In demand paging, a page is not loaded into main memory until it is needed. In pure demand paging, even a single page is not loaded into memory initially. Hence pure demand paging causes a page fault.
Page fault, the situation in which the page is not available whenever a processor needs to execute it.
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The price difference between a platinum and gold ring is a major difference. Metals are priced on the weight and platinum is heavier than gold, and its more pure and harder to make then gold.
A complex number is any number that is in the real/imaginary plane; this includes pure reals and pure imaginaries. The difference between two numbers inside this plane is never outside this plane; therefore, yes, the difference between two complex numbers is always a complex number. However, the difference between two numbers that are neither purely imaginary nor purely real is not always necessarily a number that is neither purely imaginary nor purely real. Take x+yi and z+yi for instance, where x, y, and z are all real: (x+yi)-(z+yi)=x+yi-z-yi=x-z. Since x and z are both real numbers, x-z is a real number.
A pure recurring decimal is a type of repeating decimal. In a pure recurring decimal, all the digits of the decimal are repeated infinitely.
True. Complex numbers have a real part and an imaginary part. If either one of these is zero, the complex number will be a pure real or a pure imaginary.
A pure imaginary number is a complex number that has 0 for its real part, such as 0+7i.