TAILIEUCHUNG - Installing Mac OS X Programs

. Installing Mac OS X Programs In general, new programs arrive on your Mac via one of two avenues: on a CD or DVD, or via an Internet download. | . Installing Mac OS X Programs In general new programs arrive on your Mac via one of two avenues on a CD or DVD or via an Internet download. The CD method is slightly simpler see Performing the Installation later in this section. For help installing downloaded programs on the other hand read on. . .sit .zip .tar .gz and .dmg Programs you download from the Internet generally arrive in a specially encoded compressed form. And unless you ve changed the settings they arrive in the Downloads folder stack on your Dock. The downloaded file s name usually has one of these filename extensions .sit indicates a StuffIt file the standard Macintosh file-compression format of years gone by. .zip is the standard Windows compression file format. And because Leopard has a built-in Compress command right in the File menu and doesn t come with Stuff It Expander .zip is the new standard Macintosh compression format. It certainly makes life easier for people who have to exchange files with the Windows crowd. .tar is short for tape archive an ancient Unix utility that combines but doesn t compress several files into a single icon for simplicity in sending. .gz is short for gzip a standard Unix compression format. . or .tgz represents one compressed archive containing several files. .dmg is a disk image described below. Fortunately if you use Safari Section as your Web browser you don t have to worry about all this because it automatically unzips and unstuffs them. If you use some other browser StuffIt Expander can turn all of them back into usable form when you download a file. StuffIt Expander doesn t come with Mac OS X but you can download it for free from for example this book s Missing CD page at . . Disk Images .dmg files Once you ve unzipped a downloaded program it often takes the form of a disk image file whose name ends with the letters .dmg second from top in Figure 5-22 . Some files arrive as disk images straight from the Web .

• Kỹ thuật lập trình
• công nghệ thông tin
• kỹ thuật lập trình
• hệ điều hành
• đồ họa thiết kế
• OReilly
• Mac
• OS
• Leopard
• The Missing Manual
• Installing Mac OS X Programs