Technical System

Cyber Security By - Sameer Khan  What is Cyber Security? Cyber security is the practice of defending computers, servers, mobile devices, electronic systems, networks, and data from malicious attacks. It's also known as information technology security or electronic information security. The term applies in a variety of contexts, from business to mobile computing, and can be divided into a few common categories. Network security is the practice of securing a computer network from intruders, whether targeted attackers or opportunistic malware. Application security focuses on keeping software and devices free of threats. A compromised application could provide access to the data its designed to protect. Successful security begins in the design stage, well before a program or device is deployed. Information security protects the integrity and privacy of data, both in storage and in transit. Operational security includes the processes and decisions for handling and protecting data assets...

 What is Netiquette? 20 Internet Etiquette Rules By - Sameer Khan What is netiquette? Netiquette is a made-up word from the words net and etiquette. Netiquette thus describes the rules of conduct for respectful and appropriate communication on the internet. Netiquette is often referred to as etiquette for the internet. These are not legally binding rules, but recommended rules of etiquette. Netiquette is mostly used for dealing with unknown people on the internet. The rules of netiquette very depending on the platform and its participants . Generally, it is up to the operator of a website or communication app to specify the type and scope of netiquette. It is also their responsibility to monitor compliance with these basic rules and to penalize violations of them. Netiquette: General rules of conduct When communicating on the internet, you should always remember that you are communicating with people and not simply with computers or smartphones. As in the real world, rules of etiqu...

 "The Ultimate Guide: How to Secure Your WhatsApp and Protect Your Privacy" By - Sameer Khan Introduction: In the digital age, where communication is at our fingertips How to Secure your WhatsApp, securing our private conversations is of utmost importance. WhatsApp, being one of the most widely used messaging platforms, requires special attention to ensure the privacy of our messages and personal information. In this comprehensive guide, we will explore effective strategies and best practices on how to secure your WhatsApp account and protect your privacy. 1. Enable two-step verification: One of the most basic but effective ways to increase your WhatsApp security is to enable two-step verification. This adds an extra layer of security by requiring a PIN that you set, making it harder for unauthorized users to access your account.      - Open WhatsApp and go to "Settings".       - Go to "Account" and select "Two-Step Verification."     ...

 The Future of Android Developers in 2025 By - Sameer Khan The future of android developers in 2025. The Future of Android Developers in 2025 In the fast-paced field of technology, as we approach 2025, (The Future of Android Developers in 2025) the role of Android developers is set for an unprecedented metamorphosis. This article serves as your compass through the emerging landscape, highlighting key trends and developments that will shape it. The future of Android developers. Join us on this journey as we explore the skills, tools, and opportunities that will lead to success in the Android development field. 1) AI and Machine Learning Integration: Unleashing the Power of Tomorrow's Apps Be prepared to see a paradigm shift in Android development as the symbiotic relationship between artificial intelligence (AI) and machine learning (ML) takes center stage in 2025. Android developers will be at the forefront of this revolution, filling their applications with learning capabilities. ...

Android Development Jobs Profile and Salary By - Sameer Khan   "Unlocking Opportunities: A Comprehensive Guide to Android Development Jobs, Profiles, and Salaries" In the ever-evolving landscape of technology, Android development has emerged Android Development Jobs Profile and Salary  as a dynamic and demanding field, offering innumerable career opportunities for tech enthusiasts. This comprehensive guide dives deep into the world of Android development jobs, exploring different job profiles, and revealing the salary landscape, providing valuable insight for those considering a career in this exciting field. Android Development: A Prosperous Career Option 1. Overview of Android Development: - Android development involves creating applications for devices running the Android operating system. With the widespread use of smartphones and the continuous growth of the Android user base, the demand for skilled Android developers is at an all-time high Android Development Jobs Profi...

Topology By - Sameer Khan What is topology ? Topology defines the structure of the network of how all the components are interconnected to each other. There are two types of topology: physical and logical topology. Types of network topology Bus Tree  Mesh  Ring Star  Hybrid 1) Bus Topology  The bus topology is designed in such a way that all the stations are connected through a single cable known as backbone cable. Each node is either connected to the backbone cable by drop cable or directly connected to the backbone cable. When a node wants to send a message over the network, it  puts a message over the network. All the stations available in the network will receive the message whether it has been addressed or not. 2) Ring Topology Ring topology is like a bus topology, but with connected ends. The node that receives the message from the previous computer will retransmit to the nest node. The data flows in one direction, i.e., it is unidirectional. The data flow...

 Features of Computer Network By - Sameer Khan What is features of computer network ? A list of Computer network features is given below. Communication speed File sharing Back up and Roll back is easy Software and Hardware sharing Security - Communication Speed. Network provides us to communicate over the network in fast and efficient ,manner. For example, we can do video conferencing, email messaging, etc. over the internet. Therefore, the computer network is a great way to share our knowledge and ideas. - File Sharing. File sharing is one of the major advantage of the computer network. Computer network provides us to share the files with each other. - Back up and Roll Back is easy. Since the files are stored in the main server which is centrally located. Therefore, it is easy to take the back up from the main server. - Software and Hardware Sharing. We can install the applications on the main server, therefore, the user can access the applications centrally. So we do not need to ...

