History of HTML

 

History of HTML

 

HTML, which stands for HyperText Markup Language, is the standard markup language used for creating web pages and applications. It provides a way to structure the content and define the layout of a webpage, including text, images, links, and other media.

 

The history of HTML dates back to the early days of the World Wide Web. Here's a brief overview of its development:

 

1. HTML 1.0: Tim Berners-Lee, the inventor of the World Wide Web, introduced HTML in 1991 as a simple markup language for sharing scientific documents. HTML 1.0 provided basic formatting elements such as headings, paragraphs, and lists.

 

2. HTML 2.0: In 1995, the Internet Engineering Task Force (IETF) published HTML 2.0 as an official specification. It introduced new features like tables, image embedding, and form elements, allowing for more complex webpage layouts.

 

3. HTML 3.2: This version, released in 1997, brought significant improvements to HTML. It added support for frames, image maps, and better table formatting. HTML 3.2 also included the introduction of Cascading Style Sheets (CSS) for styling web pages.

 

4. HTML 4.01: HTML 4.01, released in 1999, introduced further enhancements to the language. It included support for scripting through JavaScript and improved form handling. HTML 4.01 also brought new structural elements like `<div>` and `<span>`.

 

5. XHTML: XHTML, or Extensible HTML, is an XML-based version of HTML. It aimed to bring HTML closer to XML standards, making web pages more accessible to other systems. XHTML 1.0 was released in 2000, followed by XHTML 1.1 in 2001.

 

6. HTML5: HTML5, the fifth major version of HTML, was introduced in 2014. It marked a significant milestone in web development, providing a wide range of new features and capabilities. HTML5 included native support for audio and video playback, canvas for drawing graphics, new form input types, and improved semantic elements. It also enabled better cross-platform compatibility and reduced the need for browser plugins like Adobe Flash.

 

7. HTML5.1, HTML5.2, and HTML5.3: Following the release of HTML5, subsequent versions were developed to add new features and address issues. HTML5.1 was released in 2016, HTML5.2 in 2017, and HTML5.3 in 2018. These updates introduced elements like `<picture>` for responsive images, the `<dialog>` element, and various new APIs for enhanced web functionality.

 

8. HTML5.4 and Beyond: HTML5.4, also known as HTML Living Standard, is an ongoing effort to continuously improve HTML. It involves regular updates and additions to the specification, adapting to the changing needs of web developers and users. Newer versions of HTML may be developed in the future to accommodate emerging technologies and advancements in web development.

 

It's worth mentioning that HTML is often used in conjunction with other technologies like CSS for styling and JavaScript for interactivity, creating dynamic web experiences. The evolution of HTML has played a crucial role in shaping the modern web as we know it today.

Hours To Seconds in C

 A program to ask the user to give hours and then convert into seconds equivalent using C programming language.

I am currently accepting programming work, IT projects, school and application development, programming projects, thesis and capstone projects, IT consulting work, computer tutorials, and web development work kindly contact me at the following email address for further details.  If you want to advertise on my website kindly contact me also in my email address also. Thank you.

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=================================================

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Program Listing

#include <stdio.h>

int main() {
    int hours, seconds;

    printf("\n\tHours To Seconds in C\n\n");
    printf("\tEnter the number of hours: ");
    scanf("%d", &hours);

    seconds = hours * 3600;

    printf("\n\n");
    printf("\tThe equivalent number of seconds is: %d\n\n", seconds);

    return 0;
}

Advantages of Computer Science

Advantages of Computer Science

 

Advantages of Computer Science

 

1. Endless Career Opportunities: Computer science offers a wide range of career opportunities in various industries. From software development to artificial intelligence, cybersecurity to data science, computer science professionals are in high demand and can explore diverse career paths.

 

2. High Salary Potential: Computer science professionals often enjoy attractive salaries and lucrative job offers. The demand for skilled computer science professionals exceeds the supply, leading to competitive compensation packages and growth opportunities.

 

3. Innovation and Problem Solving: Computer science fuels innovation by providing tools and techniques to solve complex problems. Computer scientists develop new algorithms, create innovative software solutions, and design systems that address real-world challenges.

 

4. Technological Advancements: Computer science plays a pivotal role in driving technological advancements. It enables the development of cutting-edge technologies such as artificial intelligence, machine learning, virtual reality, and blockchain, which have transformative effects on various industries.

 

5. Automation and Efficiency: Computer science automates manual tasks and improves efficiency. It enables the development of software applications and systems that streamline processes, reduce human errors, and increase productivity in industries such as manufacturing, finance, healthcare, and logistics.

