INTERNET HARDWARE

INTERNET HARDWARE

1. Computer
Computers are a major component to be able to access the internet. Computer specifications used in the Internet connection is fast or slow performance to determine Internet access. the higher the specification of a computer, the faster the performance of Internet access, and vice versa.
Minimum specifications of a computer in internet access among others as follows: Processor, RAM (Random Access Memory), hard drive, VGA card, and the Monitor.

2. Modem (Modulator Demodulator)
Modem is a tool to convert digital computer signals into analog signals and vice versa. Computers that connect to the internet connected to telephone lines via modems. Based on the modem functions are divided into two types. Among others:

Dial Up Modem
Dial Up Modem commonly used by the Personal Computer (PC) is directly connected via phone lines. Type of dial-up modem there are 2 kinds, namely:

1) Internal Modem
Modem is installed in the computer, especially in expansion slots are available in computer  ainboard. Average speed internal modem for the download is 56 Kbps.
Advantages of using an internal modem as follows.
a) More efficient place and a more economical price
b) Does not require an adapter so impressed there is a lot more concise without wires.
The weakness of the internal modem as follows:
a) This modem does not require an indicator light so it is difficult to monitor modem status
b) The modem is not using its own voltage source so that
c) requires power from the power supply. This resulted in temperature increases the heat in the CPU box.

2) External Modem
External modem is a modem that is located outside the computer CPU. External modem connected to a computer via com port or USB. Installation of this modem is to connect the modem to the power and connect again to the adapter and then plugged back into power.

Gain an external modem:
a) Portability is well enough to be moved around for 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 the internal modem.
b) takes place or a separate location to put the modem.




Cable Modem
Cable Modem (Cable Modem), is the hardware that connects your PC with a cable TV connection. This cable TV network can be used for connection to the Internet at speeds higher than dialup modem or ADSL modem, cable modem speed maximum of 27Mbps downstream (to the user's download speed) and 2.5 Mbps upstream (upload speed of the user). Before you can connect to the Internet, so users are required to register with cable TV service providers and ISPs (Internet Service Provider).

Modem ADSL (asymmetric digital subscriber line
ADSL or Asymmetric Digital Subscriber Line is a form of DSL technology. Characteristic of ADSL is its asymmetric, namely that the data transferred in a different speed from one side to another. The main idea adalh ADSL technology to break down the telephone line signal into two parts for voice and data. It allows users to melakuakn or receive a phone call and make an Internet connection simultaneously without disturbing each other.

3. Phone Line
Phone lines is also an important and hardware needed to connect computers to the Internet. Use of this telephone sauran also followed by the use of modemdial ups. In addition to phone lines, to make Internet access can also be done by using cable TV. To be able to access the Internet using cable TV network, the modem used is a cable modem.

INTERNET ACCESS HARDWARE SUPPORT
In addition to the above three main device (computer, modem, phone lines), there are also some hardware supporting Internet access. Among others:
Hub / Switch
Hub is a hardware that is used to combine multiple computers.
Repeater
Repeater is a device used to receive the signal and retransmits that signal with the same power with the original signal, the repeater simply serves to strengthen the signal to be sent the same signal with the original signal.
Brige
Berige is software connecting two physical networks using the same protocol / similar. With the bridge a data packet can be sent from one LAN to another LAN.
Router
Router is a device that serves nearly equal to the bridge. However, these devices have advantages in addition to connecting two LANs of the same type, the router can also be for menghubungkjan two LANs with different types.