Computer Lesson 2

Post on 18-May-2015

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Transcript of Computer Lesson 2

Company

LOGO

Prepared by: Myla T. De la Peña

Objectives

THINGS NEEDED TO ACCESS THE INTERNET THINGS NEEDED TO ACCESS THE INTERNET

TYPES OF MODEM TYPES OF MODEM

TYPES OF HIGH-SPEED CONNECTING TO THE INTERNET

TYPES OF HIGH-SPEED CONNECTING TO THE INTERNET

THINGS NEEDED TO ACCESS THE INTERNET

COMPUTER PROGRAMS MODEM TELEPHONE LINE

Any computer can be used to get connected to the Internet.

Special programs are used on the internet. These programs are given free cost by most server providers.

Serves in exchanging information between a computer and the internet.

All internet information travels over the telephone lines.

COMPUTER

PROGRAMS

MODEM

TELEPHONE LINE

THINGS NEEDED TO ACCESS THE INTERNET

ISDN

(Integrated Services Digital Network )

Is an international telecommunication

standard for transmitting voice, video and data over digital lines running at 64kpbs (kilobits

per second).

SPEAKER ISP

Allows us to hear music, voice and

other sounds generated by the

computer.

(Internet Service Provider)

Is a company that provides access to the internet.

Integrated Services Digital Network

SPEAKER

Internet Service Provider

A device that enables a computer to transmit data. Computer information is stored digitally whereas information transmitted

Over telephone lines id transmitted in the form of analog waves.It coverts these two forms:

MODEM (Modulater- DEModulator)

External Modem

InternalModem

External Modem

A modem that is connected on the outside of the computer . An external modem is generally

connected to the serial port or USB port.

One of the advantages of the external modem is that by looking at the display lights on the case,

one can quickly check the status of the modem.

External Modem

InternalModem

It is the type of modem that is installed inside the computer. An internal modem does not provide a series of display

lights that inform the user of the changing modem status.

The user must rely entirely on the communications program.

Internal Modem

TYPES OF HIGH SPEED CONNECTION

(Integrated Services Digital Network )

Is an international telecommunication

standard for transmitting voice, video and data over digital lines running at 64kpbs (kilobits

per second).

ISP

Used to achieve extremely fast access

to the World Wide Web. It is an excellent mode

for transferring information for Internet

and cable TV companies. Cable

modems offer speeds up to 2 Mbps

(Digital Subscriber Line)

Is a service that offers a faster

Internet connection. DSL gives ‘always-on’ Internet access

and does not tie up with the phone

line.

DSLCABLE MODEM

ISDN

Integrated Services Digital Network

CABLE MODEM

Digital Subscriber Line

Study for 15 minutes.

Test 1. Define the following (2 points each)

1. Computer2. Modem

Test II. Identification

____ 1. It is use to access the internet where in a special programs are used on the Internet. These programs are given free of cost by most server provider.____2. It allows us to hear music, voice and other sounds generated by the computer.____3. An international telecommunications standard for transmitting voice, video, and data over digital lines running at 64 Kpbs.____4. It is used to achieve extremely fast access to the World Wide Web. It offers speeds up to 2Mbps.____5. Its gives ‘always-on Internet access and does not tie up with the phone line.____6. All internet information travels over the telephone lines.____7. It is the type that is installed inside the computer.____8. It is the type of modem that is connected on the outside of the computer .____9. It is a company that provides access to the Internet for a monthly fee.

Assignment: