/// <summary>
        /// Adds the specified operating system.
        /// </summary>
        /// <param name="operatingSystem">The operating system.</param>
        /// <returns></returns>
        public tbl_OperatingSystems Add(tbl_OperatingSystems operatingSystem)
        {
            operatingSystem.ID = Guid.NewGuid();
            _dataContext.tbl_OperatingSystems.AddObject(operatingSystem);
            _dataContext.SaveChanges();

            return(operatingSystem);
        }
 /// <summary>
 /// Updates the specified operating system.
 /// </summary>
 /// <param name="operatingSystem">The operating system.</param>
 public void Update(tbl_OperatingSystems operatingSystem)
 {
     _dataContext.SaveChanges();
 }