The initial version of VMD was written by William Humphrey, Andrew Dalke, Ken Hamer, Jon Leech, and James Phillips. It was released in 1995. 7 8 The earliest versions of VMD were developed for Silicon Graphics workstations and could also run in a cave automatic virtual environment (CAVE) and communicate with a Nanoscale Molecular Dynamics. Newer versions have some new tools for drawing specific objects. These new objects will not be seen in the earlier versions. For example, newer ChemSketch files with delocalized bonds, Markush structures, or polymer structures with brackets or an index, will open in ChemSketch 5.0 but the delocalized bonds disappear, Markush bonds do not show the connected atoms, and brackets and indexes in.
We are committed to providing the Cornell community with the tools they need to continue working at home. Many of our software contracts already provide Home Use rights; see the articles for each software product for more information.We are working with other providers to increase availability. Please see our articles on Licensed Software for Faculty and Staff and Licensed Software for Students for updates on these efforts.


Some software at Cornell is acquired through software licenses that are managed by the university. Some of these software licenses enable all faculty, staff, or students to use the software at no cost. Others limit who is eligible to use the software or have a fee. Each licensed product has its own eligibility criteria, and not all products are licensed at all locations.
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Software Acquisition and License Management
CU Software is the university’s central software licensing resource, currently managing 25 different license agreements for more than 100 products. Most of these agreements have annual or multi-year terms, which are continually evaluated and renewed. CU Software is a collaboration between Cornell Information Technologies (CIT), Procurement and Payment Services, and the Cornell Store’s Technology Connection.
- Software license and contract management is managed by Procurement and Payment Services.
- Software sales and fulfillment and software license renewal are managed by The Cornell Store.
- Software technical support, electronic software distribution, and new software license assessment are managed by CIT.
CU Software's core service is software acquisition and license management. We help the Cornell community save on software costs by using economies of scale and promoting software license opportunities, on average saving the university an estimated $2.1 million a year. We handle all the details involved in providing the lowest prices for the software the Cornell community uses. We encourage all departments to consider assigning their software licensing to us so the university can maximize its purchasing power.
Objectives
- Reduce software license fees
- Reduce software administrative costs
- Reduce the incidence of non-compliance and software piracy
Services
- Use a standard evaluation process to determine whether to manage software licenses at the university level.
- Inform the Cornell community of software availability
- Provide methods of ordering software
- Distribute software
- Fulfill requirements of vendor contracts
- Manage billing, collecting, and reconciling designated accounts

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We also provide installation and registration support for the software we manage. Faculty, staff, and students in all Cornell locations and formal affiliations—Ithaca, Geneva, New York City, Washington, Qatar, and more—can use CU Software's services.