Computer Free Learning

 Facebook, founded by Mark Zuckerberg in 2004, is a prominent social media platform that has revolutionized the way people connect, share, and communicate online. With over a billion active users globally, Facebook has become an integral part of modern digital culture. Here are some key aspects to consider: 1. **Social Networking**: Facebook is primarily a social networking platform, allowing users to create profiles, connect with friends, family, and colleagues, and share updates, photos, videos, and more. It enables users to maintain virtual connections and stay updated about each other's lives. 2. **News Feed**: The central feature of Facebook is the News Feed, where users see a stream of content from their friends, pages they follow, and groups they're a part of. This includes status updates, photos, links, and videos. 3. **Profile**: Users create profiles that represent their identity on the platform. Profiles include personal information, a profile picture, and a timeline...

ChatGPT is a revolutionary language model developed by OpenAI, built on the GPT-3.5 architecture. It represents a significant advancement in natural language processing and human-computer interaction. ChatGPT is designed to engage in dynamic and contextually relevant conversations with users, making it a versatile tool for a wide range of applications. At its core, ChatGPT is trained on a diverse dataset that includes a vast amount of text from books, websites, articles, and other sources. This extensive training enables it to understand and generate human-like text, making it capable of responding to a multitude of prompts and questions. The model has a "knowledge cutoff," which means it's not aware of events or developments that have occurred after its last training data update, in this case, September 2021. ChatGPT's architecture is based on a transformer model, which allows it to process and generate text in a highly coherent and contextually appropriate manner. I...

Android development refers to the process of creating applications for devices that run on the Android operating system. Android is an open-source mobile operating system developed by Google, and it powers a majority of smartphones, tablets, smart TVs, and other devices. Android apps can be developed using various programming languages and tools, but the most common approach involves using Java or Kotlin programming languages in combination with the Android Studio Integrated Development Environment (IDE). Key Components of Android Development: 1. Activities: An Activity represents a single screen with a user interface. Android apps are composed of one or more activities, and users navigate between them. 2. Fragments: Fragments are smaller modular components that can be combined within an Activity to create a flexible UI design, particularly useful for tablets and larger screens. 3. Views and Layouts: Views are the building blocks of the UI, representing buttons, text fields, images, et...

System analysis and design is a critical phase in the development of software systems. It involves a structured approach to understanding, defining, and designing solutions to meet business needs or address problems. This process ensures that the resulting system is efficient, effective, and aligned with user requirements. Let's delve into the key components and stages of system analysis and design:  1. System Analysis: Understanding Requirements and Problems In this stage, system analysts gather and analyze information to understand the current system or business processes, identify problems, and determine user needs. The goal is to define the scope and objectives of the project.  Requirements Gathering:  Analysts interact with stakeholders to gather requirements, including functional, non-functional, and user-specific needs. Interviews, surveys, observations, and workshops are used to collect detailed information. Problem Identification:  Existing problems, ineffic...

An operating system (OS) is a software layer that acts as an intermediary between computer hardware and user-level applications. It manages and coordinates hardware resources, provides an environment for software execution, and offers various services to both users and applications. Let's delve into the key components and functions of an operating system:  1. Kernel:  The Core Component The kernel is the heart of the operating system. It manages hardware resources, enforces security, and provides essential services. It consists of several core components: - Process Management:The kernel manages processes, which are instances of running programs. It schedules processes, allocates CPU time, and facilitates inter-process communication.   - Memory Management:The OS handles memory allocation and deallocation, ensuring efficient use of available memory. It creates a virtual memory space, allowing processes to access memory addresses that may not correspond directly to phy...

An algorithm is a step-by-step procedure or set of rules for solving a problem or performing a specific task. Algorithm analysis involves evaluating the efficiency and performance of algorithms, particularly in terms of their time and space complexities.  These complexities provide insights into how an algorithm's runtime and memory requirements grow as the input size increases.  Time Complexity: Time complexity measures the amount of time an algorithm takes to run as a function of the input size. It helps us understand how the algorithm's performance scales with larger inputs. Common notations used to express time complexity include Big O, Big Theta, and Big Omega. - Big O Notation (O()): It represents the upper bound on an algorithm's runtime.  For an algorithm with time complexity O(f(n)), the runtime won't exceed a constant multiple of f(n) for large inputs. -Big Omega Notation (Ω()): It represents the lower bound on an algorithm's runtime.  For an algorithm w...

