pc maintenance and repair pdf Sunday, May 16, 2021 2:08:16 PM

Pc Maintenance And Repair Pdf

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Computer maintenance is the practice of keeping computers in a good state of repair.

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To browse Academia. Skip to main content. By using our site, you agree to our collection of information through the use of cookies. To learn more, view our Privacy Policy. Log In Sign Up. Download Free PDF. Irvin Josue. Download PDF. A short summary of this paper. Examples of Hardware are following: Input devices: keyboard, mouse etc.

Output divices: printer, monitor, speaker etc. The computer case Power Supply. It supplies DC overhea ng of the various electronic of the computer v o l t a g e s f o r i n t e r n a l c o m p u t e r components components and has a fan to keep the computer cool. Hard Disk, Flash Disk etc. Port: Is a connector on the motherboard or on a separate adapter that allows a device to connect to a computer; these may include keyboard, mouse, serial, parallel, network, sound, or video ports.

D-Shell Connector Serial Port. TRS p, ring and sleeve ports Also known as ports for mini-jacks or audio jacks. D-Shell Connector. Game Port. Serial Port. A Program is a sequence of instruc ons wri]en to solve a par cular problem. Opera ng System, Compilers, Interpreter, Assemblers etc. Allow a computer to perform tasks that are not part of the opera ng system, but are s ll prac cal and useful. Both of them must work together to make a computer produce a useful output.

Software cannot be utilized without supporting hardware. Hardware without set of programs to operate upon cannot be utilized and is useless. To get a particular job done on the computer, relevant software should be loaded into the hardware.

A device driver is a program that controls a par cular type of device that is a]ached to your computer. When you buy an opera ng system, many device drivers are built into the product. Hardware is a one-time expense. Different software applications can be loaded on a hardware to run different jobs. A software acts as an interface between the user and the hardware. If Hardware is the 'heart' of a computer system, then Software is its 'soul'. Both are complimentary to each other. Or the screen blank?

These faults are probably also due to hardware problems. This is a code that can be used to dis nguish some hardware problems. These can be due to hardware or soTware problems. Take careful note of all informa on given in the error code. These error codes are probably due to soTware problems. If so, these are likely culprits. This could be a cause of soTware problems. The Device Manager will list all of the hardware devices installed on a PC.

Any device with a problem will have a warning symbol next to it, and double clicking on that device would give d e t a i l s a n d s u g g e s t e d remedies for the problem. Some possible. This op on will check the applica ons may fail outright if the Hard disk for errors. Some mes this is desirable, some mes not. Either way, this prac ce may slow your computer down to various degrees, and with the program running all the me, may slow down the performance of your computer.

Note: Please use cau on when uninstalling socware. These cyber-threats can cause huge dilemmas to your computer. Note: Modern computers have safeguards that shut down the system if a component is overhea ng. The performance will be slow. This problem is most likely if the computer is rather old and has had a newer and more memory demanding opera ng system installed.

It will reduce the performance of the computer. Check to be sure if the computer is plugged in to an AC outlet properly. It ensures that all of the system's hardware is working properly before trying to load the opera ng system. If the computer does not pass POST, it will not boot. Tip: Make sure the computer turns on. If nothing happens no lights, no sound, no fans, etc.

Check to see that all of the cards are fully pressed down into the bus connec ons, that any socketed chips are fully pressed into their sockets, and that all cable connec ons are fully a]ached.

Make sure that the drive cables are a]ached correctly. Dust can cause overhea ng problems and electrical shorts. Some mes, insects will nest inside the case as well. All of this needs to be cleaned out before you close up the case. Take precau ons to avoid inhaling excess dust, and consider using protec ve eyeware if necessary.

Some mes the hard disk will become corrupted by a user, or by a virus. Look for recent changes in your system's opera on. You may need to run an uninstaller program to remedy socware-related problems. The computer is unable to start up — If the computer does not turn on when you press the power bu]on, the following sugges ons may help you to determine why the computer will not start up.

A surge protector can be used in this case, because voltage surges can be very damaging to computers and other electrical components. Then put on the system to perform a POST. Make sure that it is connected to a power source, and also that the VGA cable is connected to the computer. The computer screen is blank If the screen is blank, the computer may not be set to display the image on the computer screen. Fixing the power outlet in such cases should help solve the issue. Computer Hardware Repairs and 53 Maintenance You can perform this ac on whilst you get a Blue screen error or sudden system crashes.

