Sistem Operasi Komputer

Sistem operasi Komputer adalah perangkat lunak komputer atau software yang bertugas untuk melakukan kontrol dan manajemen perangkat keras dan juga operasi-operasi dasar sistem, termasuk menjalankan software aplikasi seperti program-program pengolah data yang bisa digunakan untuk mempermudah kegiatan manusia Sistem Operasi dalam bahasa Inggrisnya disebut Operating System, atau biasa di singkat dengan OS.

Sistem Operasi komputer merupakan software pada lapisan pertama yang diletakkan pada memori komputer, (memori komputer dalam hal ini ada Hardisk, bukan memory ram) pada saat komputer dinyalakan. Sedangkan software-software lainnya dijalankan setelah Sistem Operasi Komputer berjalan, dan Sistem Operasi akan melakukan layanan inti umum untuk software-software itu. Layanan inti umum tersebut seperti akses ke disk, manajemen memori, skeduling task, dan antar-muka user. Sehingga masing-masing software tidak perlu lagi melakukan tugas-tugas inti umum tersebut, karena dapat dilayani dan dilakukan oleh Sistem Operasi. Bagian kode yang melakukan tugas-tugas inti dan umum tersebut dinamakan dengan kernel suatu Sistem Operasi.

Profil Fransesco Totti

                                                                            


    Francesco Totti (born in Rome, Italy, 27 September 1976, age 34 years) is an Italian football player who is currently defending team AS Roma. Plays the body 180 cm. Currently has resigned from the Italian national team. But did not rule out returning to the Italian national team coach when the national team called him. Married to Ilary Blasi, and have been blessed with two children named Cristian and Chanel.

    Totti had a golden shoe on the 2006/2007 season, scoring 26 goals in Serie A. Totti is the second Italian player Luca Toni who get it after the previous season. Totti made ​​his debut with Rome in 1993 and currently earn 5.8 million euros per season.

Profil juan

 

Name                     : Juan
Full name                : Juan Silveira dos Santos
Age                        : 32
Birthdate                 : 01/02/1979
Birthplace               : Rio de Janeiro, Brazil
Nationality              :  Brazil
Second nationality   : Unknown
Height                     : 180 cm
Weight                     : 72 kg
International caps     : Full international caps
Official homepage    : Unknown
Current club             : AS Roma
Role                        : Player
Playing position        : Central defender
Secondary playing position   :  Unknown
Squad number         : 4

Profil Maarten Stekelenburg

Full Name              : Maarten Stekelenburg
Place of Birth         : Haarlem, The Netherlands
Date of Birth          : 22 September 1982
Nationality             : Netherlands
Position                 : Goalkeeper
Playing at the Club : AS Roma

Maarten Stekelenburg is a professional football player who came from Holland. He was born on September 22, 1982 in Haarlem, The Netherlands. Today he is one of the retainer from the club and play AS Roma goalkeeper position. Besides, he also included the Dutch national team players in the squad.