computer help need now please help me?

Question

Major problems that occur to computer systems. Discuss ways to prevent or minimize such hardware problems in
A) Brownout
B) Humidity
C) Spike
D) Dust
E) Power Outtage

Answer 1

A, C, and E can all be answered similarly. It's not so much the power outage or brownout, but the ensuing surge or spike that can occur as the power comes back on. During a brownout and full outage, your PC will shut down abnormally, unless you have a UPS. If you're running a program that is trying to write data at the time the computer shuts down, you will lose any unwritten data and possibly corrupt some files. Chances are, though, that one or two brown/blackouts won't harm the computer. Repeated outages might wreak some havoc on the hard drive eventually. What's more damaging is (again), the surge that occurs once power is restored. A power spike can harm just about anything, your power supply, motherboard, processor... Add lightning strikes to the list of offenders also.

The best prevention is to add an Uninterruptable Power Supply. Not only does this give you a few minutes to gracefully shut down your computer in the event of a power outage (it'll keep your PC running on battery power for a few minutes), but it also "conditions" the power coming into the PC. It will level out any spikes that might occur, and will provide a constant level of power during temporary brown outs. If a UPS is out of the question, at least add a surge protector. While this won't save you during a power outage, it will help protect against spikes and lightning strikes.

As far as humidity, if it feels humid to you, it definitely feels humid to your PC. The inside of your PC case can get very hot, which magnifies the effects of humidity. I'm not exactly sure what the effects are of humidity on PC components, but I imagine excessive moisture in the air probably allows electrical components to corrode easily. Best prevention is to keep the PC in an air-conditioned room and add a dehumidifier to the room if necessary.

Dust - The biggest effect of dust is an increase in temperature. Besides making the inside of your PC look dingy and ugly, dust can block air intake/exhaust vents on your computer, blocking vital air flow that helps to cool PC internals. Dust can settle on cooling fins on processor/video card heat sinks, raising the temperature of the components. Cooling fins provide tons of surface area for cooling--the more surface area exposed to fresh air, the cooler the hardware will run. Cover some/most of the surface area with a sheet of dust, and the cooling mechanism loses its effect. As a result, the processor/video card runs hotter.

Dust can also disrupt connections between plug-in cards and the motherboard. Any plug-in card, such as a video card, modem, memory, has a bank of gold/metallic pins or contacts that plug into a socket on the motherboard. Dust can creep its way inside the socket and lodge itself between the contacts on the card and the contacts on the socket. The result can be spotty performance of the plug-in card, or complete failure.

The best defense against dust is to keep the area around the PC clean, unobstructed, and dust free. This last suggestion isn't always possible, so keep a can of compressed air nearby. Periodically spray the vents on the outside of the PC with the canned air to remove any dust buildup. Open the PC case and spray out the inside as well. Be careful to hold the can upright--spraying while the can is held sideways will result in a spray of mist on your PC and its components, and you don't want that.

That's my input.

Answer 2

On a Mac, shift/administration/3 takes a image of the show screen. in case you press shift/administration/4, you are able to click and drag over the section you %; the photograph is taken once you launch the mouse button.

Answer 3

What is your budget ?
Airconditioning ( Latest ACs have dust filters )
and UPS systems.