ALAT-ALAT JARINGAN INTERNET
Banyak sekali peralatan Jaringan komputer.
Untuk memberikan gambaran hanya yang penting saja dibahas pada kesempatan ini :
NIC
(Network Interface Card)
Kartu
jaringan atau Lan card dipasang pada setiap komputer yang akan dihubungkan ke
suatu jaringan
computer.
Banyak jenis dan merk kartu jaringan yang tersedia di pasar, namun beberapa hal
pokok yang perlu diketahui dari kartu jaringan yaitu type kartu ISA atau PCI
dengan kecepatan 10 atau 10/100 Mbps, harus disesuaikan dengan tipe Ethernet
HUB atau switching yang akan digunakan, jenis protocol dan jenis kabel yang
didukungnya disamping itu juga mengesampingkan kwalitas
produkKabel UTPAda beberapa jenis
kabel yang digunakan dalam jaringan network, namun yang paling banyak dipakai
pada private network/Local Area Network saat ini adalah kabel UTP.
Bridge
Bridge
digunakan untuk menghubungan antar jaringan yang mempunyai protokol yang sama.
Hasil akhirnya adalah jaringan logis tunggal. Bridge juga dapat digunakan
jaringan yang mempunyai media fisik yang berbeda. Contoh jaringan yang
menggunakan fiber obtik dengan jaringan yang menggunakan coacial.
Multiplexer
Multiplexer adalah suatu alat yang
memungkinkan pengiriman dan penerimaan bebrpa pesan secara serentak. Penambahan
multiplexer berdampak seperti mengubah jalan satu jalur menjadi jalur bebas
hambatan dengan beberapa jalur.
Modem
Satu-satunya
saat modem tidak diperlukan adalah saat telephone tombol digunakan sebagai
terminal. Semua saluran jaringan komputer lain memerlukan modem pada tiap
ujungnya. Modem dirancang untuk beroperasi pada kecepatan tertentu biasanya
300, 1200, 2400, 4800 atau 96000 bit per detik dan seterusnya kecepatan modem
menentukan kecepatan transmisi data.
ENGLISH
NIC (Network Interface Card)
Lan network card or cards are installed on each computer that will be connected to a computer network. Many types and brands of network cards are available in the market, but some basic things you need to know which type of network card ISA or PCI card with 10 or 10/100 Mbps speed, must be tailored to the type of Ethernet switching hub or to be used, the type of protocol and cable types it supports as it also ruled out quality
UTP cable products There are several types of cables used in the line network, but the most widely used in private network / Local Area Network today is UTP cable.
Lan network card or cards are installed on each computer that will be connected to a computer network. Many types and brands of network cards are available in the market, but some basic things you need to know which type of network card ISA or PCI card with 10 or 10/100 Mbps speed, must be tailored to the type of Ethernet switching hub or to be used, the type of protocol and cable types it supports as it also ruled out quality
UTP cable products There are several types of cables used in the line network, but the most widely used in private network / Local Area Network today is UTP cable.
bridge
Bridge used to link between networks that have the same protocol. The end result is a single logical network. Bridge can also be used networks that have different physical media. Tissue samples using a fiber network using obtik with coacial.
Bridge used to link between networks that have the same protocol. The end result is a single logical network. Bridge can also be used networks that have different physical media. Tissue samples using a fiber network using obtik with coacial.
Multiplexer is a device
that allows sending and receiving
messages simultaneously bebrpa. The addition of multiplexers impact such
as changing a single lane road into a freeway
with multiple lanes.
modem
The only time the modem is not required is when the telephone keypad is used as a terminal. All other computer network channel requires a modem at each end. Modem is designed to operate at a certain speed is usually 300, 1200, 2400, 4800 or 96,000 bits per second and so on modem speed determines the speed of data transmission.
The only time the modem is not required is when the telephone keypad is used as a terminal. All other computer network channel requires a modem at each end. Modem is designed to operate at a certain speed is usually 300, 1200, 2400, 4800 or 96,000 bits per second and so on modem speed determines the speed of data transmission.
Dial-up
Cara
kerja
|
Komputer
terhubung lewat modem ke saluran telepon, di mana modem mengubah sinyal
komputer menjadi suara untuk kemudian dikirim lewat saluran telepon ke server
internet.
|
Kecepatan
|
Maksimum
56 kbps
|
Keuntungan
|
Hampir
semua penyedia jasa internet menyediakan layanan ini.
Harga relatif lebih murah daripada layanan lainnya. Harga perangkat (modem) juga lebih murah dibandingkan layanan jenis lain. |
Kerugian
|
Lambat
(nomor 2 paling lambat setelah GPRS)
|
Sistem
pentarifan
|
Time
base
|
Wireless
Cara
kerja
|
Komputer
terhubung lewat gelombang radio dengan menggunakan interface WiFi.
Layanan ini biasa tersedia di kafe-kafe atau hotel. |
Kecepatan
|
Secara
teoritis, kecepatannya bisa mencapai 54Mbps, tapi kecepatan nyatanya
tergantung penyedia layanan ini.
|
Keuntungan
|
Tidak
ada kabel yang perlu dihubungkan ke komputer karena memang wireless.
