Defintion of Computer Server

Have you ever heard the term of computer server? Maybe once and not infrequently you’re wondering about the definition, usability, and its parts. Indeed, what is a server computer? It is a computer with a particular service on a network. This computer is like a parent who store and manage information, and distribute to other computers in order to be used together.

This type of computer is used either in the Internet or in an intranet network. In general, this computer will operate for 24 hours without stopping in order to provide

Read More

Information Technology and Development of its Numerous Aspects

Info technology provides background knowledge concerning major info technology parts : hardware and software, networks and information. these days nearly all sorts of organizations are increasingly dependent on info technologies for achieving their strategic and operational objectives. in the past decade, enterprise systems are broader offer secure, electronic connection with vendors and buyers, and the net has turned out to be a mainstream channel for communications and business transactions. Being a regular user of numerous laptop and communication devices, you are most likely already cognizant of a number of the innovations in laptop systems and networks who have been introduced with tinnitus vendors in the past few years. the extremely fast technological

Read More

The Definition of Harddisk

Hard disk is medium data storage on a computer that consists of a collection of magnetic hard disks and spinning, as well as other electronic components. Hard disks use a flat disc called the platter, which on both sides are coated with a material that is designed to be able to store information magnetically. Platter-platter by punching holes in the center are arranged and rearranged on a spindle. Platter spinning at very high speed which is controlled by the spindle motor that is

Read More

Computer Security

Until this time, millions of people use the computers either at home, school, workplace, or even in casual places, by using a computer-based personal computer-based, network, or the Internet. Information technology and growing has many advantages in human life, yet behind it is also a lot of negative aspects of the case such as computer crime, which includes theft, fraud, extortion, and many others. For the security of computer and information systems used to be guaranteed.

EMERGENCE OF COMPUTER CRIME
Causes of Increased Computer Crime

• Business applications that use information technology and computer networks has increased
• Server decentralized and distributed system cause many to be handled by professional people.
• The transition from single-to multi-vendor vendor so it needs a lot of adjustments.
• Increased capability in the field of computer user that started

Read More

Algorithm

In mathematics and computing, the algorithm is a set of commands to solve a problem. These commands can be translated in stages from beginning to the end. These problems can be anything, with records for every problem, there are criteria for initial conditions that must be met before running the algorithm. The algorithm will be able to always end for all initial conditions that meet the criteria, in this case different from the heuristic. Algorithms often have steps repetition (iteration) or require decisions (Boolean logic and comparison) until the task is completed.

Design and analysis of algorithms is a special branch of computer science that studies the characteristics and performance of the algorithm in solving the problem, regardless of the algorithm implementation. In this branch of the discipline learned in the abstract algorithm, regardless of the

Read More

Computer Data Processing System

Number system is a way to represent the magnitude of a physical item. Number system uses a base number or base (base / radix) that tertenntu.

Understanding numbers:
Numbers are the physical representation of the observed data. Numbers can be represented in various forms, which are then classified in a number system, but have the same meaning.

To demonstrate a type number, typically a number that will be represented in a number of conversion followed behind with a code that describes the type of number, shape

Read More

Sejarah sistem operasi

Sistem operasi telah berkembang selama bertahun-tahun. Pada bagian berikut kitaakan secara singkat melihat beberapa highlights. Karena sistem operasi secara historistelah erat dikaitkan dengan arsitektur komputer di mana mereka berjalan, kita akanmelihat generasi-generasi komputer untuk melihat apa yang mereka adalah sepertisistem operasi. Pemetaan ini adalah sebuah komputer yang beroperasi generasisistem kasar, tetapi itu menyediakan struktur yang ada tidak.

Komputer digital sejati pertama dirancang oleh matematikawan Inggris CharlesBabbage (1792-1871). Meskipun Babbage menghabiskan sebagian besar hidupnyadan

Fortune berusaha membangun "mesin analitis." Dia tidak pernah mendapatkannyabekerja sebagaimana mestinya karena mekanis murni, dan teknologi zamannya tidakbisa menghasilkan diperlukan roda, gigi, dan gigi presisi tinggi yang dia butuhkan.Tak perlu dikatakan, mesin analisis telah ada sistem operasi.

Generasi pertama (1945-55) Vacuum Tube dan plugboards

Setelah berhasil Babbage usaha, sedikit kemajuan dalam mengembangkan komputerdigital hingga Perang Dunia II. Di sekitar pertengahan 1940-an, Howard Aiken diHarvard, John von Neumann di Institut studi lanjutan di Princeton, J. Presper Eckertdan William Mauchley di University of Pennsylvania, dan Konrad Zuse di Jerman,antara lain, semua berhasil membangun mesin hitung. Relay mekanis pertama yangdigunakan tapi sangat lambat, dengan waktu siklus diukur dalam menit. Relay yangkemudian digantikan oleh tabung vakum. Mesin ini sangat besar, mengisi seluruhkamar dengan puluhan ribu tabung vakum, tetapi mereka masih satu juta kali lebih lambat daripada komputer pribadi termurah yang tersedia saat ini.

Di jaman ini awal, kelompok orang-orang yang dirancang, dibangun, diprogram,dioperasikan dan dikelola setiap mesin. Semua program ini dilakukan dalam bahasamesin mutlak, sering dengan kabel sampai plugboards untuk mengendalikan fungsidasar dari mesin. Bahasa pemrograman yang tidak diketahui (bahkan Majelis bahasatidak diketahui). Sistem operasi yang terdengar. Yang biasanya terbuat dari operasi iniuntuk programmer untuk mendaftar untuk blok waktu pada lembar pendaftaran didinding, dan datang ke kamar mesin, masukkan plugboard nya ke komputer, danmenghabiskan beberapa jam berikutnya berharap bahwa tak satu pun dari tabungvakum 20.000 atau akan membakar keluar selama menjalankan. Hampir semuamasalah langsung perhitungan numerik, seperti penggilingan keluar tabel sinus,cosinus, dan Logaritma.

Di awal 1950an, rutin telah meningkat sedikit dengan pengenalan kartu meninju.Sekarang mungkin untuk menulis program pada kartu dan membacanya di daripadamenggunakan plugboards; Jika tidak, prosedur adalah sama.

Read More