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Computer Hardware

Computer hardware is a general term used to refer to all the physical parts of a computer. Internal hardware devices include hard drives and motherboards, while external hardware devices include monitors, mice, keyboards, and printers.

11,849 Questions

How old whould you be if you were born in 1990?

If you were born from January 1990-December 1990: Then you would be 19 years old now ONLY IF YOU HAVE HAD YOUR BIRTHDAY! IF YOU STILL NOT HAD YOUR BIRTHDAY, YOUR STILL 18 years of age.

Are they still making HD DVD?

HD DVD (short for High-Definition/Density DVD) is a discontinued high-density optical disc format for storing data and high-definition video.[1] Supported principally by Toshiba, HD DVD was envisioned to be the successor to the standard DVD format. However, in February 2008, after a protracted high definition optical disc format war with rival Blu-ray, Toshiba abandoned the format, announcing it would no longer develop or manufacture HD DVD players or drives.[1] However, the HD DVD physical disk specifications (but not the codecs) are still in use as the basis for the CBHD (China Blue High-Definition Disc) formerly called CH-DVD. The HD DVD Promotion Group was dissolved on March 28, 2008.[2]

Because all variants except 3× DVD and HD REC employed a blue laser with a shorter wavelength, HD DVD could store about 3⅕ times as much data per layer as its predecessor (maximum capacity: 15 GB per layer instead of 4.7 GB per layer).

FROM::: http://en.wikipedia.org/wiki/HD_DVD

What is the Purpose of cladding in fiber optical cable?

prevent light loss

it reflects the signal back to the core.

network + guide to networks pg106 Edition 4.

What does prolific-usb-to-serial comm port mean?

That means that you're using a USB to Serial adapter like this:

http://sewelldirect.com/usbtoserial.asp

Prolific is one of the companies that makes USB to Serial chipsets, and when you are using one of their adapters it will show up on your computer like that. Many newer computer do not have serial ports on them so you need a USB to Serial adapter to be able to use serial devices with your computer. If you have a laptop and you're using a docking station then it might have a USB to Serial adapter inside of it which is using the Prolific chipset.

How much data will the DVD hold?

4.7GB on a standard DVD - can be a duel layer disk (double sided) which holds 9.4GB

What is the size of supercomputer?

NASA has probablly the biggest SuperComputer in the entire world, i may be wrong, but from what I've seen it is the largest. Try using Google images too find the biggest!

Computer processing speed is measured in?

gega hertz

Computer processing speed is never measured in units of Hertz (doing so is highly deceiving), it is measured one of several ways:

  • IPS - Instructions Per Second - average number of instructions per second.
  • FLOPS - FLoating point Operations Per Second - average number of floating point operations per second (on some machines one instruction can do several floating point operations).
  • Whetstone - a standardized measure of floating point performance.
  • Dhrystone - a standardized measure of integer performance.
  • Livermore loops - a test of vector performance on highly parallel computers.
  • Tak - a test of recursion performance.
  • POV-Ray - a test of 3D rendering performance.
  • etc.

The most accurate measure of computer processing speed is how fast a computer is able to execute your final complete application. Unfortunately this software is almost never available when you need it for processor selection.

What are the uses of fiber optic?

fibre optics tranfer data through total internal reflection so the data loss in negligable as comparied to metal wires available in the market.So the main use of optical fibre is "the optical fibre cables"

but there are other uses as well..

  1. It can be use as censors.
  2. It can also be used to transmit power using 'Photo voltiac cell'.
  3. It is used in most HD-televisions as digital audio optical connection.
  4. It can be used as Fuse.

What if you have two modes?

Technically there is no such thing as "no mode". If there is more than one mode in a set of numbers, you list out all the modes. For example in the list of numbers: 11, 15, 11, 10, 9, 8, 8, 6, 5, 4, 6 11, 8, and 6 would be the modes.

What is the latest modem standard?

Good old A+ hardware test questions.

Version .92 is the current standard.

Why is overclocking not recommended?

When you overclock a component you are making it run at more clock cycles per second. Several issues arise when you are thinking about overclocking. The first issue is heat. The power intake of the component has been increased and with that increase comes more heat. Not having proper cooling inside the machine can cause the overclocked chip to instantly be destroyed or cause other severe damage. Also, with the increased heat you are also causing the average air temperature inside the casing to rise. This can cause damage to other components as well. Your second issue is ensuring you have enough power to operate at the new clock rate.

If done properly, overclocking can be very benificial to make cheaper components run at the same clock rate as more expensive ones.

What are primitive devices?

gago,bobo.,putang ina,mongoloid,tanga kau!1tama to e2 isagot nyo....

What is an mimic diagram?

MIMIC diagram is the representation of a circuit.

Mimic is graphical representation on HMI or SCADA or even on a panel with the help of LED,S and circuit flow diagram.

One can represent flow in the plant status of motors, valves damper etc also

Difference between usb port and parallel port?

parallel ports are used for old style printers or hardware to connect to due to the popularity and speed of usb is prefered over parallel as most printers nowadays are usb