iDevice Primer 101: Basic Terminology
What is iOS?
iOS is basically the operating system of the iDevice family. As of the time of this writing, it is at version 5.0. It is what runs the iDevice and the platform on which all apps run.
What is VoiceOver?
VoiceOver is the screen reader that comes on all modern iDevice devices. It allows blind and low-vision users of these devices to hear what is on the screen, which makes it possible to do just about everything a sighted user can do. VoiceOver is found on the following devices:
- iPod Touch fourth generation (all models)
- iPod Touch third generation (32gb and 64gb models only)
- iPad first generation (all models)
- iPad second generation (iPad 2) (all models)
- iPhone 4S (all models)
- iPhone 4 (all models)
- iPhone 3GS (32gb and 64gb models only)
What is a gesture?
When talking about using VoiceOver, you very often hear the term "gesture" used to describe an action to be taken. A gesture is simply a motion to be performed with your fingers to tell VoiceOver to do something, in much the same way a keystroke on a computer is used to tell the computer to do something. Common gestures are "flicking", "tapping", or "rotating" with one, two, three, or four fingers.
What is an app?
An app is a program written for the iDevice that will accomplish some task. There are hundreds of thousands of apps for Apple devices alone, and they do everything from GPS navigation (on supported devices) to web searching to music creation and playback to wordprocessing and a great deal more.
What is an iDevice?
Throughout this document, the term "iDevice" is used to refer to a portable Apple device with a touch screen. This includes the iPod Touch, iPhone, and iPad product lines. When a specific devices is mentioned, it is intentional. For instance, all iDevices have wifi, but only the iPhone and 3G iPad can access cellular networks.
What does "jailbreak" mean?
Normally, iDevicees will only run the apps that Apple approves; any apps in the App Store have been given the green light by Apple. While this makes sure that apps are secure and do what they say they say, it also can limit a lot of functionality, so apps may not be able to do certain things because of these restrictions. When an iDevice is jailbroken, it means that a modified copy of iOS is installed on the device which lets it accept apps without official approval from Apple. Essentially, jailbreaking lets users install apps which may be able to do more than official apps can. The process is relatively straightforward, but it is strongly recommended that you do not jailbreak your iDevice unless you know what you are doing and feel sure that jailbreaking would be of use to you. There are many explanations and arguments both for and against jailbreaking, and we suggest that you do a good deal of research before deciding.