 

6. Global Connectivity and Communication: Computer science facilitates global connectivity and communication through the development of networking technologies, internet protocols, and social media platforms. It has revolutionized how people interact, collaborate, and share information across the world.

 

7. Data Analysis and Insights: With the exponential growth of data, computer science provides the tools and techniques to analyze vast amounts of data and extract valuable insights. This helps businesses make data-driven decisions, optimize operations, and gain a competitive edge.

 

8. Flexibility and Remote Work Opportunities: Computer science offers flexibility in terms of work arrangements. Many computer science professionals have the option to work remotely or as freelancers, providing flexibility in managing work-life balance and location independence.

 

9. Continuous Learning and Growth: Computer science is a dynamic field that constantly evolves with new technologies and research. Professionals in this field have the opportunity for continuous learning, keeping their skills up-to-date and staying at the forefront of technological advancements.

 

10. Impact on Society: Computer science has a profound impact on society, influencing various aspects of our daily lives. It improves healthcare through medical technologies, enhances communication and education, facilitates e-commerce and online services, and contributes to sustainability efforts through energy-efficient systems.

 

Overall, computer science offers numerous advantages, ranging from rewarding career opportunities and high salaries to technological advancements, problem-solving capabilities, and positive societal impact. It is a field that continuously evolves and shapes the world we live in.

What is Computer Networking?

What is Computer Networking?

 

What is Computer Networking?

 

Computer networking refers to the practice of connecting multiple computers and devices together to enable communication and resource sharing. It involves the design, implementation, and management of networks that allow computers to exchange data and information.

 

In a computer network, devices such as computers, servers, routers, switches, and modems are connected through various types of communication channels, including wired (such as Ethernet cables) and wireless (such as Wi-Fi or cellular networks) connections. These networks can be local (LAN), covering a small area like a home or office, or wide (WAN), spanning large geographical distances and connecting multiple locations.

 

The main purpose of computer networking is to facilitate the sharing of resources and information. By establishing a network, users can access shared files, printers, databases, and other resources from different computers within the network. Networking also enables communication through various services such as email, instant messaging, video conferencing, and web browsing.

 

Networking protocols, such as TCP/IP (Transmission Control Protocol/Internet Protocol), govern the rules and standards for data transmission and routing across networks. They ensure that data packets are properly addressed, routed, and delivered to their intended destinations.

 

Computer networking plays a crucial role in modern society, supporting businesses, organizations, and individuals in various fields. It forms the backbone of the internet, enabling global connectivity and the exchange of vast amounts of information. Additionally, it facilitates the creation of complex systems, such as cloud computing, distributed applications, and Internet of Things (IoT) devices, which rely on network connectivity for their functionality.

 

Overall, computer networking is essential for enabling communication, resource sharing, and the seamless flow of data in today's interconnected world.

What is Cascading Style Sheet?

What is Cascading Style Sheet?

 

What is Cascading Style Sheet?

 

Cascading Style Sheets, commonly referred to as CSS, is a style sheet language used to describe the presentation of a document written in HTML (Hypertext Markup Language) or XML (Extensible Markup Language). It is responsible for controlling the visual appearance of web pages and user interfaces.

 

CSS separates the content of a webpage from its presentation, allowing web designers and developers to define various aspects of the page's layout, typography, colors, and other visual elements. By using CSS, you can apply consistent styles and formatting to multiple web pages at once, making it easier to maintain and update the design across an entire website.

 

The term "cascading" in CSS refers to the way styles are applied to HTML elements. Multiple CSS rules can target the same HTML element, and the styles will be combined and applied according to a specific hierarchy and precedence. This allows for flexibility and the ability to override or inherit styles as needed.

 

CSS is based on a set of rules and selectors that define which elements in an HTML document should receive specific styles. These styles are defined using properties and values, which control attributes such as the font, color, size, margin, padding, and positioning of elements.

 

CSS has evolved over time, and there are different versions with varying levels of features and capabilities. CSS3, for example, introduced new properties, selectors, and techniques, including support for animations, transitions, and responsive design.

 

Overall, CSS is a fundamental technology in web development that plays a crucial role in creating visually appealing and engaging websites and applications.

String Lowercase Using Filter in AngularJS

String Lowercase Using Filter in AngularJS

Machine Problem

Write a program that uses lowercase filter to ask the user to give a string in upper case, and then the program will display the given string and convert into lower case of the given string on the screen.

 I am currently accepting programming work, IT projects, school and application development, programming projects, thesis and capstone projects, IT consulting work, computer tutorials, and web development work kindly contact me at the following email address for further details.  If you want to advertise on my website kindly contact me also in my email address also. Thank you.

