AngularJS is an open-source JavaScript framework used to build rich and extensible web applications. It is developed by Google and follows the MVC (Model View Controller) pattern. It supports HTML as the template language and enables the developers to create extended HTML tags which will help to represent the application's content more clearly. It is easy to update and receive information from an HTML document. It also helps in writing a proper maintainable architecture which can be tested at a client-side.

• Allows us to create a single page application.
• Follows MVC design pattern.
• Predefined form validations.
• Supports animations.
• Open-source.
• Cross-browser compliant.
• Supports two-way data binding.
• Its code is unit testable.

A $scope is an object that represents the application model for an Angular application.

Each AngularJS application can have only one root scope but can have multiple child scopes. For example:

var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
$scope.carname = "Volvo";
});

AngularJS is a JavaScript framework with key features like models, two-way binding, directives, routing, dependency injections, unit tests, etc. On the other hand, JQuery is a JavaScript library used for DOM manipulation with no two-way binding features.

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