A machine which enables sales without the physical presence of sales attendant is a

The machine which enables sales without the physical presence of a sales attendant is called a vending machine. A vending machine is an automated machine that dispenses a variety of products such as snacks, beverages, cigarettes, lottery tickets, and even electronics like smartphones and laptops. It works by accepting payment from the customer, usually in the form of cash or a credit/debit card, and then dispensing the requested product. The advantage of vending machines is that they allow customers to purchase products 24/7 without the need for a sales attendant to be present. This makes them a convenient and efficient way to purchase goods in public places such as airports, train stations, shopping malls, and office buildings. Additionally, vending machines can help reduce labor costs for businesses by eliminating the need for a sales staff.