how to checked only one checkbox in ng-repeat checkbox using angularjs?

when i go to page i need always checked somecheck boxes like software or harware i have tried its not working .here i have shown all checkbox selected false but i want to checked only one checkbox others should be false

function Test1Controller($scope) {
  var storeid = window.localStorage.getItem("storeid");
  var serverData = ["software", "hardware", "Accessories"];
  $scope.items = [];

  for (var i = 0; i < serverData.length; i++) {
    var modal = {
      name: serverData[i],
      selected: false,

    };
    $scope.items.push(modal);
  }

  $scope.check = function() {
    var checkedItems = [];
    for (var i = 0; i < $scope.items.length; i++) {
      if ($scope.items[i].selected) {
        checkedItems.push($scope.items[i].name);
      }
    }
    console.log(checkedItems);
  }


}

<script src="http://ift.tt/1bdM3QL"></script>

<div ng-app>
  <div ng-controller="Test1Controller">
    <div ng-repeat="item in items">
      <input type="checkbox" ng-model="item.selected" />{{item.name}}
    </div>
    <input type="button" name="submit" value="submit" ng-click="check()" />
  </div>
</div>