SSDC DRIVING ACADEMY SDN. BHD.

SSDC

DRIVING ACADEMY SDN. BHD.

Price for license:

1. Class D = RM800
2. Class B2 = RM265

3. Class D+B2 = RM1000

4. Add class (B2 – D) = RM700

*GDL / PSV / CLASS E

also provided

*Transportation will be provided

JPJ TEST IS DONE HERE…

Address :

Lot 1717, Bt 21, Kg Bukit

Katong,Rim, 77000 Jasin, Melaka.

For

inquiries :

En. Faizal : 016-2492302

Ms. Farhana : 014-3680898

(SABAR MEMANDU, SELAMAT SELALU)

Telecommunications & Networking (ITE-Chapter 4)

Definition of Telecommunications
"is the sending of information in any form from one place to another using electronic or light-emitting media."

Definition of Data Communications
"describes the transmitting and receiving of data over communication links between one or more computer systems and variety of input/output terminals."

Why Telecommunications is Important?

• End users need to communicate electronically to succeed in today's global information society.


• Enhance collaboration and communication among individuals both inside and outside an organization via internet.


• Need to electronically exchange data and information with other end users, customers, suppliers and other organizations.

Applications of Telecommunication

Enterprise Collaboration Systems=
"use telecommunications networks to support telecommunication, coordination and collaboration among the members of business teams and workgroups."

Electronic Commerce Systems =
"support the buying and selling the products, services and information over the internet and other computer networks."

Internal Business Systems=
"depend on variety of computer networks to support a company's business operation."


Telecommunication Network Model

1. Terminal= any input/output device that uses telecommunications networks to transmit or receive data.


2. Telecommunication Processors= support data transmission and reception between terminals computers.[modem, multiplexer, front-end-processors]
   


3. Telecommunications Channels and Media= part of telecommunication network that connect the message source with the message receiver.


4. Computers= computer of all the sizes and types are interconnect by telecommunications networks so that they can carry out their information processing assignment.


5. Telecommunication Control Software= consists of program that control telecommunications activities and manage the functions of telecommunication networks.

Types of Telecommunication Networks

Local Area Networks(LANs)= connect computers and other information devices within a limited physical area, such as an office, manufacturing plant and other work site.

Wide Area Networks(WANs)= telecommunication network that cover large geographical area or spans a large geographical area.

Internetworks= the linking of separate networks, each each of its retain its own identity into an interconnected network.(internetwork processors= switches, routers, hubs or gateways.)

Intranets= are design to be open, but secure, internal networks whose web browsing software provides easy point-and-click access by end users to multimedia information on internal websites.(MARA)

Extranets= are networks that link some of the internet resources of a company with other organizations and individuals (authorized) (credit card)

Client Server Network= Client- on a network, any computer that can access the server.
Server- a high capacity, high speed computer with a hard disk- control all some procedures on a network.

Telecommunication Network Topologies

Topology= the way in which components of a network are connected. 3 basic topologies used in WANs and LANs :

Star Network= A network topology in which all computers and other devices are connected to a central hub.

Ring Network= A network topology in which all computers are linked by a close loop in a manner that passes data in one direction from one computer to another.

Bus Network= Network topology linking a number of computers by a single circuit with all message broadcast to entire network.

Transmission Mode

Asynchronous

• Transmit one character at a time, each character preceded by a start bit and followed by a stop bit and error check bit.


• Used for low-speed transmission rates.

Synchronous

• Transmit group of characters at a time, the beginning and end of character determine by the timing circuitry of a communication processors.


• Used by large computer to transmit huge volume of data at high speed.

Data communication lines can be connected bytwo types of configuration:

Point-to-Point Lines

• Each terminal (sender and receiver) is directly connected by their own line.


• More expensive than multi-drop lines.


• Are used if there will be continuous connections between a computer and aterminal or other computer system.

Multi-drop Lines

• Connect many devices (not just sending and receiving device).


• Cheaper than point-to-point line because each line is shared by many terminal.


• Communication Processors such as multiplexers and concentrators are used to help many terminals share the same line