Networking - Module1

Physical connection

Connecting expansion card to a network

Logical connection

Using standards that so-called protocols

Applications

Work with protocols to send & receive data

Applications

Interpret data & display information

Transistor

Amplifies a signal or opens and closes a circuit.

Integrated circuit (IC)

Device made of semiconductor material

Integrated circuit (IC)

Contains many transistors and performs a specific task.

Resistor

Device made of material that opposes the flow of

electric current.

Capacitor

Electronic component that stores energy in the form of

an electrostatic field

Printed circuit board (PCB)

A thin plate on which chips or integrated circuits and

other electronic components are placed.

CD-ROM drive

Compact disk read-only memory drive, which is a device

that can read information from a CD-ROM.

Central processing unit (CPU)

The brains of the computer where most calculations take

place.

Floppy disk drive

A disk drive that can read and write to floppy disks.

Hard disk drive

The device that reads and writes data on a

hard disk

Microprocessor

A silicon chip that contains a CPU.

Motherboard

The main circuit board of a microcomputer

Bus

A collection of wires through which data is

transmitted from one part of a computer to

another.

Random-access memory (RAM)

RAM requires electrical power to maintain data

storage.

Read-only memory (ROM)

data has been prerecorded.

Read-only memory (ROM)

it cannot be removed and can only be read.

System unit

It includes the chassis, microprocessor, main

memory, bus, and ports.

Expansion slot

A socket locates on the motherboard

Protocols

Ethernet, Token Ring, or FDDI

Types of media

Twisted-pair, coaxial, wireless,

or fiber-optic

Type of system bus

PCI or ISA

TCP/IP

a set of protocols or rules developed to allow cooperating computers to share resources

TCP/IP

must be configured using the operating system tools.

Applications

it work in conjunction with the

browser to launch the program required to

view special files

Flash

plays multimedia files, which was created by Macromedia Flash

QuickTime

plays video files, which was created by Apple

Real Player

plays audio files

binary digits (bits)

1 and 0 are referred to as

Boolean or Binary Logic

AND, OR, NOT, NOR

Class A

Class B

Four-octet Dotted Decimal

example: 128.93.15.170

Bit

1 or 0

Bytes

8 bits

Kilobyte

1024bytes

Megabyte

1024Kbytes

Gigabyte

1024Mbytes