What is Angular and how does it differ from AngularJS?

// AngularJS (1.x) — scope + controller (legacy)
//   app.controller('GreetCtrl', function ($scope) {
//     $scope.name = 'World';
//   });
//   <div ng-controller="GreetCtrl">Hello {{name}}</div>

// Angular (2+) — a typed, component-based class
import { Component } from '@angular/core';

@Component({
  selector: 'app-root',
  standalone: true,
  template: '<h3>Hello {{ name }}</h3>',
})
export class AppComponent {
  name = 'World';   // typed class property, no $scope
}