HTML, CSS, JavaScript & jQuery: Web Development Essentials
HTML Structure
<!DOCTYPE html>
: Declares HTML5 version.<html lang="en">
: Root element;lang
specifies language.<head>
: Metadata, links to CSS/JS, SEO content.<meta charset="UTF-8">
: Ensures proper character encoding.<meta name="viewport" content="width=device-width, initial-scale=1.0">
: Ensures responsiveness.<title>
: Defines page title.<body>
: Contains visible content.
Common HTML Elements
- Text Formatting:
<h1>-<h6>
,<p>
,<b>
,<i&
Networking Essentials: CDMA, Error Handling, and Transmission
Networking Essentials
CDMA (Code Division Multiple Access)
Q. Working of CDMA
Ans. Code Division Multiple Access (CDMA) works by assigning a unique code to each user. Here’s how it works:
- Data Encoding: Each user’s data is multiplied by a unique spreading code, spreading the signal across a wider frequency band.
- Transmission: Multiple users transmit their encoded data over the same frequency band at the same time.
- Reception: The receiver uses the corresponding unique code to decode the signal, separating
HTML Structure: Tables and Forms
Data Table Example
Col1 | Col2 | Col3 | Col4 |
---|---|---|---|
col1, Col2 | Col3 | ||
col3 | |||
Col1 | Col2 | Col3 | Col4 |
User Data Form
Personal Data
Name:
Last Name:
Email:
Status:
Active
Blocked
Canceled
Profile Option 1
Read MoreKey Concepts in Network Routing and Load Balancing
Non-Routable Addresses
What are the addresses that are not routable? Broadcast addresses.
Router Behavior with Unroutable Packets
How does a router behave if it is unable to route an IP data packet? It drops the packet and sends a Destination Unreachable ICMP message.
Conditions for Static Route Entry
What are the conditions to be satisfied before a static route is written into a routing table?
- IP routing must be enabled.
- The next-hop interface must be reachable.
- The exit interface must have an IP address
JavaScript Calculators: Simple & Compound Interest, Postfix Evaluation
Simple and Compound Interest Calculator
Develop a simple and compound interest calculator using HTML, CSS, and JavaScript.
Enter principal amount: | |
Enter time period: | |
Enter rate of interest (%): |
Simple and Compound Interest Calculator (jQuery)
Develop a simple and compound interest calculator using HTML, CSS, and jQuery.
Simple-Compound-Interest-Calculator-JQ.html
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
<script>
$(document).ready(function(
Digital Signals, Communication Media, and Computer Networks
Digital Signals
Analog Vs. Digital: The world primarily uses analog signals, while machines use digital signals. We can convert analog signals into digital ones through sampling and quantification. Bit depth determines how much information can be stored for every sample. The more bits used for each sample, the more faithful the digital signal will be to the original.
Communication Media
Between 1835 and 1900, the first 60 years of modern telecommunications, two main types of communication media emerged:
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