My email address is the following jakerpomperada@gmail.com, jakerpomperada@aol.com, and jakerpomperada@yahoo.com.
My mobile number here in the Philippines is 09173084360.
Please subscribe to my channel  https://www.youtube.com/channel/UCOs-lpOoIeJoh6gpJthPoGg
=================================================

You can buy my C++ book online at  

https://www.mindshaperspublishing.com/product/beginners-guide-to-c-programming/

You can buy my book in introduction to computer networking at 
https://www.unlimitedbooksph.com/product-page/introduction-to-computer-networking

Want to support my channel?
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Jake Pomperada



09173084360

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Thank you very much for your support.




Program Listing


<!-- index.htm
  Author   : Prof. Jake Rodriguez Pomperada, MAED-IT, MIT
  Date     : August 7, 2021  9:02 PM Saturday
  Place    : Bacolod City, Negros Occidental
  Websites : www.jakerpomperada.com and www.jakerpomperada.blogspot.com
  Email    : jakerpomperada@gmail.com
 -->

<html>
  <head>
      <title>String Lowercase Using Filter in AngularJS</title>
     <script type="text/javascript" src="angular.min.js"></script>
 </head>
 <style>
body {
  font-family: arial;
  font-size: 25px;
  font-weight: bold;
}
</style>
<body>
 <div ng-app>
   <h3>String Lowercase Using Filter in AngularJS</h3>
<body>
    <div ng-app>
        <p>
            <label>Enter a String ( In Uppercase) </label>
            &nbsp; &nbsp; &nbsp; &nbsp;
            <input type="text" ng-model="given_string" size="40"/>
        </p>
        <p> Given String     : {{given_string}} <br><br>
            Lower Case String : {{ given_string | lowercase }} </p>
    </div>
</body>
    </body>
</html>

Largest of Three Numbers in Java

 A program that will ask the user three numbers and then the program will check which of the three number has the largest number using Java programming language.

 I am currently accepting programming work, IT projects, school and application development, programming projects, thesis and capstone projects, IT consulting work, computer tutorials, and web development work kindly contact me at the following email address for further details.  If you want to advertise on my website kindly contact me also in my email address also. Thank you.

My email address is the following jakerpomperada@gmail.com, jakerpomperada@aol.com, and jakerpomperada@yahoo.com.
My mobile number here in the Philippines is 09173084360.
Please subscribe to my channel  https://www.youtube.com/channel/UCOs-lpOoIeJoh6gpJthPoGg
=================================================

You can buy my C++ book online at  

https://www.mindshaperspublishing.com/product/beginners-guide-to-c-programming/

You can buy my book in introduction to computer networking at 
https://www.unlimitedbooksph.com/product-page/introduction-to-computer-networking

Want to support my channel?
GCash Account
Jake Pomperada



09173084360

Paypal
https://paypal.me/jakerpomperada

Patreon
https://www.patreon.com/jakerpomperada

Thank you very much for your support.





Program Listing

import java.util.Scanner;

public class Largest_Three_Numbers {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        
        System.out.print("\n\tLargest of Three Numbers in Java\n\n");
        System.out.println("Enter the first number:");
        int num1 = scanner.nextInt();
        
        System.out.println("Enter the second number:");
        int num2 = scanner.nextInt();
        
        System.out.println("Enter the third number:");
        int num3 = scanner.nextInt();
        
        int largest = num1; // Assume the first number is the largest
        
        if (num2 > largest) {
            largest = num2;
        }
        
        if (num3 > largest) {
            largest = num3;
        }
        
        System.out.println("The largest number is: " + largest);
        
        scanner.close();
    }
}

Display 1 To 10 Using For Loop in a Flowchart

Display 1 To 10 Using For Loop in Flowchart

 A simple flowchart to display 1 to 10 numbers using for loop statement using flowgorithm software.

What are Binary Trees?

What are Binary Trees?

 

What are Binary Trees?

 

A binary tree is a hierarchical data structure in computer science that is composed of nodes, where each node has at most two children, referred to as the left child and the right child. The binary tree is a specialized form of a tree structure.

 

In a binary tree, each node can have zero, one, or two children. The topmost node of the tree is called the root. Nodes that have no children are called leaf nodes or external nodes, while nodes with at least one child are called internal nodes.

 

The structure of a binary tree is recursive in nature, as each child of a node can also be the root of its own binary tree, with its left and right children.

 

Binary trees have various applications in computer science, including:

 

1. Binary search trees: Binary search trees are binary trees that follow a specific ordering property. The value of each node in the left subtree is less than the value of the node itself, and the value of each node in the right subtree is greater than the value of the node itself. This property allows for efficient searching, insertion, and deletion operations.

