Consider the following scenario:
Your store has 4 computers connected via a Local Area Network. You plan on installing Microsoft Point of Sale on each computer to perform the following tasks:
Computer 1: Primary Point of Sale register
Computer 2: Secondary Point of Sale register used during weekends and holidays
Computer 3: Back office machine used to print reports, enter items, and create Purchase Orders
Computer 4: Back office macine used to receive purchase orders and update inventory
Considering this setup, how many licenses of Microsoft Point of Sale must you purchase?