tailieunhanh - Buying a Computer For Dummies 2004 Edition phần 6

(Đó là nhanh gấp 12 lần so với 1X, trong đó có một giờ để viết giá trị một giờ của âm nhạc.) Ổ đĩa CD-R/RW có một số X thứ ba, đó là tốc độ mà các ổ đĩa RW được ghi vào. Con số này là khác nhau từ đĩa CD-R giá trị bởi vì đĩa CD-RW được viết một cách khác nhau từ đĩa CD-R. DVD? DVD-R? Họ không có giá trị X được liệt kê. Giả sử là, tất cả chúng chỉ nhanh chóng. | Chapter 13 Your Computer s Operating System 125 Figure 13-2 The Macintosh OS looks like this. Even if you know that your plans include a PC with Windows in your future I urge you to find a computer store that sells the Apple Macintosh and then sit down and take a test drive. You ll find that the salespeople are enthusiastic and helpful and that it s a good thing to survey the variety before you consign yourself to Windows slavery. 1 The Mac OS is the only true alternative to Windows. If you re planning on using your computer for graphics you would be remiss not to survey what s available on the Mac. The Mac OS is tightly tied to the Macintosh hardware. Be aware that in addition to being tied to a certain version of the Mac OS Macintosh software is also geared to specific microprocessors. For today s systems you want Mac software geared to the G3 G4 processor. Linux Linux is a free operating system that runs on just about any computer hardware platform but particularly on PCs. 126 Part II Hardware and Software Overview Well Linux isn t exactly free. You do pay for a release of Linux but that also includes bells and whistles and programs that make installing Linux a snap. You can even add Linux to a computer that already runs Windows and share both operating systems. Linux can be cryptic at times but as long as you add a friendly shell which adds a graphical user interface to the program it can be easy to use. So unless you re a programmer or Unix maven look for a version of Linux with a shell program that helps you get used to the operating system. This is the trade-off for Linux being as powerful as it is even more powerful than Windows. Figure 13-3 shows Linux being run with a shell. Linux is similar to the Unix operating system. If you like you can get the Unix operating system for your computer as well. But why bother when Linux can be had for next to nothing Linux distributions go by product names such as Red Hat Linux Mandrake Linux and SuSE Linux. Linux is .