Transmission Networks: ISDN, ATM, and Transmission Media
ISDN Networks
Duplex Transmission of Signal (Echo Cancellation), Principle of Scrambler
DEC (Digital Echo Cancellation): Simultaneous transmission in both directions by additive block, it adds incoming useful signal, parasitic reflected signal and compensation signal produced by transversal filter, which its adaptive regulated by control processor.
Transmission of periodic sequences can negative affect function of echo compensator, so we have to use methods of signals scrambling:
- Recovering of synchronization
Computer Hardware and Software: A Comprehensive Guide
Computer Hardware and Software: A Comprehensive Guide
Internal Components
- Motherboard: The circuit board where the internal devices are connected.
- CPU (Central Processing Unit): The brain of the computer, responsible for executing all processes.
- RAM (Random Access Memory): Stores a series of basic routines that allow the processor to communicate with peripherals.
- Storage Unit: Allows for storing large amounts of data permanently.
Input and Output Units
- Input Units: Keyboard, printer, scanner, fax, mouse,
Microcomputer Architecture: Von Neumann vs. Harvard
Program
A program is a set of instructions or commands that tells the microcomputer, which is what we must do moment by moment.
Instruction
An instruction is an order that tells the machine what you should do, this instruction is divided into two parts called opcodes or instruction code and operand.
Structure of a micro computer based processor
The microprocessor-based Micromputadores consists primarily of the following parts:
Microprocessor or CPU
The Brain of the microcomputer, for in it is perform all
Read MoreComprehensive Guide to Data Communication and Transmission Technologies
Data Communication and Transmission Technologies
1. DTE and DCE: Definition and Examples
DTE (Data Terminal Equipment): Devices that generate or act as a source of digital codes. Examples: Modem, Hub, Switch.
DCE (Data Circuit-terminating Equipment): Electronics that adapt binary data to the transmission channel. Examples: PC, PLC, Router.
2. Parallel vs. Serial Transmission
Parallel Transmission
Advantages: Higher transfer rates.
Disadvantages: Requires multiple transmission lines, higher cost.
Serial
Read MoreOLAP and Data Mining: Empowering Business Decisions
OLAP: Online Analytical Processing
OLAP (Online Analytical Processing) is a powerful tool for multidimensional analysis of business data. It enables complex calculations, trend analysis, and sophisticated data modeling, providing the foundation for various business applications, including:
- Business Performance Management
- Planning and Budgeting
- Forecasting
- Financial Reporting
- Analysis and Simulation Models
- Knowledge Discovery
- Data Warehouse Reporting
OLAP empowers end-users to perform ad hoc analysis of data
Read MoreDistributed System Architectures: Client-Server Models and Remote Procedure Calls
SYSTEM:
Set of elements, procedures, methods that interact to achieve common unfin.
SO:
A set of programs that create the hardware interface / user, and has two main functions:
Manage the hardware .-
administer.
Facilitate work
–
user devices communicating with the machine.
It is stored in secondary memory. 1 loads and executes a piece of code found in the processor, which loads the BIOS, and this in turn loads the OS loads all software application programs and varied.
SOD: A set of programs that
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