Other features of the desktop does not fully exist in the laptop include expansion devices such as DVD burners, and bigger and better drives. There are rooms in the larger desktop to these devices, but the laptop must be either an external connection, or use hot-swappable drives, may, for example, a CD / DVD drive be pulled out and replaced with a floppy drive or hard drive. The standard in the early days, PCMCIA card (Personal Computer Memory Card International Association), later known asbe the PC card used for many different types of external connections from network adapters to different drives, modems, etc.