What is Cloud Computing?

Cloud computing is Internet-based computing, whereby shared resources, software, and information are provided to computers and other devices on demand, like the electricity grid.

Make and receive calls in Gmail

Google Voice lets you manage all your phone communications and seamlessly make and receive calls on any of your existing phones. But what if you don’t have your phone with you? Or what if you’re in a place with poor cell phone reception, or you’re traveling internationally and don’t want to incur expensive roaming charges? Wouldn’t it be great if you could use your computer to make or receive calls? Starting today you can use Gmail to receive or place Google Voice calls. To get started, check the box next to Google Chat in your list of forwarding phones and the next time someone calls your Google Voice number, Gmail will notify you of an incoming call. You can take the call or even listen in as the caller leaves a message, in a single step right from your computer.

iPad

Apple iPad

The iPad is a tablet computer developed by Apple Inc. It features multi-touch interaction with print, video, photo, and audio multimedia, internet browsing, and runs most iPhone OS apps. The device has an LED-backlit 9.7-inch (25 cm) color LCD display and uses a virtual keyboard for text input. Prices for models in the United States range from $499 to $829 depending on the amount of storage and inclusion of 3G access.

Hardware specifications of Apple iPad

Model	Early 2010
Announce date	January 27, 2010
Color display	9.7 inches (25 cm) LED backlit in-plane switching LCD, made by Innolux, a subsidiary of Foxconn[2][15][16]
Processor	1 GHz Apple A4 system-on-a-chip[2][3]
Graphics	1024×768 pixel (XGA resolution), 20cm × 15cm, 132ppi
Storage	16, 32 or 64 GB flash memory
Wireless	Integrated 802.11a/b/g/n and Bluetooth 2.1 + EDR
3G Internet	7.2 Mbps HSDPA
Operating system	iPhone OS
Battery	Built-in lithium-polymer 25 W·h (10 h usage, 1 month standby)
Weight	1.5 pounds (680 g), 1.6 pounds (730 g) (3G Model)
Dimensions	9.56 inches (24.3 cm) x 7.47 inches (19.0 cm) x 0.5 inches (1.3 cm)

Google Nexus One

Nexus One

The Nexus One is a smartphone from Google that uses the Android open source mobile operating system. The device is manufactured by Taiwan's HTC Corporation, and became available on January 5, 2010. Features of the phone include the ability to transcribe voice to text, noise canceling dual microphones, and voice directions while driving.



Software : Android (operating system)

The Nexus One runs the Google Android 2.1 operating system, codenamed 'Eclair'. The 2.1 firmware version of the Android operating system adds a few aesthetic changes such as "Live Wallpapers" which are animated in the background and react to different user inputs. Android-based phones have access to more than 18,000 applications. It also replaces the "Application Drawer" with a single button which can be pressed to access the list of applications installed on the phone. This thumbnail list can be scrolled up and down and as it's scrolled, the applications roll up into a 3D cube instead of disappearing from the screen. Once the bottom of the application thumbnail list is hit, the screen bounces off similar to the iPhone functionality.




Android (operating system)

Android is a mobile operating system running on the Linux kernel. It was initially developed by Android Inc., a firm later purchased by Google, and lately by the Open Handset Alliance. It allows developers to write managed code in the Java language, controlling the device via Google-developed Java libraries.

Software development kit

The Android SDK includes a comprehensive set of development tools. These include a debugger, libraries, a handset emulator (based on QEMU), documentation, sample code, and tutorials. Currently supported development platforms include x86-architecture computers running Linux (any modern desktop Linux distribution), Mac OS X 10.4.8 or later, Windows XP or Vista. Requirements also include Java Development Kit, Apache Ant, and Python 2.2 or later. The officially supported integrated development environment (IDE) is Eclipse (3.2 or later) using the Android Development Tools (ADT) Plugin, though developers may use any text editor to edit Java and XML files then use command line tools to create, build and debug Android applications as well as control attached Android devices (e.g., triggering a reboot, installing software package(s) remotely).

Android Applications are packaged in .apk format and stored under /data/app folder on the Android OS. The user can run the command adb root to access this folder as only the root has permissions to access this folder.