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The most important program that is run on a computer. Every general-purpose computer must have an operating system to run other programs. The implementation of the operating system recognizes input from the keyboard, such as the basic task of sending the output to the screen display, recorded in the files and directories on the disk track, and control such as disk drives and printer peripherals.
Network operating system abbreviated as NOS, operating system, including connecting to a local area network equipment, computers and special features. Some operating system, such as UNIX and the Mac operating system, has been networking the term network operating system-inch built-in feature, however, is generally reserved for software, network capabilities by adding the basic operating system. Novell's Netware, Artisoft's LANtastic, Microsoft windows Server and Windows NT is an example of an network operating system.
The program or programs designed for end-users group. Software can be divided into two categories: system software and application software. From low-level system software programs, interact with the computer a very basic level. This includes the operating system, compiler, used to manage computer resources and utilities.
Computer system refers to the computer and its devices. Equipment such as speakers, printers, keyboards, scanners and other peripheral devices are called, sometimes referred to as "peripherals. " Central processing unit (CPU) is considered to be "computer. " If no external device input and output of the computer (home computer) (such as monitors, printers, speakers, etc.) will not be able to do anything you feel useful.Read phonetically
Define Question 1
Operating system is a software program and computer interface as user behaviour. This is a software package that allows the computer is functions. Operating system also the most important programs into the computer. Basic operating system running on the computer and allows other programs to run well. Operating system to complete all need to do a computer, such as recognized from the mouse or keyboard input, the basic things. It retains all of the documents which track on the computer. Allocation of resources to running, it can prevent unauthorized access to computer programs.
A network operating system (NOS) is a computer operating system's main purpose is to support workstations, personal computers, and in some cases, the old pier is a local area network (LAN) connection. In addition, some multi-purpose operating system such as Windows NT and Digital's OpenVMS, and out of capacity, so that they can describe as a network operating system. Network operating system provides printer sharing, common file system and database sharing, application sharing, and to manage the network name of the directory, security and other internal networks.
An application software are designed to perform specific functions, directly to the user or in some cases, another application, any plans. Application uses the computer's operating system and other services supporting the project. Services and with the programmers writing application is called application program interface (API) to use other means of communication formal request procedure.
Answer Question 1
Operating system to create a link between users and applications forms the core of the computer system. It is not in favor of the programs and hardware to simplify resource management. Let us look at different types of operating systems.
Multi-tasking and Single-tasking Operating Systems
When a program is allowed to run once, the system is divided into single-task operating system, and the operating system allows the case to perform multiple tasks at the same time, it is listed as a multitasking operating system. Multi-task can be divided into two categories, namely pre-emptive or cooperation. In the pre-emptive multitasking operating system and CPU time slice of a slot dedicated to each project. Class Unix operating systems such as Solaris and Linux support for pre-emptive multitasking. Cooperative multitasking is relying on each process, to allow time to define the way in the other processes. Prior to Microsoft Windows to Windows95 to support the cooperative multitasking.
As the Windows operating system, it will be the next version of Windows Vista's successor, the work of the name. Windows 7 is expected to be released in 2010. Windows 7 is expected to use less power more effective, not as a "resource pig" because more than Vista, and includes better synchronization with mobile devices and PC integration elements. Windows 7 is expected to include 32-bit and 64-bit versions and server versions, Windows Server 7.
Mac OS X
Mac OS X pronounced "Oh Apple - ES of ten," was in the Apple Macintosh computer using the current version of the operating system. If you happen to be pronounced "Mac OS X," computer fans, and dedicated to Mac users will quickly correct you. Although the name may be a bit confusing, Mac OS X is an advanced, user-friendly operating system.
Applications the ability to use the computer directly to the specific task. Application software can handle text, numbers and graphics. It can be in a certain software, such as word processing, spreadsheets, or playback of audio and video files form the focus of a single task.
Database is a collection of data structure. Rely on computer databases to organize data, allowing users of the database, database software, database operations to achieve. Database software allows users to store and retrieve data in the database.
