he Samsung Galaxy Tab model SPH-P100 tablet was released by Samsung in September 2010 as an entry-level Android tablet. The primary focus of the P100 series of Samsung tablets was to offer inexpensive mobile computing and connectivity, primarily through media streaming and video chat. The Samsung Galaxy Tab is built around the Android OS. With a measurement of 7.5 inches at its widest, the SPH-P100 is extremely small, light, and portable. The Galaxy Tab uses Android OS 2.2, but it can be upgraded to Android 3.0. Built in coordination with Sprint, it can access the Sprint data network via the installation of the appropriate mini-SIM card. The system also has a Sprint-exclusive software installed, which is primarily centered around optimizing the device's connection to the Sprint CDMA cellular network.The Samsung Galaxy Tab is built around the Hummingbird chipset that was developed by Google and Samsung for use in mobile phones and tablets. The system uses a 1.0 GHz Cortex-A8 CPU that's assisted by a PowerVR SGX540 GPU for graphical processing. The PowerVR SGX540 has been designed and tuned for optimizing video playback, especially streaming video from Google's YouTube service. The system is equipped with 444MB of RAM. 2GB of Flash memory is included in the system, with the option to include up to 32GB more via the MicroSD card slot. The system has a rechargeable 4000 mAh lithium-polymer battery that can last up to eight hours on a charge, and it can be recharged through the system's Micro USB port. The Micro USB port can also be used to tether the device to computers and accessories which require a physical connection. Wireless Internet connection is achieved with either an 802.11 b/g/n connection or via an HSUPA 5.76 Mbit/s cellular antenna. WiFi hotspot capability is included, as is Bluetooth connectivity for enabled wireless accessories.The Galaxy Tab has a seven-inch screen with multi-touch capability. It's made out of high-strength Gorilla Glass to improve longevity and durability. The display is 600x1024 pixels and offers a ~170 PPI pixel density. A 3.2MP AF camera with LED flash is located on the back, supplemented by a 1.3MP front-facing camera that's optimized for video calls. The Galaxy Tab is optimized for use with the Android operating system and comes equipped with a full suite of Google Apps. Most notably, the Search app is integrated directly into the device, enabling users to search at any time via voice commands. Samsung Galaxy is capable of opening almost any type of media files, including DivX, XviD, MPEG4, H.263, and H.264. An integrated Chrome browser can open multiple tabs at a time and enable users to close each tab selectively. This tablet is capable of alerting users to check their messages via .wav or .mp3 ringtones, and it also has a vibrate function.This device is an excellent, lightweight, and highly portable tablet that's ideal for mobile communications and streaming. The Galaxy Tab can have data input via Bluetooth accessories, speech-to-text commands, or the onboard screen keyboard. This makes it a great solution for vacationers, students, and those who need a highly portable tablet to keep in touch.