SEJARAH JARINGAN KOMPUTER

Jaringan komputer adalah sebuah kumpulan komputer, printer dan peralatan lainnya yang terhubung dalam satu kesatuan. Informasi dan data bergerak melalui kabel-kabel atau tanpa kabel sehingga memungkinkan pengguna jaringan komputer dapat saling bertukar dokumen dan data, mencetak pada printer yang sama dan bersama-sama menggunakan hardware/software yang terhubung dengan jaringan.
Konsep jaringan komputer lahir pada tahun 1940-an di Amerika dari sebuah proyek pengembangan komputer MODEL I di laboratorium Bell dan group riset Harvard University yang dipimpin profesor H. Aiken. Pada awal mulanya adanya jaringan tersebut hanyalah ingin memanfaatkan sebuah perangkat komputer yang harus dipakai bersama. Untuk mengerjakan beberapa proses tanpa banyak membuang waktu kosong dibuatlah proses beruntun, sehingga beberapa program bisa dijalankan dalam sebuah komputer dengan dengan kaidah antrian.
Ditahun 1950-an ketika jenis komputer mulai membesar sampai terciptanya super komputer, maka sebuah komputer mesti melayani beberapa terminal untuk itu ditemukan konsep distribusi proses berdasarkan waktu yang dikenal dengan nama TSS (Time Sharing System), maka untuk pertama kali bentuk jaringan (network) komputer diaplikasikan. Pada sistem TSS beberapa terminal terhubung secara seri ke sebuah host komputer. Dalam proses TSS mulai nampak perpaduan teknologi komputer dan teknologi telekomunikasi yang pada awalnya berkembang sendiri-sendiri.Memasuki tahun 1970-an, setelah beban pekerjaan bertambah banyak dan harga perangkat komputer besar mulai terasa sangat mahal, maka mulailah digunakan konsep proses distribusi (Distributed Processing). Dalam proses ini beberapa host komputer mengerjakan sebuah pekerjaan besar secara paralel untuk melayani beberapa terminal yang tersambung secara seri disetiap host komputer. Dalam proses distribusi sudah mutlak diperlukan perpaduan yang mendalam antara teknologi komputer dan telekomunikasi, karena selain proses yang harus didistribusikan, semua host komputer wajib melayani terminal-terminalnya dalam satu perintah dari komputer pusat.
JENIS JARINGAN KOMPUTER
Secara umum jaringan komputer dibagi atas lima jenis, yaitu;
1. Local Area Network (LAN)
Local Area Network (LAN), adalah suatu jaringan milik pribadi di dalam sebuah perkantoran atau kampus yang berukuran sampai beberapa kilometer. LAN seringkali digunakan untuk menghubungkan komputer-komputer pribadi dan workstation dalam kantor suatu perusahaan atau perusahaan-perusahaan untuk memakai bersama sumberdaya (misalnya printer) dan saling bertukar informasi.

2. Metropolitan Area Network (MAN)
Metropolitan Area Network (MAN), adalah suatu jenis jarringan versi LAN yang berukuran lebih besar dan biasanya menggunakan teknologi yang sama dengan LAN. MAN dapat mencakup kantor-kantor perusahaan yang letaknya berdekatan atau juga sebuah kota dan dapat dimanfaatkan untuk keperluan pribadi (swasta) atau umum. l.

3. Wide Area Network (WAN)
Wide Area Network (WAN) adalah suatu jaringan yang jangkauannya mencakup daerah geografis yang luas, dan seringkali mencakup sebuah negara bahkan benua.

4. Internet
Sebenarnya terdapat banyak jaringan didunia ini, seringkali menggunakan perangkat keras dan perangkat lunak yang berbeda-beda. Orang yang terhubung ke jaringan sering berharap untuk bisa berkomunikasi dengan orang lain yang terhubung ke jaringan lainnya. Keinginan seperti ini memerlukan hubungan antar jaringan yang seringkali tidak kampatibel dan berbeda. Biasanya untuk melakukan hal ini diperlukan sebuah mesin yang disebut gateway guna melakukan hubungan dan melaksanakan terjemahan yang diperlukan, baik perangkat keras maupun perangkat lunaknya. Kumpulan jaringan yang terinterkoneksi inilah yang disebut dengan internet.

5. Jaringan Tanpa Kabel
Jaringan tanpa kabel adalah suatu solusi terhadap komunikasi yang tidak bisa dilakukan dengan jaringan yang menggunakan kabel. Misalnya orang yang ingin mendapat informasi atau melakukan komunikasi walaupun sedang berada diatas mobil atau pesawat terbang, maka mutlak jaringan tanpa kabel diperlukan karena koneksi kabel tidaklah mungkin dibuat di dalam mobil atau pesawat. Saat ini jaringan tanpa kabel sudah marak digunakan dengan memanfaatkan jasa satelit.

INDONESIA READY AT CUP AFF SUZUKI

When does this indonesia team in pursuance of several matches in cup AFF Suzuki that consist of several countries that is Indonesia, Singapore, Myanmar, Komboja, Laos, Malaysia, Fhilipina, Thailand and Vietnam. From to eight countries divided to be two groups that is group a that consist of Indonesia, Singapore, Myanmar and Kamboja. while for group b consist of Thailand, Fhilipina, Laos and Vietnam. In indonesia team the first match that is trained by Benny Dollo win on Myanmar with score three for Indonesia and empty for Myanmar. From all goals printed by Budi sudarsono, Bambang Pamungkas and Firman Utina. While in second match Indonesia wins again on Kamboja with score four for Indonesia and empty for Kamboja in match Budi Sudarsono print three goals to Kamboja goal and one goal is printed by Bambang Pamungkas. From result twice will win in twice indonesia team matches will compete to semifinal in cup AFF Suzuki will oppose Singapura.

