PROMISSORY NOTE May , 2015 FOR VALUE RECEIVED, BORIS NIKOLIC, having an address at ("NIKOLIC"), hereby promises to pay to , having an address at ("SCHWARTZ"), Note Payments (as hereinafter defined), from time to time, only if, as and when provided in, and subject to, upon and in accordance with, the provisions of this Promissory Note. CONSIDERATION This Promissory Note is given in consideration and exchange for the Releases attached as Exhibit A (the "Releases") hereto relating to a dispute regarding NIKOLIC's and SCHWARTZ's respective interests, rights and obligations with respect to Biosys Capital Partners, LP (the "Fund") and the Fund's investment in the amount of One Million Dollars ($1,000,000) in Blue Talon Data Systems, Inc. and Three Million Dollars ($3,000,000) in Digisight Technologies, Inc. (collectively, the "Portfolio Companies"). Upon the realization of the Fund's investments in the Portfolio Companies, subject to and in accordance with the Fund's operative documents, the Fund's general partner, Biosys Capital Management, LLC (the "GP"), from time to time may receive from the Fund distributions, in cash or in kind, in respect of the GP's carried interest in the Fund relating to such investments. In the event such distributions of carried interest are made to the GP, subject to and in accordance with the operative documents of the GP, NIKOLIC, as a principal of the GP, from time to time may receive from the GP distributions, in cash or in kind, of the GP's carried interest distributions from the Fund in respect of the Fund's investments in the Portfolio Companies. Each such distribution to NIKOLIC from the GP is herein referred to as a "Carried Interest Distribution". This Promissory Note is intended to memorialize NIKOLIC's obligation, in consideration and exchange for the Releases, to pay to SCHWARTZ, in cash or in kind, at NIKOLIC's discretion, 50% of each Carried Interest Distribution NIKOLIC receives