J. Glenn Brookshear's Computer Science: An Overview (11th Edition) PDF

By J. Glenn Brookshear

Computer technology: An Overview makes use of huge insurance and transparent exposition to offer an entire photo of the dynamic machine technological know-how box. available to scholars from all backgrounds, Glenn Brookshear makes use of a language-independent context to motivate the improvement of a realistic, practical realizing of the sector. an summary of every of the $64000 components of desktop technology (e.g. Networking, OS, computing device structure, Algorithms) offers scholars with a normal point of talent for destiny courses.

The Eleventh Edition positive factors new contributing authors (David Smith — Indiana collage of PA; Dennis Brylow — Marquette University), new, smooth examples, and up-to-date assurance in line with present expertise.

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20 Chapter 1 Data Storage We begin our study of computer science by considering how information is encoded and stored inside computers. Our first step is to discuss the basics of a computer’s data storage devices and then to consider how information is encoded for storage in these systems. We will explore the ramifications of today’s data storage systems and how such techniques as data compression and error handling are used to overcome their shortfalls. 1 Bits and Their Storage Inside today’s computers information is encoded as patterns of 0s and 1s.

Indeed, since flash memory is not sensitive to physical shock (in contrast to magnetic and optic systems) its potential in portable applications is enticing. Flash memory devices called flash drives, with capacities of up to a few hundred GBs, are available for general mass storage applications. These units are packaged in small plastic cases approximately three inches long with a removable cap on one end to protect the unit’s electrical connector when the drive is off-line. The high capacity of these portable units as well as the fact that they are easily connected to and disconnected from a computer make them ideal for offline data storage.

Second, the concept of a flip-flop provides an example of abstraction and the use of abstract tools. Actually, there are other ways to build a flip-flop. 5. 3. A computer engineer does not need to know which circuit is actually used within a flip-flop. Instead, only an understanding of the flip-flop’s external properties is needed to use it as an abstract tool. A flip-flop, along with other well-defined circuits, forms a set of building blocks from which an engineer can construct more complex circuitry.

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