 

2. Expression trees: Binary trees can be used to represent arithmetic expressions, where operators are stored in internal nodes, and operands are stored in leaf nodes. Expression trees can be evaluated to compute the result of the expression.

 

3. Huffman coding: Binary trees are used in Huffman coding, a compression algorithm that assigns variable-length codes to different characters based on their frequencies in a given text. Huffman trees are used to generate the optimal prefix codes for compression.

 

4. Decision trees: Binary trees can be employed as decision trees, where each node represents a decision based on certain conditions or attributes. Decision trees are commonly used in machine learning and data mining for classification and regression tasks.

 

These are just a few examples of how binary trees are used. Binary trees provide a flexible and efficient data structure for various applications, allowing for efficient traversal, searching, insertion, and deletion operations.

Sample Authorization Letter

Sample Authorization Letter

 

June 21, 2021

 

#25-31 Victoria Malaga Street Eroreco Subdivision

Barangay Mandalagan Bacolod City, Negros Occidental

 

To Whom It May Concerned:

 

I am writing to authorize Mr.  Juan Dela Cruz to collect the honorarium on my behalf for being a Judge in Research Colloquium which being conducted last June 20, 2021 Via Zoom  organized by College of Arts and Sciences. Due to unforeseen circumstances, I am unable to personally attend the event and receive the honorarium.

I trust that  Mr. Juan Dela Cruz will collect the honorarium and complete any necessary paperwork or documentation required for this purpose.

Thank you for your attention to this request.

 

Sincerely,

 

Mr. Jake R. Pomperada

How To Become a Freelance Programmer?

How To Become a Freelance Programmer?

 

How To Become a Freelance Programmer?

 

Becoming a freelance programmer requires a combination of technical skills, business acumen, and self-promotion. Here are some steps you can take to become a freelance programmer:

 

1. Develop your programming skills: Start by honing your programming skills in a specific language or technology stack. Choose a programming language that aligns with your interests and the demand in the freelance market. Continuously learn and improve your skills through online tutorials, courses, and practice projects.

 

2. Build a portfolio: Create a portfolio of projects that demonstrate your programming abilities. These projects can be personal projects, open-source contributions, or freelance work you have done for clients. Showcase your best work, highlighting your problem-solving skills, code quality, and creativity.

 

3. Identify your niche: Determine your area of specialization within programming. It could be web development, mobile app development, data analysis, artificial intelligence, or any other field that interests you. Focusing on a specific niche can help you stand out and attract clients looking for expertise in that area.

 

4. Establish an online presence: Create a professional website or portfolio to showcase your skills, projects, and services. Use this platform to highlight your experience, share your contact information, and provide links to your relevant online profiles (GitHub, LinkedIn, etc.). Building an online presence can help clients discover you and validate your expertise.

 

5. Network and build connections: Connect with other professionals in the industry, both online and offline. Attend tech conferences, meetups, and networking events to meet potential clients and fellow freelancers. Engage in online communities, forums, and social media groups to share knowledge, seek advice, and make connections. Word-of-mouth referrals can be invaluable for freelance work.

 

6. Freelance platforms and job boards: Join freelance platforms and job boards specifically catered to programmers, such as Upwork, Freelancer, or Toptal. These platforms provide opportunities to find freelance projects, bid on jobs, and build your reputation through client reviews and ratings. Be proactive in applying for projects and tailor your proposals to showcase your relevant skills and experience.

 

7. Pricing and contracts: Determine your pricing structure based on factors such as your skills, experience, market rates, and the complexity of the project. Consider whether you will charge an hourly rate or a fixed price for each project. Additionally, create standard contract templates to protect your interests and clearly define the scope of work, timelines, and payment terms for your clients.

 

8. Deliver quality work and provide excellent customer service: Consistently deliver high-quality work to your clients within the agreed-upon timelines. Communicate effectively, ask clarifying questions, and provide regular updates to maintain good client relationships. Provide exceptional customer service, be professional, and address any concerns or issues promptly.

 

9. Continuously learn and adapt: Stay up to date with the latest trends, technologies, and programming languages in your field. The freelance market is ever-evolving, so it's important to adapt your skills and offerings accordingly. Invest time in learning new tools, frameworks, and methodologies to stay competitive.

 

10. Market yourself: Actively market your services through online channels such as social media, your blog, or guest posting on relevant platforms. Leverage content marketing to share your knowledge and establish yourself as an expert in your niche. Use SEO techniques to improve your visibility in search engine results. Seek testimonials from satisfied clients to build credibility.

 

Remember that building a successful freelance career takes time and effort. Be patient, persevere through challenges, and continually refine your skills and approach. Over time, as you gain experience and a positive reputation, you can attract higher-paying clients and build a sustainable freelance programming business.

What is Android Operating System?