In Excel, Lotus 1-2-3 and Apple figures are some examples of spreadsheet software. Spreadsheet software allows users to perform calculations. They simulate a display, so that more cells grid paper form.
They allow users to create and play audio and video media. They are able to play the media files. Audio converter, player, burner, video encoder and decoder is a form of multimedia software. Examples of this type of software, including Real Player and Media Player.
Simulation software is the best example of the scientific simulation and flight simulators. The plan is mainly used for research and entertainment. Simulation is to create a human, vehicle and traffic accident environment, the computer model to calculate the forces in the discrete time interval for each agent process. By Newtonian physics, the vehicle position and velocity updates, and human and display graphics.
Computer animation software can plug the vehicle location, based on user input the coordinates and speed. The animation provides a similar event is a simulated graphical representation of a visual description, it is not an analytical tool.
Computer simulation is a complex event, because the analysis of human and vehicle movement in the simulation is a physical programmable valuable tool. Driver behaviour, vehicle characteristics, and road conditions, the parameters can be easily assessed.
Define Question 2
The computer is one of mankind's most brilliant invention. Computer technology, we can achieve efficient storage and data processing. We can employ other information storage capacity of computer memory of our brain. Because the computer, we have the ability to work up to the daily rate for important transactions, to achieve precision and accuracy of the output. On the computer a few years ago is a large room size, and must consume large amounts of electricity. However, as technology advances, computers have shrunk to the size of a small watch. Depending on the size of the processing power and computer, they have different types of classification. Let us look at the computer category.
Answer Question 2
Highly computationally intensive tasks can be carried out effectively by means of supercomputers. Quantum physics, mechanics, weather forecasting, molecular theory is the best studied by means of supercomputers. Their well-designed parallel processing and the ability of the memory hierarchy to give the super computer, large-scale transaction processing capabilities.
In size and processing capability, the minicomputer is between mainframe and PC. Minicomputer, also known as mid-range system or workstation. The term began to be generally 60 years in the 20th century to refer to the third generation of relatively small computers. They picked up it would be a refrigerator or two core technologies used in transistors and memory space required. 12-bit Digital Equipment Corporation PDP-8 minicomputer was the first successful minicomputer.
Similar operations, desktop computers, notebook computers and mobile use small design. Running on a single laptop battery or external adapter, charges the computer battery. They enabled with a built-in keyboard, touchpad as a mouse and LCD display. It's portability and ability to use the battery as a power advantage for mobile users.
The desktop to a single location. Parts of a desktop computer is easy to provide a relatively low cost. Power not as the key to the laptop. Desktop machine is widely used in the workplace and the family welcome for daily use.
It with a microprocessor and a computer central processing unit is called micro-computer. They do not occupy the space up to the mainframe. When using the keyboard and mouse, giving the micro-computer can be called personal computers. Monitor, keyboard and other similar input and output devices, in the form of computer memory and memory to power supplies packaged in a miniature computer. These computers can be installed in the desk or table, and as a single user tasks the best choice.
These are almost extinct today. These figures are from a different computer because the computer can run multiple analog mathematical operations simultaneously. It uses math continuous variables, and using mechanical or electrical energy.
A record in the computer evolution step is to create wearable computers. These computers can be worn on the body and often in the behavioral modeling and human health research to use. Military and health professionals in their daily wearable computers, as part of such a study. When the user's hand, the activities of the other senses, wearable computers is very helpful to track people's actions. Wearable computers in operation because they never been opened and closed, and continue to interact with the user.
Conclusion & Recommendation
In 2011 years, we can see the world have many place and build also using computer. Computer gives us a lot convenience, it can get us searching any for internet (e.g. movie, music, New, literature and knowledge) and the reason for sub-types of the computer because they want to meet the market demands.
Computer system are many types of computer, outsides the computer have hardware and insides the computer have software. And the software have type of operation System, application Software and other. But the software installer want to step by step, because you don't following the step well be broke the computer. So I think the computer is very interesting.