AngularJs Registering Services Value and Service

Type notes into field. "Enter" or "Add" - to Add note to Notes.
Five notes (max) will be written to notes (newest first). If there are more notes, the oldest note will be archived:

We have two services, Archiv:
var Archive = function() {
    this.store = [];
};
...
and Notes:
var Notes = function (archive) {
    this.archive = archive;
    this.store = [];
};
...
To use these services in our controller, we register them:
angular.module('notesApp', [])
    .value('archive', new Archive()) //register 'archive' as new Archive()
    .service('notes', Notes)//register 'notes' as constructor-function for Notes
    .controller('NotesCtrl', function ($scope, notes, archive) { ... } //Using registered variables 'notes' and 'archive'


• .value - is the simplest registering. We can register only instances here.
• .service - is second simplest registering. We can register here constructor functions So it is possible to register objects with dependencies to other objects.