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.
Booking Your Travel Needs with Paypal. All of the above travel agencies, companies and websites accept Paypal and you can use it to pay for your online reservation. If you prefer to use an alternative payment method - no problem. The above online agents take most credit cards, so you're free to use the payment method of your choice.