Smart phone: A smartphone is a mobile phone with an advanced mobile operating system which combines features of a personal computer operating system with other features useful for mobile or hand held use. Smartphones, which are usually pocket-sized, typically combine the features of a cell phone, such as the ability to receive and make phone calls, with those of other popular digital mobile devices. Other features typically include a personal digital assistant (PDA) for making appointments in a calendar, media player, video games, GPS navigation unit, digital camera and digital video camera. A typical smartphone has a high-resolution touch screen display, WiFi connectivity, Web browsing capabilities, and the ability to accept sophisticated applications. The majority of these devices run on any of these popular mobile operating systems: Android, Symbian, iOS, BlackBerry OS and Windows Mobile.
A typical smart phone will a more powerful CPU, more storage space, more RAM, greater connectivity options and larger screen resolutions than a regular cell phone.
High-end smart phones now run on processors with high processing speeds and allow you to play 3D games, video conferencing, and other processor/memory intensive tasks longer than you used to.
Features often found in smart phones
Tablets: A tablet, or tablet PC, is a portable computer that uses a touchscreen as its primary input device. Most tablets are slightly smaller and weigh less than the average laptop. While some tablets include fold out keyboards, others, such as the Apple iPad and Motorola Xoom, only offer touchscreen input.