Different Types of Video and Audio That You Can Play on iTunes
iTunes, which comes with Mac OS X Snow Leopard, is a media player that plays audio and video files. These files can be in any of many different formats. Some of the more common file formats that iTunes supports are
MP3: The small size of MP3 files has made them popular for file trading on the Internet. You can reduce MP3 files to a ridiculously small size (at the expense of audio fidelity), but a typical CD-quality, three-minute pop song in MP3 format has a size of 3 to 5MB.
AAC: Advanced Audio Coding is very similar to MP3; in fact, AAC files offer better recording quality at the same file sizes. However, this format originally supported a built-in copy protection scheme that prevented AAC music from being widely distributed on Macs. (Luckily, this copy protection is no longer applied to iTunes tracks, and you can still burn protected AAC tracks to an audio CD, just as you can MP3 tracks.) The tracks that you download from the iTunes Store are in AAC format.
Apple Lossless: This Apple format provides the best compromise between file size and sound quality: These tracks are encoded without loss of quality. However, Apple Lossless tracks are somewhat larger than AAC, so it’s generally the favorite of the most discerning audiophile for his or her entire music library.
AIFF: The standard Macintosh audio format produces sound of the absolute highest quality. This high quality, however, also means that the files are pretty doggone huge. A typical pop song in AIFF format has a size of 30 to 50MB.
WAV: Microsoft created its own audio file format (WAV) that works much like AIFF. It can reproduce sound at higher quality than MP3, but the files are very large.
CD audio: iTunes can play audio CDs. Because you don’t usually store CD audio anywhere but on an audio CD, file size is no big whoop.
Movies and video: You can buy and download full-length movies, TV shows, music videos, and movie trailers from the iTunes Store. And, with an Apple TV unit connected to your home theater system, you can watch those movies and videos from the comfort of your sofa on the other side of your house.
Podcasts: These audio downloads are like radio programs for your iPod, but iTunes can play and organize them, too. Some podcasts also include video and photos to boot.
Ringtones: iPhone owners, rejoice! iTunes automatically offers to create ringtones for your iPhone from the tracks you’ve bought from the iTunes Store.
Audiobooks: No longer do you need cassettes or audio CDs to enjoy your spoken books. iTunes can play them for you, or you can send them to your iPod for listening on the go.
Streaming Internet radio: You can listen to a continuous broadcast of songs from one of tens of thousands of Internet radio stations, with quality levels ranging from what you’d expect from FM radio to the full quality of an audio CD. You can’t save the music in iTunes, but it’s still great fun.
Macs and OS X Glossary
802.11x wireless
A protocol for connections to your Ethernet network and your Apple TV unit.
Macs and OS X Glossary
Address Book
The place for addresses, phone numbers, and e-mail addresses on the Mac. You can also add a picture and note about the person.
Macs and OS X Glossary
alias
A pointer to another application of folder.
Macs and OS X Glossary
Bluetooth
A short-range wireless technology that lets your Mac communicate with other compatible gadgets, from up to 30 feet away.
Macs and OS X Glossary
ColorSync
A printer setting that lets you add black and white, blue tone, sepia, or other filters.
Macs and OS X Glossary
cookie
A small file that a web site automatically saves on your hard drive. It contains information that the site will use on your future visits. For example, a site might save a cookie to preserve your site preferences for the next time or ¯ in the case of a site such as Amazon.com ¯ to identify you automatically and help customize the offerings that you see.
Macs and OS X Glossary
Dashboard
A translucent screen that lays on top of your desktop and houses clever little applications called widgets.
Macs and OS X Glossary
desktop
The whole of your Mac’s computer screen. Also called the Finder.
Macs and OS X Glossary
Discoverable mode
Helps other Bluetooth devices find your Mac.
Macs and OS X Glossary
Dock
The colorful bar on the bottom of the Mac screen. It’s a rough cross between the Windows taskbar and the Start menu.
Macs and OS X Glossary
double-clicking
Left-clicking twice in rapid succession while keeping the cursor in the same location.
Macs and OS X Glossary
dragging
Positioning the cursor on top of a symbol or icon and then holding down the mouse button and rolling the mouse across your desk, which moves the symbol or icon to a new location.
Macs and OS X Glossary
driver
A software program provided by the printer manufacturer that tells Mac OS X how to communicate with your printer.
Macs and OS X Glossary
Dynamic Host Configuration Protocol; DHCP
A protocol that enables a computer to automatically get connection information for communicating with a network or your ISP.
