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.