Why do some processors provide support for double?precision shifting operations? What other doubleprecision operations are supported by processors?
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Double precision shifting allows you to shift over two registers. In a 32?bit machine, this means shifting over 64 bits. Many processors have some form of add or subtract instruction that allows you to add two numbers and include the carry out or borrow from a previous operation. Multiplication creates a double?length result.
Normally, half is lost. However, some processors yield a double?precision operation that deposits the double
precision result in two registers. Division is the inverse of multiplication. Some processors allow you to use a
register pair to hold, say, a 64 bit value that you can divide by a 32?bit value to yield a 32?bit result and a 32?bit
remainder.
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In many ways, the history of computers has followed a similar path to automobiles. At first, automobiles were curiosities, accessible to only a small portion of the population. This changed with the introduction of the Ford Model T in 1908 [Gross 1996]. Since then, automobile makers have continued to make improvements on cars. Compare some of the differences between a Model T and today’s cars in terms of the HCI goals of safety, usability and appeal.
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The blank areas at the top, bottom, left, and right of a document are the ________
A) margins B) Decrease Decimal C) borders D) boundaries
What is cache memory?
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Which of the following is a wireless Internet connectivity method that utilizes cellular technology?
A. 802.11ac B. WiMAX C. 3G D. Satellite