PHP Fundamentals: Loops, Cookies, Operators, and OOP

Posted by admin on Jan 11, 2026 in Computers | 0 comments

PHP foreach Loop Syntax and Usage

The foreach loop is specifically designed to iterate over elements in arrays.

Syntax Variations

1. Iterating over values only:

foreach ($array as $value) {
    // statements using $value
}

2. Iterating over keys and values:

foreach ($array as $key => $value) {
    // statements using $key and $value
}

Example: Iterating Colors

<?php
$colors = array("Red", "Green", "Blue");
foreach ($colors as $color) {
    echo $color . "<br>";
}
// This will print each color 

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Windows System Administration and Hardware Fundamentals

Posted by admin on Jan 11, 2026 in Computers | 0 comments

TPM and BitLocker Encryption

TPM (Trusted Platform Module) is a hardware-based security chip used for storing cryptographic keys, passwords, and digital certificates securely. It is used for BitLocker encryption and Secure Boot. BitLocker requires a TPM chip on the motherboard.

Launching Advanced Startup Options Menu

There are three primary ways to access the menu:

1. Navigate to Settings > Update & Security > Recovery > Advanced startup > Restart now.
2. Use the command: shutdown /r /o /f

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NoSQL Document and Column Databases: Performance and Use Cases

Posted by admin on Jan 10, 2026 in Computers | 0 comments

NoSQL Document and Column Databases: Key Differences

NoSQL databases are broadly categorized into different types, with document-based and column-based models among the most widely used. Document-based databases, such as MongoDB, store data in flexible, self-describing documents—typically in JSON or BSON format—allowing complex, nested structures and varying fields for different records within the same collection. This flexibility supports agile development and easy mapping to application objects,

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C Language Pointers, Arrays, and String Functions Mastery

Posted by admin on Jan 9, 2026 in Computers | 0 comments

C Language: Pointers, Arrays, and String Operations

In the C language, pointers and arrays share a very close relationship. Understanding this connection is crucial for effective memory handling and efficient programming.

An array is a collection of similar data items stored in contiguous memory locations. A pointer, conversely, is a variable that stores the memory address of another variable. Since an array name represents the address of its first element, a pointer can be directly used to access

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MIPS Datapath Control Signals and Stages Summary

Posted by admin on Jan 8, 2026 in Computers | 0 comments

Step 1:

Instruction Fetch

Fetch instruction from instruction memory, update PC to PC+4

Step 2: Instruction Decode/Register Read-Read register values and/or immediate values (Does not apply to J-type instructions)

Step 3: Execution/Memory & Target Address Calculation/Branch or Jump Completion-R/I-type: ALU operation-lw/sw: add operation (address calculation)-Branch: Condition check, target address calculation-Jump: Target address calculation

Step 4: Memory Access/R-type Instruction Completion-R/I-

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Java AWT Delegation Event Model and Class Hierarchy

Posted by admin on Jan 8, 2026 in Computers | 0 comments

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