Networking Fundamental

     In Networking fundamental we study the building blocks of modern network design .Where we learn about the many different types of networks, networking concepts, network architecture, network communications and network design .

                                          

       Network is a group of two or more computer systems or other devices that are linked together to exchange data. Networks share resources, exchange files and electronic communications.

Why we study network fundamental?

    Network Fundamental is important to ensure that hardware and software can work together. Without Fundamental you could not easily develop a network to share information . Along with fundamental here are some standards that are categorized in two ways 

De facto

De jure

                            : Click standards to study network standards :

Networking Standards

Who creates a formal standards?

        An official industry or government group creates a formal standard. For example, formal standards exist for Web browsers (e.g., HTTP, HTML), network layer software (e.g., IP), data link layer software (e.g., Ethernet IEEE 802.3), and physical hardware (e.g., Ethernet IEEE 802.3). (e.g., V.90 modems).Formal standards take several years to establish, during which time technology evolves and makes them outdated.

 standards that are categorized in one of two ways 

De facto

    De facto refers to something that has happened in the past or is proven to be true. Without any formal planning, these standards are developed. Because of historical developments, these standards have emerged. Many organizations around the world continue to follow these guidelines. The widely accepted SNA is an example of this.

De jure

    De jure refers to a legal or regulatory framework. These standards were created after extensive research to meet the needs of data communication. The following are the major organizations that develop communication protocols and standards:

1. American national standard institute (ANSI)
2. Institute of electrical and electronics engineers (IEEE)
3. International standard organization (ISO)
4. International telecommunications union – telecommunication standards sector (itu-t)
5. The electronic industries association (EIA)

                                                :Click above for detail:

E.R Models

 

PHYTHON

 

Python

  Python is a relatively new programming language since it was released in 1989. Still, it has got the attention of programmers and organizations after 2000, when new features and large-scale computations were added. A python is an object-oriented programming language.

     Python is one of the easiest languages to use and work with. Python can create a framework for basically any website need. This language uses simple and straightforward syntax, making it easy for web developers to work with and explain to their users. Some familiar sites that are using this language are Pinterest and Instagram. Python is the fastest-growing programming language.

     The simplicity of coding even complicated structures in Python is a big reason why web application development using Python is on the rise. Python helps software engineers cut development time from hours to minutes.

       You can use Python for web development, Data Science, Scripting, and Automation. Similar to JavaScript, Python also enjoys huge community support and has a lot of useful frameworks, libraries, and tools that can help you create a web application in quick time. Python is also a good programming language to learn Coding

     Its huge standard library and its compatibility with major systems make it come handy for enterprise app developers. Also, it’s easy syntax makes reading and redesigning quite easier.

 

  

   The most favored artificial intelligence programming language among developers that will be boosting in rank in 2020. For beginners, Python is perfect because it is simple, easy to learn, and powerful to create web applications and automation. Python is the best programming language for AI comparing to Java, C#, C++, and Ruby because it supports a functional, object-oriented and procedural-oriented programming approach.

           When compared to other object-oriented programming languages such as Java or C/C++, less coding work is required in Python saving a lot of time. However, it can get messy and complicated for massive projects because of its inability to spot errors as it is an interpreted language. Python is the ideal coding language used for machine learning, NLP, and neural network connections. Python can be used even if you are new to AI development since it is flexible and comes with pre-existing libraries like Pandas, SciPy, and nltk. Python language is lauded for its simple syntax and minimal codes.

 

        Nowadays python is gaining popularity in market. Python undoubtedly tops the list. It is widely accepted as the best programming language to learn first. Python is a fast, easy-to-use, and easy-to-deploy programming language that is being widely used to develop scalable web applications. YouTube, Instagram, Pinterest  are all build in Python coding. Python provides excellent library support and has a large developer community. The programming language provides a great starting point for beginners. Those who are looking for a better job  should definitely learn Python ASAP. A lot of Beginners are using Python as their primary backend stack .

Pros

·         The most noticeable advantage of Python, without a doubt, is the ease of use. New users can learn Python faster than any other language.

