Great tools and useful software for IT pros. Today with so much open source tech around and so many items for developers who offer productive and useful applications, there's a lot to choose from. Information from the CIOs and IT pros who write avidly, we found the best software out there. Some of these apps based on information technology users and are great for security and system maintenance use. The prospect that your mainframe data center could be enhanced by additional IT software is a great possibility. Since systems are servicing many connected platforms in todays diverse data environment. Gaining an advantage is a constant concern for many computer server professionals.