A network card is a hardware component that allows you to interface with a closed network of computers that only approved members can access. It can be an add-in card on your computer’s motherboard (added in an open slot) or can be added externally. Now, many networks are increasingly becoming wireless systems and use a VPN (virtual private network) to access internal files.

What is a hard drive?

A hard drive on a computer is a piece of internal hardware that allows the user to save data in the form of documents, pictures and videos. The larger the hard drive, the more data you can store. Hard drive capacities are rated on megabytes and can be added anytime to increase storage space. You can also add external hard drives, such as a “thumb drive,” which plugs right into an open computer port, and then can be unplugged and plugged into other compatible computers.

What is a power supply?

A power supply is what powers your computer -- either electricity or a battery. Laptops generally have rechargeable batteries (for mobility) and a standard AC cord so you can run it off of either power source. Desktops, since they do not have batteries, need to be plugged directly into a power source. Usually you plug your unit into a power strip, which is plugged into a wall outlet. Power strips have surge protectors (a fuse that blows when a power surge occurs) to protect the computer, which helps to avoid power surges that can seriously damage or destroy your system.

How much does computer repair cost?

Computer repair costs vary based on what you need. What is the problem? How much are the parts needed to fix it? How many hours of labor are involved? How much does the repairman charge? Some charge on an hourly rate, some charge a flat fee. Luckily the computer repair business is huge, which means competitive rates are out there. You can realistically expect a floor of $35-$50 an hour for computer repair services, on up to $100 and even higher in some cases. Call around, get estimates, look for deals, and ask friends for recommendations.

What are the reasons for a computer not turning on?

If your computer is not starting up, the first thing to check is the power supply. Is it plugged in? If it’s plugged in, check your power supply. Are you running it through a power strip? You might have accidentally flipped the power strip’s on/off switch to off. Make sure it’s turned on and plugged in. Does the socket have power? If you have power and it’s not turning on, you probably have a component failure inside the computer.

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