Object-oriented programming (OOP) is a paradigm that revolutionized the way software is designed, developed, and maintained.  It is built on the fundamental concept of "objects," which encapsulate both data and the methods (functions) that operate on that data. OOP offers a structured approach to software development by modeling real-world entities as objects, allowing for more organized, modular, and scalable codebases. At its core, OOP is guided by four key principles: encapsulation, abstraction, inheritance, and polymorphism.   1. Encapsulation: Encapsulation refers to the bundling of data and the methods that manipulate that data into a single unit, known as a class. This concept promotes information hiding, as the internal workings of an object are concealed from external entities, enhancing data security and reducing the risk of unintended interference.   2. Abstraction: Abstraction involves simplifying complex reality by modeling classes based on their e...

A step by step instructions and guidance  on how to create a Google form Create,send,share and edit a form Google  forms are a useful tool to help you plan events, send a survey, give students  a quiz, or collect other information in an easy, streamlined way. Google forms are available for the public to access by simply giving the URL of the form to those who need to complete the form. When you send or share a form,recipients’ responses will automatically be collected.  A Google form is automatically connected to a spreadsheet with the same title.The spreadsheet defaults to private sharing. You will need to access the spreadsheet to update the sharing rights for the spreadsheet that contains the responses from completed forms. Create and send a Google form You can create and share a form from your Documents List or from any existing spreadsheet . Create a form from your Documents List: 1. Click Create new > Form. The form you create will be connected to a  sp...

Ready to start learning the best five tips to identify and clarify spam emails from your computer system Android phone. while many experienced internet users (and inexperienced as well) are used to seeing literally thousands of unread letters in their inbox, some of us want to keep the mail organized. It is also never a pleasant experience to be bombarded by spam emails.  The problem is that many spam letters actually contain viruses and other malicious content that should never be viewed or even opened. In order to avoid such things, you need to learn how to identify spam emails from regular letters sent to you by businesses and friends. Corporations devote significant resources to fight spammers, but a single user cannot rely on automation and vast resources. So what should you do? Know your enemy Spam is what we call all emails that are sent out by businesses and scammers to access wide audiences. While the vast majority of spam is harmless and will collect cybernetic dust in yo...

Firstly you will have a Gmail (google Account) to create a YouTube channel for free.Create a Gmail account To sign up for Gmail, create a Google Account. You can use the username and password to sign in  to Gmail and other Google products like YouTube, Google Play, and Google Drive. 1. Go to the Google Account creation page. This link 2. Follow the steps on the screen to set up your account. 3. Use the account you created to sign in to Gmail. Create a personal YouTube Channel Follow these instructions to create a channel that only you can manage using your Google Account . 1. Sign in to YouTube on a computer or using the mobile site. 2. Try any action that requires a channel, such as uploading a video, posting a comment, or creating  a playlist. 3. If you don't yet have a channel, you'll see a prompt to create a channel. 4. Check the details (with your Google Account name and photo) and confirm to create your  new channel. Create a channel with a business or oth...

Tricks to recover your Google account if forgotten , lost or hacked 1. If you forgot your password or username, or you can’t get verification codes, follow these steps to recover your Google Account. That way, you can use services like Gmail, Photos, and Google Play. 2. Forgot your password follow the steps to recover your Google Account or Gmail.You'll be asked some questions to confirm it's your account. Answer as best you can. 3. If you have trouble, try the tips to complete account recovery steps which are as follows :- Tips to complete account recovery steps  - If you can't sign in, follow these steps to increase your chances of getting back into your Google Account:  Then Go to the Account recovery page. As you complete the steps, use as many of the tips below as you can. -If you already tried to recover your account and got a "Google couldn't verify this account belongs to you" message, you can try aga...

A step by step guide to assist to you in creating an email address you can use to better communicate with your friends, family, and technical support. FIRST ASK YOUR SELF WHY DO I NEED AN EMAIL? - In consideration of current guidelines involving social distancing, there are ways your teacher can connect with you from the comfort of your own home. The concept of remote visits is not new, but the need to quickly transition practices to these visits has presented some challenges in registering patients. - For many of these services, you will need an email account to register. Perhaps you do not have one, or maybe even have an old one you do not use? You may even be interested in creating an email account that you use solely and specifically for your doctor’s visits. Whatever the reason, this guide will show you a simple way to get started creating a personal email. STEP ONE CONSIDERATION Choose your carrier-there are many email carriers to choose from. You may have heard of s...