self-propelled entities and is a collective animal behavior exhibited by many living beings such as birds, fish, bacteria, and insects.[1] It is considered an emergent behaviour arising from simple rules that are followed by individuals and does not involve any central coordination. Flocking behavior was first simulated on a computer in 1986 by Craig Reynolds with his simulation program, Boids. This program simulates simple agents (boids) that are allowed to move according to a set of basic rules. The result is akin to a flock of birds, a school of fish, or a swarm of insects.
  • Flocking behavior is the behavior exhibited when a group of birds, called a flock, are foraging or in flight. There are parallels with the shoaling behavior of fish, or the swarming behavior of insects. Computer simulations and mathematical models which have been developed to emulate the flocking behaviors of birds can generally be applied also to the "flocking" behavior of other species. As a result, the term "flocking" is sometimes applied, in computer science, to species other than birds. This article is about the modelling of flocking behavior. From the perceptive of the mathematical modeller, "flocking" is the collective motion of a large number of self-propelled entities and is a collective animal behavior exhibited by many living beings such as birds, fish, bacteria, and insects.[1] It is considered an emergent behaviour arising from simple rules that are followed by individuals and does not involve any central coordination. Flocking behavior was first simulated on a computer in 1986 by Craig Reynolds with his simulation program, Boids. This program simulates simple agents (boids) that are allowed to move according to a set of basic rules. The result is akin to a flock of birds, a school of fish, or a swarm of insects.
sally pearson

Renewing My Remote Computer Help Subscription - 1 views

My friend recommended ComputerHelpFastOnline - an emerging team of computer savvy tech support professionals - to provide computer help for my business. Thank God I heeded his words because since I...

computer help

started by sally pearson on 26 May 11 no follow-up yet
anonymous

Fix Slow Running Computer Now - 0 views

My computer is running so slow so I contact Fix Slow Computers Online. They offer online computer support services to fix slow computers. They have the best computer tech specialists who know how t...

fix slow computers

started by anonymous on 12 May 11 no follow-up yet
samantha armstrong

FixComputerpProblemsSite Surely Knows How to Fix Computer Problems! - 2 views

I was having problems with my laptop before. Good thing FixComputerpProblemsSite helped me fix it. And they are really the experts when it comes to solving any computer related issues. They can eas...

fix computer problems

started by samantha armstrong on 12 May 11 no follow-up yet
sam neilson

FixComputerpProblemsSite Surely Knows How to Fix Computer Problems! - 1 views

I was having problems with my laptop before. Good thing FixComputerpProblemsSite helped me fix it. And they are really the experts when it comes to solving any computer related issues. They can eas...

fix computer problems

started by sam neilson on 11 May 11 no follow-up yet
shai edrote

They Fixed My Slow Computer - 1 views

My computer started running so slow that it takes me 10 minutes just to open a site. So I called Fix Slow Computer Today to help me with my concern. They have expert computer technicians who can fi...

They Fixed My Slow Computer

started by shai edrote on 12 Sep 11 no follow-up yet
Rem Comp

Remote Online PC Support I Can Rely On - 0 views

I availed of the remote computer support services of Remote Computer Support Site because their services are proven to be very fast and accurate. They have expert online computer tech professional...

remote computer support

started by Rem Comp on 12 Sep 11 no follow-up yet
Rem Comp

Remote Online PC Support I Can Rely On - 1 views

I availed of the remote computer support services of Remote Computer Support Site because their services are proven to be very fast and accurate. They have expert online computer tech professional...

remote computer support

started by Rem Comp on 12 Sep 11 no follow-up yet
joey potter

I Need Computer Technical Help Now - 1 views

"I have no time to wait". That is what I muttered when my computer suddenly went on a blue screen. I had a project and I needed to pass it on time. But with my computer on trouble, I would not make...

computer technical help

started by joey potter on 02 May 11 no follow-up yet
sandy bass

Working with Desktop Support Professionals - 1 views

In today's competitive e-business landscape, I simply cannot go out of business because of downtime due to computer glitches or issues. So before it comes knocking on my door, I subscribe at Online...

desktop support

started by sandy bass on 02 May 11 no follow-up yet
Janos Haits

Numenta | NuPIC - 0 views

numenta.org

machine learning opensource AI machinelearning artificial intelligence computer Artificial-Intelligence tutorials Programming

shared by Janos Haits on 04 Jun 14 - No Cached
  • Janos Haits on 04 Jun 14
     
    Numenta.org Platform for Intelligent Computing The mission of this project is to build and support a community interested in machine learning and machine intelligence based on modeling the neocortex and the principles upon which it works.
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