optical code readers; electronic monitor for recording the time, date and physical location accessed by the monitor; electronic monitor for recording the time, date and identity of persons accessing physical locations; electronic monitor for detecting authorized and unauthorized entry to restricted areas in response to the presence or absence of authorized entry codes; electronic monitor for updating entry codes and for detecting entry and attempted entry to restricted areas; computer software for bar code readers and communication tools to transfer data from bar code readers to computers for use in database or application programs; computer software for monitoring and controlling access to secured locations; computer software for configuring, viewing and printing data from electronic security mechanisms; and prerecorded computer programs used to download information in conjunction with electronic locks and electronic sensors for monitoring and controlling access to physical locations; electronic locks and electro-mechanical locks