Techopedia explains Optical Drive. Although an optical drive can be used to read and write, it is mainly used as an input device. The functionality of an optical drive is dependent on optical disks. In other words, an optical drive is of no use without an optical disk inserted into it.
PayPal is one of the world's largest internet payment companies. The company operates as an acquirer, performing payment processing for online vendors, auction sites and other commercial users, for which it charges a fee.hrough PayPal, users can send or receive payments for online auctions on websites like eBay, purchase or sell goods and services, or donate money or receive donations. It is not necessary to have a PayPal account to use the company's services.
Levchin stumbled on the need for an eBay auction currency -- a small part of Confinity's service -- but a large pain point for customers. With help from Xoom, PayPal created a solution that enabled customers to pay for online auctions and did it better than the competition. Using these three principles, you should be able to find a product and market segment from which your startup's growth will spring.