Thruster owns ID Data, Inc., a small company that manufactures facial recognition kits. The pocket size kits feature a button camera connected to a PDA. The camera automatically takes the facial measurements of approaching individuals, compares it to a data base on the PDA, and provides information to the wearer as to identity and other relevant material. Police departments, politicians, and the Department of Defense have ordered multiple units. Now Thruster wants to expand his operations. What types of promissory notes will be useful when:

a. ID Data borrows $150,000 out of the $200,000 needed to pay for a shipment of integrated circuit chips for the PDAs and uses the chips as security for payment?

b. ID Data borrows $650,000 out of the $1,000,000 needed to buy a building for a new assembly line and uses the real property as security for payment?