IT Course

 Every day you might see  files ,images, words that looks random to you , but it's not random for other people who see it as data. So what is data exactly? It could be facts , numbers , symbols, images that are used to gather information from. Data can be classified into two types like this: Or it can be classified like this :   but where do we get data from or what are the sources of data? We can store data in multiple ways in different types of files : We said before that we use data to get informations , so what are the differences between them: Data are raw facts, building blocks for information (we can call it unprocessed information) Informations are data processed to reveal  meaning Data are stored in Databases , but what is a database? It is a large collection of related data,it models a real world organisation,  and changes in the organisation =a change in database Database allows us to : Design- construction- manipulation of data types of database along history: Why not u

 First we will talk about cloud computing. Cloud computing is the services provided by the computer, such as networks, programs, databases, and others. You only pay for the cloud services you use. Which may help business owners to reduce operating costs and manage their business. Or to help you with your own affairs such as watching a movie or editing some files and others. -models of cloud computing services. 1-Software as a Service (SAAS) allows end-users to use software applications as a service. 2-Platform-AS-A-Service (PAAS) provides the runtime environment for applications, development and deployment tools, etc. 3-Infrastructure-AS-A-Service provides access to fundamental resources such as physical machines, virtual machines, virtual storage, etc. A similar thing is cloud storage so what is the difference between them. this is some examples to see clearly what is the difference.  -Pros and Cons of Cloud Computing      --------------------------------------------------------------

  In principle, programming revolves around how to send  commands in the simplest possible way to  computer.  These orders are very simple questions.  The simpler the questions, the better . In principle,  programming is about how to send commands in the simplest way possible to a computer. These commands are very simple qu estions, and the simpler questions is better. -Examples of the above. 1-Selection (yes or no). we have other types like. Nested If Else If                                     ---------------------------------------------------------------- 2-Iteration It is the repetition of commands until a certain condition is achieved. While Loop For Loop This makes the computer repeat the process and stop itself. EX: The upper bound value of the range in the pseudocode ( 1 to 5 in the example below ) is inclusive so the final value of count that will be output is 5. or it may be like                 By:Mohamed Mostafa mohamed-21100285                                   تعليقات

 you ever thought what is the internet or how it works?? well internet is a global network that connects billions of computers across  the world  with each other and ro the world wide web The internet is set up by using physical cables such as copper telephone wires, fiber optic ,etc and even wireless connections like 3G, 4G, or Wi-Fi make use of these cables to access the Internet , so internet is actually a cable that connects you with the server. If you want to know more about internet: YouTube- االنترنت عبارة عن ايه ؟ بيشتغل ازاى ؟ | االنترنت we already mentioned the WWW (world wide web): The World Wide Web is a collection of websites or web pages stored in web servers and connected to local computers through the internet. Users can access the content of these sites from any part of the world over the internet using , the internet is the backbone of the web as it provides the technical infrastructure to establish the WWW and acts as a medium to transmit information from o

  first we got to know some basics things you can touch it (hardware) and things you can’t (software) like Application-  .Software  Database Collection of interrelated data like course- catalogs  Networks: Network infrastructure, communication media-  People- .the users  Procedure for using, operating, and maintaining an information system- .the information technology used in certain business through building information system                                     ----------------------------------- and in next we got some examples obout input and output to clarify the difference between them .output like monitor and printer. -input like kyboard and mouse- .input and output devices (buttons and ports)- like power button and HDMI port, but the specail one is the USB port you can plug in a whole range of periphral devices including scanners, printers, kybords etc   we lost many ports when the USB is back aloso we took a wireless things like wifi and  wireliss keyboards        

  We've already talked about Hardware . So we'll talk about software. A computer will not become a computer unless it exists Hardware and software. software It is simply programs within the operating system. Which allows you to use a computer, tablets and more. -next we took about the history of software. -Punch cards (simple paper cards with rows of dots) were an early attempt for programming computers, with a punch representing a zero and no punch representing a 1. How punch cards work: https://www.youtube.com/watch?v=26QPDBe-NB8 -Groups or "decks" of cards form programs and collections of data. -To run a program, programmers would first punch the cards and give the deck to the operators to load into memory and wait for the output. -One of the main negatives. 1-Computers were single-user with one application at a time, loaded after each other which took a lot of time. 2-If there was a typing error they had to re-punch an entire card. -And the way it worked

 This time we're talking about a very interesting topic which is programming , it's a bit of a long topic so it's gonna be in 2 posts  Programming is found in every device , machine or vehicle, it's what gives any of them their values   Programming is giving an order to a device for example, but you'll have to give a step by step instructions for the device to understand what you want and do it right You might have heard about Programming languages ( java , c++ , etc) ,it's a special computer language .Programming languages teaches you how to write the order in a correct form , where to put the (,) or how to start or end  Algorithms are the steps of carrying out a task or steps of solving a problem , the word algorithm comes from the name of Arab scholars "Al-Khawarizmi" who invented it in the 8th century  Why algorithms are called algorithms | BBC https://youtu.be/oRkNaF0QvnI Properties of an algorithm : Must be exact Must terminate  Must be effectiv