Download PDF by Paul McFedries: Computers Simplified, 7th Ed

By Paul McFedries

ISBN-10: 0470168773

ISBN-13: 9780470168776

Here’s the best advisor ever to desktops — a publication that skips the long-winded motives and exhibits you the way issues paintings. Full-color display pictures stroll you thru each one step, and self-contained, two-page classes make studying a snap. You’ll discover ways to use kinds of pcs and software program, create files and use assorted courses, get on-line, commence utilizing email, and deal with your song and electronic photographs. A pleasant personality known as Chip introduces every one activity, and sidebars provide real-world suggestion.

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When you are finished working with your data, you can store it in a more permanent form on a hard drive or a removable drive. 28 Hard Drive External Hard Drive The hard drive, also called the hard disk drive (HDD) or the hard disk, is your computer’s main permanent storage area. The hard drive sits inside the computer case and stores your programs and documents. The hard drive is a magnetic disk that holds your data even when you turn off your computer. Most current hard drives can store hundreds of gigabytes of data.

35 Determine How Much RAM You Need . . . . . . . . 36 Select Data Storage Options. . . . . . . . . . . 37 Choose a Monitor and Video Card. . . . . . . . . 38 Choose a Printer . . . . . . . . . . . . . . . 39 Add Other Peripherals . . . . . . . . . . . . . 40 Purchase Additional Software . . . . . . . . . . . 41 Tips on Purchase Considerations . . . . . . . . . . qxp 8/21/07 1:07 PM Page 34 Choose a Computer Type The most important consideration when purchasing a computer is the type of system that you need.

The other major CPU maker is AMD, which manufactures the Sempron and Athlon chips. Macintosh computers used to come with PowerPC chips made by Motorola, but most Macs now use Intel Core 2 Duo chips. The most common measure of a CPU is its speed. The speed is measured in cycles per second (hertz, or Hz) where a cycle represents a single task performed by the CPU, such as adding two numbers. CPU speeds are usually measured in gigahertz (GHz), or billions of cycles per second. CHIP CPU Caches Front Side Bus Many CPUs come with a feature called a cache, which is a storage area where the CPU keeps frequently used data.

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Computers Simplified, 7th Ed by Paul McFedries

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