NOTE: Backup service is an assurance that your data is safe. Trouble with video card — If the power light of the computer and monitor is on and nothing comes up on the screen when you start your computer then there must be something wrong with video card. Change its video or the graphics card with a new one.

Most of the mes, this should help you get rid of the problem. The computer is on but not responding — the computer is on but not responding to socware or keyboard commands, then it must be frozen or halted.

An external device is not working — If an external device does not func on as expected. The power supply failure is a common problem in our country. RAM can fail or can loose from its housing and need to be reseated. If a computer needs new or addi onal RAM, it is important to make sure that the RAM used is compa ble with the computer system. RAM is very easily damaged by electrosta c charges, so it is very important for the user to be grounded before picking up RAM.

Also RAM should only be handled by the edges. Peripheral hardware such as printers, scanners will last longer if proper care about heat, dust and power surge control is taking to considera on. Com and. Avoid switching of the power directly from the main switch. If not maintained, however, the ba]ery will require charging more frequently. Use the ba]ery as your power source un l the low ba]ery warning emerges.

Using your laptop with the AC adapter plugged into an electrical outlet will overcharge the ba]ery. Overcharging decreases the life of the ba]ery. Eventually the ba]ery will be unable to hold a charge and will require a replacement. Discharge the ba]ery — use the ba]ery un l the low ba]ery warning emerges. Charge the ba]ery — use the AC adapter un l the ba]ery is fully charged. Then immediately disconnect the AC adapter from the notebook.

Computer Hardware Repairs and 68 Maintenance.


Practical exercise will involve opening up coupling a personal computer. The next page that pops up is asking you where you want to save the installation file. Click Performance and Maintenance, and then click overlay pdf map on google earth System. View and Download HP Computer troubleshooting and maintenance manual online. Effective troubleshooting for maintenance starts with eliminating ambiguity and short-term solutions. Schneider, W.

HP Pavilion DV6-6090 Maintenance And Service Manual

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Examples of Hardware are following: Input devices: keyboard, mouse etc. Output divices: printer, monitor, speaker etc. The computer case Power Supply.

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PC Maintenance Lecture Notes

Acts of conscience have overturned governments and toppled empires-even in your time. Yet you do not sit in the lap of the reds, then further tranquilized him. So, he was healed, considering the books you can buy these days.

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Мидж появилась в дверях со свежей распечаткой в руке. - Директор, Стратмору не удается отключить ТРАНСТЕКСТ. - Что?! - хором вскричали Бринкерхофф и Фонтейн. - Он пытался, сэр! - Мидж помахала листком бумаги.  - Уже четыре раза. ТРАНСТЕКСТ заклинило.

Сьюзан опасливо огляделась. Если до этого Хейл не знал, что они идут, то теперь отлично это понял. Стратмор нажал несколько кнопок и, прочитав полученное сообщение, тихо застонал. Из Испании опять пришли плохие новости - не от Дэвида Беккера, а от других, которых он послал в Севилью. В трех тысячах миль от Вашингтона мини-автобус мобильного наблюдения мчался по пустым улицам Севильи.

Сьюзан ощутила угрызения совести. - Я тоже хватила через край. Извините. Дэвид - это отличная кандидатура. Стратмор отрешенно кивнул: - Он вернется сегодня вечером. Сьюзан представила себе, что пришлось пережить коммандеру, - весь этот груз бесконечного ожидания, бесконечные часы, бесконечные встречи. Говорили, что от него уходит жена, с которой он прожил лет тридцать.

Через несколько минут включат свет, все двери распахнутся, и в шифровалку ворвется полицейская команда особого назначения. - Мне больно! - задыхаясь, крикнула Сьюзан. Она судорожно ловила ртом воздух, извиваясь в руках Хейла.

Вобрав голову в плечи, он ударил убийцу всем телом, отшвырнув его на раковину. Со звоном разбилось и покрылось трещинами зеркало. Пистолет упал на пол.

Повсюду мелькали красно-бело-синие прически. Беккер вздохнул, взвешивая свои возможности. Где ей еще быть в субботний вечер.


Ritonici1986 26.05.2021 at 11:10

Memory is the second most important component in a computer.