An Alternative Definition for IQR. In some texts, the interquartile range is defined differently. It is defined as the difference between the largest and smallest values in the middle 50% of a set of data. To compute an interquartile range using this definition, first remove observations from the lower quartile.
A hard drive is a device used to store data in a semipermanent state on your computer. Computer memory is a series of small packets of data called bits. Each bit is a 1 or a 0, and each bit is stored as a small magnetic charge on the hard drive. A read/write head moves over the hard drive to retrieve or rewrite the bits as needed.
March 31, 2015. A DVD drive is a component of a computer or other electronic device designed specifically to utilize digital versatile discs, or DVDs. They are installed on everything from desktop computers, laptops, DVD players, cars, televisions and many other devices and areas. They have grown from their first inception in 1997 to the Blu-Ray discs today.