Computer Science Made Simple: Learn how hardware and by V. Anton Spraul

By V. Anton Spraul

A Brand-New publication on an important subject: laptop technology Made basic bargains a simple one-stop source for know-how newcomers and complicated techies alike. V. Anton Spraul clarifies the elemental suggestions of and software program in addition to networks, the web, snap shots, and different functions, emphasizing tips on how to positioned pcs to be just right for you (instead of the opposite direction around).

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Extra resources for Computer Science Made Simple: Learn how hardware and software work-- and how to make them work for you!

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It contains input devices (such as a keyboard and a mouse), output devices (such as a monitor and printer), and storage devices (such as a hard drive and a CD-ROM drive). KEY TERMS CPU, bus, main memory, RAM, booting, machine language, stored program concept, logic circuit, cache, backwards compatibility, motherboard, interfaces COMPUTER ARCHITECTURE Having looked at all the parts of a computer system, now open the case of the computer to see what’s inside and to learn how it works. 1 shows the major internal components of a computer.

This action brings the program into main memory. Throughout the execution of the program, data is sent to the monitor for display. Also throughout the execution, the CPU must read the instructions of the program from main memory. Suppose the user opens an existing document for editing with Word. To do so, he or she clicks the mouse on a menu item that reads “Open,” then types the name of the file using the keyboard or clicks the file name from a list of Word files. Now the computer must access the hard drive again to load the file into main memory.

One technique used is to track how the comparison turns out, and if the same comparison comes up again soon, the CPU guesses it will turn out the same way. But the technique means the CPU must somehow temporarily store the results of comparisons, which further complicates its design. Heat Dissipation If you opened the case of a computer system, you probably would not be able to see the CPU package. That’s because the CPU is covered by two other devices. Immediately on top is the heatsink, which is just a metal block with fins that draw away heat from the CPU.

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