Computers Archives - Student Notes

5G Architecture, D2D Communication, and RAN Fundamentals

Posted by admin on May 27, 2026 in Computers | 0 comments

5G Frequency Domain Structure

Resource Element (RE): Smallest unit = 1 subcarrier × 1 OFDM symbol.
Resource Block (RB): 12 consecutive subcarriers in the frequency domain. Unlike LTE (2D), 5G RB is 1-dimensional (frequency only).
Scalable Subcarrier Spacing (Numerology): 15, 30, 60, 120, 240 kHz — selected based on frequency band and use case.
Bandwidth Parts (BWP): UE can be configured to use only a portion of the total carrier bandwidth, saving battery for IoT devices.
Maximum Single-Carrier Bandwidth:

Microprocessor Systems: 8086 and ARM Architecture Reference

Posted by admin on May 24, 2026 in Computers | 0 comments

CMPS201 Microprocessor Systems Reference: Front

8086 Architecture and Layer Stack

Layer Stack (Bottom to Top):

Physics → Transistors → Logic Gates → Microarchitecture (This Course) → Instruction Set Architecture (ISA) → Operating System → Application

Microprocessor (MPU) vs. Microcontroller (MCU)

Feature	MPU	MCU
Type	CPU only	System on Chip (CPU, RAM, ROM, I/O)
External Hardware Needed?	Yes (Motherboard, RAM)	No (Just battery and crystal)
Example	Intel i7, AMD Ryzen	STM32, ATmega, Arduino
Use Case	PC

Essential Java Programming Concepts and Frameworks

Posted by admin on May 23, 2026 in Computers | 0 comments

Java Fundamentals: JDK, JRE, and JVM

(a) Differentiate between JDK, JRE, and JVM.

JVM (Java Virtual Machine): An abstract machine that runs Java bytecode. It converts .class files into machine code and is platform-dependent.
JRE (Java Runtime Environment): Provides the environment to run Java programs. It contains the JVM, libraries, and supporting files, but does not include development tools.
JDK (Java Development Kit): Used to develop Java programs. It contains the JRE plus development tools (compiler

JavaScript Asynchronous Programming: Key Concepts and Patterns

Posted by admin on May 22, 2026 in Computers | 0 comments

JavaScript Asynchronous Fundamentals

Understanding Callbacks

Definition: A function passed as an argument to another function, executed after an operation completes.
Applications: Handling setTimeout delays, loading external scripts/stylesheets, and managing user interactions.
Challenges: Callback hell, increased complexity, and scalability issues.
Interdependency: Created by nesting one callback inside another.

Promises and Promisification

Core Concept: Represents the eventual completion or failure of

Python JSON Persistence and Attribute Validation

Posted by admin on May 21, 2026 in Computers | 0 comments

Enterprise Manager and Data Management

The following implementation defines a robust system for managing enterprise data, custom attribute validation, and JSON-based persistence.

Class EnterpriseManager

The EnterpriseManager class handles the creation of data objects and executes their primary actions.

class EnterpriseManager:
    def nuevo_metodo(self, param1, param2):
        obj = ClaseNuevaDeDatos(param1, param2)
        return obj.accion()

Class AtributoNuevo

This class extends Attribute to provide

Essential Python Programming Concepts and Examples

Posted by admin on May 17, 2026 in Computers | 0 comments

Mutable vs Immutable Data Types

Mutable: Value can be changed after creation. Examples: list, dict, set.
Immutable: Value cannot be changed after creation. Examples: int, float, string, tuple.
Mutable objects can be modified in place; immutable objects create a new object on modification.

Break vs Continue Statements

break: Terminates the loop immediately and control moves to the statement after the loop.
continue: Skips the current iteration and moves to the next iteration of the loop.

for i in range(

« Older Entries