A cash drawer is a secure, lockable compartment used toPOS POS Terminal a store cash, coins, and other payment-related items at point-of-sale (POS) stations. It is typically integrated with a POS system or receipt printer and opens automatically during sales transactions to facilitate secure cash handling. Durable Construction: Made of heavy-duty steel or metal for enhanced security and longevity. Compartments: Multiple coin and bill slots (often adjustable) for organized storage.

Radio-frequency identification (RFID) uses electromagnetic fields to automatically identify and track tags attached to objects. The tags contain electronically stored information. Passive tags collect energy from a nearby RFID reader's interrogating radio waves. Active tags have a local power source such as a battery and may operate at hundreds of meters from the RFID reader. Unlike a barcode, the tag need not be within the line of sight of the reader, so it may be embedded in the tracked object.

Barcode labels are optical machine-readable representation of data in relation to the object applied on. We witness its large scale usage in pharmaceutical, retail industry, export-import industry. It helps in keeping data electronically in system and saves immense time and energy. It has print of represented data by varying the width and spacing of parallel lines. It has been widely accepted method. Its need is widely felt mostly in billing processes throughout the world, and its accuracy is unmatchable.