Tuesday, June 4, 2019

Explain the Role of Computer Systems in Different Environments

Explain the Role of Computer Systems in Different EnvironmentsIn todays era, figurer has become iodin of the basic postulate for human beings. Computer which we apply alike(p) every day was invented for solely one purpose i.e. for calculating numerical problems and mathematical calculations. The term computing device is derived from Latin world called comput ar which means to calculate. With the advancement of technologies, computer has become one of the powerful machines ever created. in that location are different environments or surroundings where computers are used. For example, deal base communicate from one place to another place or from one country to another. Similarly, people stooge withdraw their money from the bank tied(p) living in another country.Some of the areas or surroundings in which computers are used are as followsScience and technologiesComputer has become one of major role in the in the science and technological area. Scientists can perform haphazard experiments like nuclear testing, radioactive experiments, space programmes and so on Similarly, they can keep their records of their experiments, journals etc that can be retrieve whenever they wanted. Also they can get information on various subjects like weather forecasting, earthquake, volcanic eruption etc.Medicine A computer scheme has played a major role in field of medicine. Now doctors can perform critical operations like heart surgery and others due to advancement of medical instruments. Similarly, in pharmaceuticals, people working in these areas can keep the records in computer like manufacture date, date of supplies, and expiry date of medicines.GovernmentOfficesBanksHome undertaking 2 explain the, unmanageableware, parcel and peripheral offices of a computer dodging.As give tongue to earlier, a computer is an electronic device. That means a computer consists of a wires, components that jocks to run a computer. basically, there are two parts or components that help to run a computer. They areHardware.Software.Parts of computerHardwareHardwareSoftwareHardwareA physical component that helps to run a computer is called hardware. Simply saying, any parts of a computer which we can see, feel and touch is called hardware. The examples of hardware are as followsKeyboardIt is also one of the input devices. It is used for entering textual data that consist of alphabets, numbers, special characters etc. The following are the different types of keyboard105 keys desktop keyboard85 keys laptop keyboardVirtual keyboardWi-Fi keyboard crawlIt is a pointing device used to position cursor on screen. It has 3 buttons. They areLeft buttonRight buttonScroll buttonThere are mainly two types of mouse. They are as followsScroll mouseIt has ball at its base that is use to roll over mouse pad.opthalmic mouseIt has LED base which emits light. This light is used to position cursor deflection. It does not require mouse pad.MotherboardIt is the main component of CPU cabinet that houses the complete electronic component inside a computer.hard discA hard disc is a physical component that is used for storing data. A hard drive can store millions of data permanently i.e. the data will be stored even if the power is off. push back RAM is known as stochastic Access Memory. It is also called volatile memory because it saves the data temporarily when the computer is on. When the computer is turned off, all the data that is stored or saved by RAM will be deleted.SoftwareSoftware is a set of instructions that helps to run the computer. Or a set of programs used as info systems is called software program. Basically there are two types of computer. They areSystem softwareSystem software deals with the internal functions of a computer. It loads when a computer starts and is used for interaction with the hardware. Example operating system, device drivers etc.Operating systemOperating system consists of programs that manage all operations of computer.The main tasks performed by operating systems are as followsBootingBooting is the do by of starting the computer and loading operating system with system files. The system files are followsCommand. ComConfig.sysAutoexec.batAfter checking the configurations of the systems and found ok operating system loads/ prepares desktop/laptop for user.SecurityA computer requires security data stored in inside it. To provide assets to appropriate user authentication process (username, password) is followed. If incorrect password is found, user is denied assets. Files are protected by taking password for each file.NetworkingThe computer files, programs, I/O devices etc. Can be shared by networking. Networking allows two or more than two computers to be connected to each other. Networking also allows sharing of interest connection for browsing web-pages.TaskOperating system executes different tasks. Each task means process. So, multiple processes are executed and each process request resources.Applic ation softwareThe software used for fulfilling the requirement of the user is called application software. It is used by computer user after computer finishes starting (booting). Example MS-Office, tally, games etc. Application software are created to fulfil the requirement of a computer user needs.Peripheral componentsThe parts of the computer that helps in running a computer is called peripheral component. These types of component generally found inside or outside of casing cabinet of a computer. We can also say that the components or devices that provide input to the computer or receive output are called peripheral components. Some of the examples are as followsPrinterMouseTouch screenMicrophoneVideo photographic cameraTask 3 compare different types of computer systems. Consider the todays mini world uses different types of computer for different purposes, your first task is to identify and enumerate different types of computer system based on working principles, size and brand . Then explain their available features, application areas and finally suggest which types of computer system would be suitable for above environments.As stated earlier, a computer is a powerful machine ever created by humans. A computer can complete its task within fraction of seconds. The higher the power, the time taken is less. A computer is generally divided into four types on its basisOn the basis of operations or work.On the basis of size.On the basis brand.On the basis of function.On the basis of operations or workOn the basis on performing an operation or doing a work, computer has been categorised into three types. They are as followsAnalog computersThese types of computers works in go along ranges of values. The results given by these computers are approximate since they work continously in their related fields. It generally deals with the physical quantities like speed, pressure etc. The examples of analog computer are speedometer, sthethescope,barometer etc.Digital com putersThese type computers are usec in binary digits i.e. 0 and 1. It is genrally used as on and off operators. The results given by the digital computers are correct and are more reliable than analog computers. They are used in performing complex mathematical probles and engineering.Hybrid computersHybrid computers are combine form of both analog and digital computers, hybrid computers

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