Macs and OS X Glossary
Exposé
A Mac feature that, with a click of a button, organizes your Mac desktop.
Macs and OS X Glossary
FileVault
A Mac feature that automatically scrambles, or encrypts, the data in your Home folder.
Macs and OS X Glossary
Finder
The application that Mac OS X runs to display the operating system’s menus and windows.
Macs and OS X Glossary
FireWire
A speedy connector often used with digital cameras.
Macs and OS X Glossary
FTP
Part of the TCP/IP protocol suite; (the hoary acronym FTP stands for File Transfer Protocol. FTP is one of the oldest methods for sharing files between computers
Macs and OS X Glossary
function keys
Housed on the top row of the Mac keyboard, the keys with the letter F followed by a number.
Macs and OS X Glossary
iCal
The Mac’s built-in calendar.
Macs and OS X Glossary
iDVD
The application that lets you burn movies onto a disk.
Macs and OS X Glossary
iMac
A Mac desktop computer.
Macs and OS X Glossary
iPhoto
The application where you store and touch up digital images.
Macs and OS X Glossary
iSync
The application that keeps your calendar, Address Book, and Internet bookmarks synchronized across multiple devices.
Macs and OS X Glossary
iTunes
Apple’s renowned musical jukebox.
Macs and OS X Glossary
iWeb
The tool that lets you create personal Web sites, blogs, and podcasts.
Macs and OS X Glossary
Lightweight Directory Access Protocol; LDAP
With LDAP, you can search a central company directory from anywhere in the world as long as you have an Internet connection.
Macs and OS X Glossary
Lightweight Extensible Authentication Protocol
An encryption protocol developed by Cisco Systems for superior security in the business world.
Macs and OS X Glossary
Mac Mini
Apple’s budget desktop computer. Weighing less than 3 pounds, it’s portable, but not in the same sense as a notebook.
Macs and OS X Glossary
Mac OSx
The operating system that Apple included with all new Mac computer systems since 2002.
Macs and OS X Glossary
Mac Pro
A Mac desktop intended for professionals facing demanding graphics and other computing tasks. Its arrival completed the transition of the Mac line to Intel processors.
Macs and OS X Glossary
MacBook Air
Apple’s super-thin Mac. Encased in aluminum with a 13.3-inch display, Air measures just 0.16 inches at its skinniest point and just 0.75 inches at its thickest. But it still boasts a full-size keyboard and very good battery life.
Macs and OS X Glossary
MacBook, MacBook Pro
Apple’s successor to the PowerBook.
Macs and OS X Glossary
Mail
Apple’s built-in calendar.
Macs and OS X Glossary
MobileMe
The application that keeps your e-mail, contacts, and calendar synchronized, no matter what device you’re using.
Macs and OS X Glossary
Network interface card
A hardware device that your computer uses to talk to the rest of the network.
Macs and OS X Glossary
operating software
The software that makes a Mac work.
Macs and OS X Glossary
parental controls
Safety features that let you place limitations on your child’s computer use.
Macs and OS X Glossary
partition
A formatted section of a disk that contains data.
Macs and OS X Glossary
PDF
A special document display format developed by Adobe; they display like a printed document but take up minimal space.
Macs and OS X Glossary
phishing
A form of Internet fraud where identity thieves, posing as a respectable financial or Internet company, tries to dupe you into clicking phony links to verify personal or account information.
Macs and OS X Glossary
RAID set
A group of multiple separate disks, working together as a team.
Macs and OS X Glossary
Safari
The Mac’s Web browser.
Macs and OS X Glossary
Smart Groups
A way to group contacts in your Address Book.
Macs and OS X Glossary
Smart Mailboxes
Searches for e-mail that matches specific search criteria.
Macs and OS X Glossary
Spotlight
The Mac’s search technology.
Macs and OS X Glossary
start-up disk
The boot drive that contains the Mac OS X system you’re using at the moment
Macs and OS X Glossary
thread
Contains an original message and all related replies, which makes it easy to follow the flow of an e-mail discussion without bouncing around within your Inbox, searching for the next message in the conversation.
Macs and OS X Glossary
trackpad
The smooth surface below your Mac keyboard that’s your laptop’s answer to using a mouse.
Macs and OS X Glossary
USB port
The place on your Mac where you plug in devices you want to connect, such as printers, scanners, digital cameras, and more.
Macs and OS X Glossary
Voiceover
A screen reader designed to make using a Mac easier by speaking the contents of the screen.
Macs and OS X Glossary
wireless network
A network that isn’t connected by wires but uses radio waves, instead.
Share This