PERSIB READY AT COPA INDONESIA

Persib Bandung in preparation faces second rotation Super League and Copa Indonesia will hold practice with that be done at Pangandaran beach located in regency Ciamis. Besides also Persib Bandung before do match in Super League and Copa Indonesia will do friendship match with Persiku Kuningan. practice having taken ste and will do friendship match Persib Bandung also will do evaluation towards all players. In this player evaluation is management Persib Bandung will give instruction towards the player less will give contribution towards team Maung Bandung. In team evaluation plan Persib Bandung more many will give evaluation towards Fabio Lopes Alcantara foreign player Persib Bandung this in Indonesia Super League first round less many will give contribution good enough for team Maung Bandung and also contract value Fabio Lofes higher at equal with origin foreign player Brazil that play at Persib Bandung this. For plan in Copa Indonesia Persib Bandung sure will turn on maximal target in all match that be carried out at copa Indonesia because team Persib Bandung will want to give champion degree for society Bandung.

MYANMAR VS INDONESIA

Will live a step again Indonesia will reaches tournament champion crown Grand Royal Challenge 2008 that carried out at Myanmar. Indonesian ascertained to play at finals with Myanmar host at stadium Thuwanna YTC, Yangon on friday tommorow. in also ever lose from Myanmar with score two for Myanmar and one for Indonesian. In match only perfoming a large part player that sit at reservist chair with young player that has Indonesian. as well as in match indonesia must fiddle around with ten players because m. robby indonesia stopper is given red card by referee that leads match. indonesia instructor Benny Dollo will ascertain will display skuad best for Indonesian team except M. Robby not yet can play because be hitted red card. in forward Bambang Pamungkas be principal choice and Aliyudin with Tallaohu Abdul Musafry by turns to will play at position in front of as friend Bambamg Pamungkas. while on course middle Indonesia there two players that is Ponaryo Astaman and Firman Utina and on course Indonesian wing there Arif suyono and Elie Aiboy. temporary captain Charis Yulianto return to be player at hind position to supervises movement from Myanmar striker that is Soe Myat Min.

PSM MAKASAR VS PERSIB BANDUNG

Persib bandung almost reaches victory on psm makasar in Indonesia Super League first round latest party that competes at stadium Mattoangin city Makasar on saturday . Team Maung bandung first of all superior one on PSM Makasar but seven minutes approach team end match psm makasar success makes goal to goal Persib Bandung with change score is one same. goal from team Persib Bandung produced to pass hard kick from Lorenzo Cabanas from outside penalty box in minute seventy three. Foreign player left foot kick Persib Bandung origin Paraguay this aims to right goal from PSM Makasar that watched over by Samsidar. Then goal that produced by player PSM Makasar created to pass foot kick from Ahmad Amirudin that given bait from foot Claudio Pronetto. with this result is Persib Bandung ends first round rotation in Indonesia Super League with value thirty one and permanent in position fifth then PSM Makasar climb sequence ten with twenty four shifted position from team Pelita Jaya. Instructor persib Jaya Hartono admit glad with this result and enough satisfied with match quality that at stadium Mattoangin city Makasar this. But team PSM Makasar that trained by Raja Isa admits dissapointed with result got by the players because with play in city self only get one point.

PERSIB BANDUNG VS PERSITA TANGGERANG

In will fight match will oppose Persita Tanggerang that will compete on saturday this will be to chance big for team Persib Pandung to repair position temporary in this Indonesian Super League. So in that match Persib Bandung must turn on target to win in match that be carried out at this stadium Jalak Harupat .In match faces Persita Tanggerang this chance very big for persib bandung and all at once to repair position in Indonesia Super League. Because Persib Bandung if seen from position and player quality far better than Persita Tanggerang now is presenting on course under this Indonesian Super League.But in this match Persib Bandung must anticipate resurrection from players Persita Tanggerang because players Persita Tanggerang will play to persist to oppose Persib Bandung this because players Persita Tanggerang this is sure want to repair position in Indonesian Super League now is residing in under. in this match Persib Bandung of course will demote players baiknya because persib bandung also will want to change position in Indonesian Super League now is presenting in sequence to eight.But in match Persib Bandung will not be braced by atep now stilling dispute effect of accident moment is driving motorcycle when go to practise to stadium Persib.

PERSIK KEDIRI VS PSMS MEDAN

At the time of Persik Kediri oppose PSMS Madan at beatten by Persik Kediri.But in match happen game stringent between second team.Even player PSMS Madan at the time of play there that hitted stroke from player Persik Kediri that done by Budi Sudarsono that in front of goal from team PSMS Medan.From player PSMS Medan that is hitted stroke by player Persik Kediri that is Erwin where does he play as back middle from team PSMS Medan.While that do licking towards Erwin that there two person done players Persik Kediri that is Cristian Gonzales and Budi Sudarsono even licking that done by Cristian Gonzales that reported to policeman at city Kediri by management PSMS Medan because licking that done by Cristian Gonzales that experience torn wound very serious in eye temple from that Erwin.At the time of licking that done by Cristian Gonzales that happen after match Persik Kediri oppose PSMS Medan that finished competes.From that event PSSI will give doubt law to that foreign player because make disreputable Indonesian League.When in match from police investigation really there is happen licking that done by foreign player from Persik Kediri that named Cristian Gonzales that there player possibility at scratch from Indonesian Super League player list and also PSSI direct will return player to country originally without may again play at Indonesian Super League.