Bisa "nge-net" di tempat-tempat yang nyaman seperti di kafe. |
Kerugian
|
Harga
relatif mahal.
Tidak tersedia untuk perumahan |
Sistem
pentarifan
|
Traffic
base & time base
|
CDMA
Cara
kerja
|
Komputer
terhubung lewat modem atau ponsel CDMA (via kabel data atau infrared)
|
Kecepatan
|
Secara
teoritis, kecepatan yang tersedia adalah 153.6kbps, tapi kecepatan nyatanya
juga tergantung penyedia layanan.
|
Keuntungan
|
Fleksibel,
bisa digunakan di mana saja dalam jaringan telepon CDMA yang digunakan
|
Kerugian
|
Koneksi
kurang stabil terutama kalau posisi kita agak jauh dari stasiun pemancar
(BTS) dari CDMA tersebut, dapat dilihat dari signal bar yang ditunjukkan oleh
ponsel.
|
Sistem
pentarifan
|
Traffic
base & time base
|
GPRS
Cara
kerja
|
Komputer
terhubung lewat modem atau ponsel GSM (via kabel data atau infrared)
|
Kecepatan
|
Secara
teoritis, kecepatan yang tersedia adalah 40kbps, tapi kecepatan nyatanya juga
tergantung penyedia layanan.
|
Keuntungan
|
Fleksibel,
bisa digunakan di mana saja dalam jaringan telepon GSM yang digunakan.
Lebih stabil jika dibandingkan CDMA. |
Kerugian
|
Kecepatan
paling rendah bahkan lebih rendah dari dial-up.
|
Sistem
pentarifan
|
Traffic
base
|
ENGLISH
Dial-up
The workings of computers connected via modem to the telephone line, in which a computer modem converts the signals into sound and then sent via telephone line to the internet server.
Maximum speed 56 kbps
Advantages Almost all internet service providers provide this service.
Prices are relatively cheaper than other services.
Price devices (modems) are also less expensive than other types of services.
Losses Slow (number 2 at the latest after GPRS)
Time base tariff system
Wireless
The workings of computers are connected via radio waves using a WiFi interface.
The service is usually available at cafes or hotels.
Speed Theoretically, the speed can reach 54Mbps, but in fact depends on the speed of this service provider.
Advantages No wires need to be connected to the computer because it's wireless.
Can "nge-net" in places like the cozy cafe.
Losses are relatively expensive price.
Not available for housing
Traffic & base tariff system time base
CDMA
The workings of computers connected via modem or CDMA mobile phone (via a data cable or infrared)
Speed Theoretically, the speed available is 153.6kbps, but in fact also depends on the speed of the service provider.
Advantages Flexible, can be used anywhere in a used CDMA phone network
Connection loss of less stable, especially if we position some distance from the transmitter station (BTS) of the CDMA, it can be seen from the signal bar displayed by phone.
Traffic & base tariff system time base
GPRS
The workings of computers connected via modem or GSM mobile phone (via a data cable or infrared)
Speed Theoretically, the available speed is 40kbps, but in fact also depends on the speed of the service provider.
Advantages Flexible, can be used anywhere within the GSM telephone network is used.
More stable when compared to CDMA.
Lowest speed loss is even lower than dial-up.
Traffic base tariff system
The workings of computers connected via modem to the telephone line, in which a computer modem converts the signals into sound and then sent via telephone line to the internet server.
Maximum speed 56 kbps
Advantages Almost all internet service providers provide this service.
Prices are relatively cheaper than other services.
Price devices (modems) are also less expensive than other types of services.
Losses Slow (number 2 at the latest after GPRS)
Time base tariff system
Wireless
The workings of computers are connected via radio waves using a WiFi interface.
The service is usually available at cafes or hotels.
Speed Theoretically, the speed can reach 54Mbps, but in fact depends on the speed of this service provider.
Advantages No wires need to be connected to the computer because it's wireless.
Can "nge-net" in places like the cozy cafe.
Losses are relatively expensive price.
Not available for housing
Traffic & base tariff system time base
CDMA
The workings of computers connected via modem or CDMA mobile phone (via a data cable or infrared)
Speed Theoretically, the speed available is 153.6kbps, but in fact also depends on the speed of the service provider.
Advantages Flexible, can be used anywhere in a used CDMA phone network
Connection loss of less stable, especially if we position some distance from the transmitter station (BTS) of the CDMA, it can be seen from the signal bar displayed by phone.
Traffic & base tariff system time base
GPRS
The workings of computers connected via modem or GSM mobile phone (via a data cable or infrared)
Speed Theoretically, the available speed is 40kbps, but in fact also depends on the speed of the service provider.
Advantages Flexible, can be used anywhere within the GSM telephone network is used.
More stable when compared to CDMA.
Lowest speed loss is even lower than dial-up.
Traffic base tariff system
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