·         It is an open-source language with hundreds of built-in libraries; new features are being added to the language continuously, reducing the programmer's efforts.

·         It is paving the way to IoT(Internet of things), machine learning, and data science projects.

                                                                           Cons

·         Unlike other compiled languages, Python is an interpreted language, which may reduce speed. For example, it is slower than C or C++.

·         Python interprets one thread (instruction) simultaneously, and single-threaded programs can cause a decline inefficiency. It needs a lot of memory to perform complicated tasks.

·         Not an excellent option to work with the problematic database.

Introduction to data logic

                              data logic                                      

   A digital computer stores data in terms of numbers and proceeds in diffrent steps from one state to the next. The states of a digital computer typically involve binary digits (0 and 1) which may take the form of the presence or absence of magnetic markers in a storage medium , on-off switches or relays. In digital computers, even letters, words and whole texts are represented digitally in (o1) form.

     Digital Logic is the basis of electronic systems, such as cell phones and computers . Digital Logic is rooted in binary code, a series of zeroes and ones each having an opposite value. This system facilitates the design of electronic circuits that convey information, including logic gates. Digital Logic gate functions include and, or and not. The value system translates input signals into specific output. Digital Logic facilitates computing, robotics and other electronic applications. 

     All digital systems from the smallest to largest run on a 2-valued system (also called Binary system). So a mechanism is needed to represent the two values. This is typically accomplished with a switch that can be on or off. In the early days, mechanical switches were used, followed by vacuum tubes as switches. Today we use transistors that can be configured to approximate the switch on and off modes. Transistors are fast, inexpensive and small.

Transistor overview (the invention that makes today’s automation possible) 

     1)The transistor, invented by three scientists at the Bell Laboratories in 1947, rapidly replaced the vacuum tube as an electronic signal regulator.

   2) Transistors are the basic elements in integrated circuits (ICs). An IC consists of a very large number of transistors interconnected with circuitry and packaged into a single silicon microchip or "chip." A typical processor chip has many millions of transistors. 

   3) A transistor is developed based on semiconductor material characteristic. Semiconductor material used basically as a switch as shown below: 

The more explanation will be be on this blog soon.

Enable GingerCannot connect to Ginger Check your internet connection
or reload the browserDisable in this text fieldEditEdit in GingerEdit in Ginger×Enable GingerCannot connect to Ginger Check your internet connection
or reload the browserDisable in this text fieldEditEdit in GingerEdit in Ginger×

Introduction to DATAbASE

 Introduction to Database

     A database is a data structure that stores organized information. Most databases contain multiple tables, which may each include several different fields. For example, a company database may include tables for products, employees, and financial records. Each of these tables would have different fields that are relevant to the information stored in the table.

   Database, also called electronic database, any collection of data, or information, that is specially organized for rapid search and retrieval by a computer. Databases are structured to facilitate the storage, retrieval, modification, and deletion of data in conjunction with various data-processing operations. A database management system (DBMS) extracts information from the database in response to queries.

     Nearly all e-commerce sites uses databases to store product inventory and customer information. These sites use a database management system (or DBMS), such as Microsoft Access, FileMaker Pro, or MySQL as the "back end" to the website. By storing website data in a database, the data can be easily searched, sorted, and updated. This flexibility is important for e-commerce sites and other types of dynamic websites.

     A database is stored as a file or a set of files. The information in these files may be broken down into records, each of which consists of one or more fields. Fields are the basic units of data storage, and each field typically contains information pertaining to one aspect or attribute of the entity described by the database. Records are also organized into tables that include information about relationships between its various fields. Although database is applied loosely to any collection of information in computer files, a database in the strict sense provides cross-referencing capabilities. Using keywords and various sorting commands, users can rapidly search, rearrange, group, and select the fields in many records to retrieve or create reports on particular aggregates of data.

The more explanation will be be on this blog soon.

Enable GingerCannot connect to Ginger Check your internet connection
or reload the browserDisable in this text fieldEditEdit in GingerEdit in Ginger×Enable GingerCannot connect to Ginger Check your internet connection
or reload the browserDisable in this text fieldEditEdit in GingerEdit in Ginger×