A gadget - a new, often expensive, and relatively unknown hardware device or accessory that makes your life or the use of another device easier or more enjoyable.A laptop - a portable computer that has most, or all, of the same abilities as a desktop, but is small enough for easy mobility.A tablet PC - a small wireless mobile computing device that is typically the size of a book and resemble a large smartphone.A blackberry - a mobile communications device that can be used like a cellphone and a personal digital assistant.A key - a single button on the keyboard.A USB flash drive - a portable storage device.