Computer Hardware

Power Supplies are usually measured primarily by their wattage. IE, 650 watt, 750 watt, 1000 watt, etc.

This can be misleading, however, as PSUs are divided into many different areas.

First you want a high enough wattage to run your computer, plus some breathing room. Most PSUs run at 75% or less of what they'te 'rated' for. Look for 80 PLUS certifications. This means the PSU is more efficient and provides closer to advertised power.

80 PLUS Certified means it provides 80% of the rating

BRONZE is even more, SILVER higher still, and GOLD means the highest (~95%)

You should generally factor in your CPU's wattage, and your videocard's reccomendations. Most PCs are okay in the 650 watt zone with a dual or triple core CPU and a single videocard. But for quad-cores, or systems with high-end or multiple videocards, 1000 or more watts may be reccomended.

It's also good to go a bit 'above', as power supplies lose 5-10% of their capacity per year (5-25% for non-80PLUS PSUs)

Beyond that, the rest is mostly gimmick and hype and does not make a considerable difference. Make sure it has enough and correct connectors, tho.

160 MB/s

It could be called either a buffer or a wait state.

The original IBM compatible parts used an 8-bit ISA slot. After that, they moved to a 16-bit ISA slot. There were other things like a VESA slot that didn't last for long. Then there were PCI slots (not express), and AGP was a faster video card slot standard. Then PCI-express replaced both PCI and AGP.

It Could be blocking other programes, messing withthe internet connection, or causing Viruses.

A file-server is essentially a computer with a HUGE hard-drive, masses of RAM and one or more super-fast processors - which is connected to all the other computers on the network. It not only stores programs and data, but also communicates with the computers, printers, plotters and other hardware on the network.

storage space, control space, and build space storage space, control space, and build space

Plotters. Any kind of physical movement, like a robotic arm is a form of output, so mechanical things connected to and controlled by computers can be considered as output devices. A modem is both an input and output device.

Microphone is a input device because it's plugged in computer. All devices that you plug in computer are input devices.

usb 2.0 is about 40 times faster than usb 1.1

Cladding in optical fibre is done for the total internal reflection of the waves propagating inside the fibre. The core of the fibre is made of material with less refractive index value than the material covering the core. When wave falls on the high refractive index material passing through the core it is reflected back.

Input device

If you have Windows, they are in C:\Windows\Temp , and cookies in C:\Documents and Settings\username\Cookies

If you have Ubuntu, I think they're in /tmp and home/username

Per the A+ book "Guide to Managing and Maintaining your PC," it says to know for sure what type of cable you're dealing with, trace the cable from its source to its destination.

Generally, a power cable will be coming from the power supply unit, while data cables don't. That is the big block in one of the corners of the case, with the power switch and AC in on the outside of the case. Also, power cables' sockets will almost always be either rectangular, split into an even number of equally sized squares, or rectangular with one rounded corner and 4 metal pins, whereas data cables come in all shapes and sizes.

The easiest way is to check if the cable is coming from the power supply. Most of the time power wires are black (ground), red (5v), yellow (12v), and sometimes orange (3.3 v). Power cables are usually large gauge wires.

Data cables are usually flexes or fine gauge wires. Data are grey or black ribbon cables, for PATA. Small flat single color for SATA (commonly red or black).

it is a port or a connection for a graphics card. It is the second version of PCI express with a speed of x16. To use a graphics card with this, you will need a PCIe 2.0 x16 port on your motherboard. Most modern motherboards have this.

OCR (Optical Character Recognition) is a program that is used to convert a scanned document into a text file that can be further edited. The downside is that not all the characters in the text file will have been converted properly. Further proofreading is necessary to correct any mistakes the OCR program has made.

Both are mobile computers. However, the mini laptop has a keyboard while the tablet does not. A mini laptop's screen is smaller than full size, while one side of a tablet is the monitor. A tablet's monitor is touch sensitive and has a virtual keyboard when required to input info. Both do not have any space for built-in storage drives. The mini laptop does provide ports for connecting an external drive, while the tablet does not.

A microphone and a computer mouse has only an output. A loudspeaker and a printer has only an input. That makes the mouse an INPUT device and the printer an OUTPUT device because they are named according to their use by the computer. It receives input from a mouse and sends output to a printer.

EDO RAM is a type of Dynamic RAM (DRAM) that improves the speed at which the processor can retrieve data from memory by allowing timing overlaps between memory accesses. EDO stands for extended data output.

It will depend on the resolution, length of the music video or movie and compression type which the video files use. e.g. For use in a pocket PC you can even have a full movie in AVI format which can be e.g. only 400MB per movie and that way you can have around 10 movies in a 1GB card. If your music video file size is 100MB you can have 40 of those in 4GB memory.

- Neeraj Sharma

A yobibyte is a unit of storage equal to 280 bytes.

1 expresscard

2 cardbus

3mini pci

4firewire

Metric prefixes are used either as powers of 10 or powers of 2^10 in the computer industry. Venue determines correctness.

Where 1 KB = 1000 Bytes, 50GB = 50,000,000 KB
Where 1 KB = 1024 Bytes, 50GB = 52,428,800 KB