Hardware and Functions for Internet Access

Hardware and Functions for Internet Access

Computer is the main component to be able to access the Internet.

Processor Minimum Pentium III 500MHz processor.

RAM (Random Access Memory) serves as a temporary storage media. Minimum 64MB RAM

Hard Drive used for magnetic data storage media. At least 10GB hard drive

VGA card Hardware is to display the image on the monitor screen. At least 4MB of VGA card.

Router A computer network device that sends data packets through a network or the Internet to the destination, through a process known as routing.

Repeater Used repeater is a device to receive signals and signals with the Retransmit These Same with the original signal power, the short repeater function to Strengthen the signal to be sent The Same signal with the original signal.

Sound Card A component contained in a PC that served to support the voice functions in a multimedia PC.

LAN Card Network card (UK: network interface card or NIC also abbreviated network card) is a card that serves as a bridge from the computer to a computer network.

UTP cable Unshielded twisted-pair (UTP abbreviated) is a type of network cables that use copper base material, which is not equipped with an internal shield.

Bridge Network A network component used to extend the network or create a network segment.

HUB Is one of the devices in a computer network that allows you to connect between segments in the network.

Modem (Modulator Demodulator) Modem acronym derived from modulator demodulator. Modulator is a part that converts the signal information into a carrier signal (Carrier) and ready for delivery, while the Demodulator is the part that separates the information signal (which contain data or messages) of the signal (carrier) that accepted so that the information can be well received.

Based on its function divided into three types of modems. Among others:

The Dial Up Modem (Internal / External / Cable Modem / DSL modem) Dial Up Modem commonly used by the Personal Computer (PC) is directly connected via phone lines. Type of dial-up modem there are two types, namely:

1) Internal Modem Internet modem is a modem installed in your computer, especially on an available expansion slot in your computer mainboard. Average speed internal modem to download is 56 Kbps. * The advantage of using internal modems: a) More efficient places and more economical price b) Does not require an adapter so impressed a lot more concise without cables.

* The weakness of internal modems: a) Modem does not require the indicator light so it is difficult to monitor modem status b) This modem is not using their own sources of stress that requires power from the power supply. This caused the temperature in the CPU box to get hot.

2) External Modem External modem is a modem that is located outside of the computer CPU. * The advantages of an external modem: a) Portability is good enough so that it can move around to use on another computer b) Equipped with indicator lights making it easy to monitor the status of the modem. * The weakness of the external modem: a) The price is more expensive than internal modems b) takes place or a separate location to put the modem.

Cable Modem (Cable Modem) Cable Modem (Cable Modem), is the hardware that connect your PC with a cable TV connection. This cable TV network can be used to connect to the Internet at speeds higher than dial-up modem or ADSL modem, cable modem speed of maximum 27Mbps downstream (download speed to the user) and 2.5 Mbps upstream (upload speed of the user).

ADSL MODEM (Asymmetric Digital Subscriber Line) ADSL, or Asymmetric Digital Subscriber Line is a form of DSL technology. The main idea is to break the ADSL phone line signal into two parts for voice and data. This allows users to make or receive phone calls and connect to the Internet simultaneously without interrupting each other.

Modem Type 1. Analog modem is a modem that converts analog signals into digital signals 2. ADSL Modem 3. Cable Modem is a modem that receives data directly from service providers via cable TV 4. CDMA Modem 5. Modem 3GP 6. GSM Modem

Line (Line Telephone), cable TV, ISDN, Satellite, Mobile

1) ISDN ISDN (Integrated Services Digital Network) is a telecommunications system in which the services of data, voice, and images integrated into a tissue, and an analog telephone transmission systems to digital systems. ISDN users are given the advantage of flexibility and cost savings, because the cost for this integrated system will be much cheaper when using a separate system. ISDN services provided by your ISP called NSP (Network Service Provider). Inside there are two types of ISDN services, namely: Basic Rate Interface (BRI) Primary Rate Interface (PRI)

2) Satellite VSAT (Very Small Aperture Terminal) is the signal from the satellite receiving station with a dish-shaped antenna receiver with a diameter of less than 3 meters. The main function of the VSAT is to receive and send data to satellites.

3) Mobile Internet has also been developed for wireless applications (without cable) by using your mobile phone. A protocol called WAP. Wireless Application Protocol WAP abbreviated. WAP works with text mode with a speed of 9.6 Kbps. In addition to WAP, also developed technology GPRS (General Packet Radio Service), GPRS promises speeds ranging from 56 kbps to 115 kbps.