File Name: computer hardware and software maintenance notes .zip
Hardware refers to the physical elements of a computer. This is also sometime called the machinery or the equipment of the computer. Examples of hardware in a computer are the keyboard, the monitor, the mouse and the central processing unit. However, most of a computer's hardware cannot be seen; in other words, it is not an external element of the computer, but rather an internal one, surrounded by the computer's casing tower. A computer's hardware is comprised of many different parts, but perhaps the most important of these is the motherboard. The motherboard is made up of even more parts that power and control the computer. In contrast to software, hardware is a physical entity.
Software maintenance is widely accepted part of SDLC now a days. It stands for all the modifications and updations done after the delivery of software product. There are number of reasons, why modifications are required, some of them are briefly mentioned below:. Market Conditions - Policies, which changes over the time, such as taxation and newly introduced constraints like, how to maintain bookkeeping, may trigger need for modification. Client Requirements - Over the time, customer may ask for new features or functions in the software. Organization Changes - If there is any business level change at client end, such as reduction of organization strength, acquiring another company, organization venturing into new business, need to modify in the original software may arise.
Save Digg Del. In this sample chapter from IT Essentials Companion Guide v7 for Cisco Networking Academy, you will learn about the many benefits of conducting preventive maintenance for both hardware and software. IT Essentials Companion Guide v7. Preventive maintenance can be the key to keeping computer systems from experiencing serious problems, such as data loss and hardware failures, and it also helps systems have a longer life span. In this section, you study the need for preventive maintenance of a computer system. Following a good preventive maintenance plan can keep computer problems from being too troublesome.
Maintenance services include both hardware maintenance and support services, and network software maintenance and support services. Hardware maintenance and support services are preventive and remedial services that physically repair or optimize hardware, including contract maintenance and per-incident repair. Hardware support also includes online and telephone technical troubleshooting and assistance for setup, and all fee-based hardware warranty upgrades.
When emailing, please remember to follow proper email etiquette, as well as utilize your college email account vs. Presents a practical view of computer hardware and client operating systems. Covers computer hardware components; troubleshooting, repair, and maintenance; operating system interfaces and management tools; networking components; computer security; and operational procedures.
Preview the PDF. It is never too late to start learning and it would be a shame to miss an opportunity to learn a tutorial or course that can be so useful as Basic Computer Maintenance especially when it is free! You do not have to register for expensive classes and travel from one part of town to another to take classes. All you need to do is download the course and open the PDF file. This specific program is classified in the Computer architecture category where you can find some other similar courses.
Она в столовой. Консьерж снова покачал головой: - Ресторан закрылся полчаса. Полагаю, Росио и ее гость ушли на вечернюю прогулку. Если вы оставите для нее записку, она получит ее прямо с утра.
А потом медленно скрылась из виду в клубах пара. - Отчаянный парень, - пробормотал Хейл себе под нос. Он знал, что задумал Чатрукьян.
Должен быть какой-то другой выход. - Решайте! - крикнул Хейл и потащил Сьюзан к лестнице. Стратмор его не слушал. Если спасение Сьюзан равнозначно крушению его планов, то так тому и быть: потерять ее значило потерять все, а такую цену он отказывался платить. Хейл заломил руку Сьюзан за спину, и голова ее наклонилась.
Убийство азиата сегодня утром. В парке. Это было убийство - Ermordung.
Однако она отлично знала, чем занимался Хейл.
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