By - Sameer Khan Differences between Internet and Intranet Internet is general to PCs all over the world whereas intranet is specific to few PCs. Internet provides a wider and better access to websites to a large population, whereas intranet is restricted. Internet is not as safe as intranet. Intranet can be safely privatized as per the need.     - Internet It is a worldwide/global system of interconnected computer network. it uses the standard internet protocol ( TCP/IP ). Every computer in internet is identified by a unique IP address. IP address is a unique set of numbers (such as 110.22.33.114) which identifies a computer's location.     - Intranet  Intranet is the system in which multiple PCs are connected to each other. PCs in intranet are not available to the world outside the intranet. Usually each organization has its own intranet network and members/employees of that organization can access the computers in their intranet. ~ Thanks for read my blog.

 Network By - Sameer Khan What is Network ? A computer network is a system in which multiple computers are connected to each other to share information and resources. Characteristics of a Computer Network Share resources from one computer to another. Create files and store them in one computer, access those files from the other computers (s) connected over the network. Connect a printer, scanner, or a fax machine to one computer within the network and let other computers of the network use the machines available over the network. ~ Thanks for read my blog.

 Computer Software By - Sameer Khan Computer Software:   Computer hardware in itself cannot perform any useful task. It must be complemented with some instructions, which the hardware understands and obeys. A program is the name given to a list of instructions or statements that direct the computer to performed the required tasks. Types of Computer Software  System Software  Application Software  - System Software  System Software, or system packages are sets of on or more programs that are basically designed to control the operation of a computer system. In general, system packages control the following. 1. Running of other software packages. 2. Communicating with peripheral devices such as printers, hard disk and taps devices etc. 3. Monitoring the use of various hardware resources such as memory, peripherals, CPU etc.  - Application Software Application software is a program or group of programs designed for end the need of a specific group of users...

 Compiler and Interpreter  By - Sameer Khan Compiler A computer is a software program that transforms high-level source code that is written by a developer in a high-level programming language into a low level object code (binary code) in machine language, which can be understood by the processor. The process of converting high-level programming into machine language is known as compilation. High Level Language High level language are close to human language and far form the machine. These language consist of symbols and a few punctuation characters. C/C++, Java are high level languages. Interpreter An interpreter is a computer program that is used to directly execute program instructions written using one of the many high-level programming languages. The interpreter transforms the high-level program into an intermediate language that it then executes, or it could parse the high-level source code and then performs the commands directly, which is done line by or statements by s...

By - Sameer khan   Register Memory Register is a small high speed memory memory inside in CPU. It is used to store data and instructions temporarily. Data is stored in registers from main memory for execution. CPU contain a number of registers. Each register has a pre define function. Register size determines how much information it can store. 1). Register Memory Register memory is the smallest and fastest memory in a computer. It is not a part of the min memory and is located in the CPU in the form of registers, which are the smallest data holding elements. A register temporarily holds frequently used data, instructions, and memory address that are to be used by CPU. They hold instructions that are currently processed by the CPU. All data is required to pass through registers before it can be processed. So they are used by CPU to process the data entered by the users. ~This blog has been created so that all of you should know what is register memory.

WEBSITE ? By - Sameer Khan 1. What is Website? A website is a collection of publicly accessible, interlinked web pages that share a single domain name. Websites can be created and maintained by an individual, group, business or organization to serve a variety of purposes. Websites come in a nearly endless variety, including educational sited, news sites, forums, social media sites, e-commerce sites, and so on. The pages within a website are usually a mix of text and other media. That said, there are no rules dictating the form of a website. 2. How to website work? A website is simply a collection of web pages of codes-codes that describes the layout, format and content on a page. The web server is a internet-connected computer that receiver the request for a web page sent by your browser. The browser connects your computer to the server through an IP address. The IP address is obtained by translating the domain name. In other words, in order to display your website on the internet,...

By - Sameer Khan Computer Virus  Computer viruses are unwanted software programs or pieces of code that interface with the functioning of the computer. They spread through contaminated files, data, and insecure networks. Once it enters your system, it can replicate to produce copies of itself to spread from one program to another program and from on infected computer to another computer. So, we can say that it is a self- replicating computer program that interferes with the functioning of the computer by infecting files, data, programs, etc. Symptoms of a Computer Virus :- Slow computer performance: The machine may work slowly, e.g., it will take more time to open or shut down the computer or while opening a file, document, computer application, etc. The operating system and internet speed may get slow. Frequent pop-ups: A virus may cause unusual frequent pop-ups on your window.  Hard Drive issue: The hard drive may exhibit unusual high activity even when it is not in use. ...