hardware

•  Smartphone

 A smartphone (or smart phone) is a mobile phone with more advanced computing capability and connectivity than basic feature phones.
 Early smartphones typically combined the features of a mobile phone with those of another popular consumer device, such as a personal digital assistant (PDA), a media player, a digital camera, and/or a GPS navigation unit. Later smartphones include all of those plus the features of a touchscreen computer, including web browsing, Wi-Fi, and 3rd-party apps.
 http://en.wikipedia.org/wiki/Smartphone

•  iPod Touch

 The iPod Touch (stylized and marketed as iPod touch) is a multi-purpose pocket computer designed and marketed by Apple Inc. with a user interface that is touchscreen-based. It can be used as a music and video player, digital camera, handheld game device, and personal digital assistant (PDA).It connects to the Internet through Wi-Fi base stations and is therefore not a smartphone, though its design and iOS operating system are very similar to Apple's iPhone.
 http://en.wikipedia.org/wiki/IPod_Touch

•  iPhone

 a line of smartphones designed and marketed by Apple Inc.
 It runs Apple's iOS mobile operating system
 There are seven generations of iPhone models, each accompanied by one of the six major releases of iOS.
 http://en.wikipedia.org/wiki/IPhone

•  A Chromebook is a laptop running Chrome OS as its operating system. The devices are designed to be used primarily while connected to the Internet, with most applications and data residing "in the cloud". A Chromebook is an example of a thin client.

http://en.wikipedia.org/wiki/Chromebook

• iPad

a line of tablet computers designed and marketed by Apple Inc. which runs Apple's iOS.
The user interface is built around the device's multi-touch screen, including a virtual keyboard.
The iPad has built-in Wi-Fi and, on some models, cellular connectivity
An iPad can shoot video, take photos, play music, and perform Internet functions such as web-browsing and emailing. Other functions—games, reference, GPS navigation, social networking, etc.—can be enabled by downloading and installing apps.
http://en.wikipedia.org/wiki/IPad

• iPad Mini

a line of mini tablet computers designed, developed, and marketed by Apple Inc
It is a sub-series of the iPad line of tablets, with a reduced screen size of 7.9 inches, in contrast to the standard 9.7 inches
http://en.wikipedia.org/wiki/IPad_Mini

• Google Nexus

a line of consumer electronic devices that run the Android operating system.
The product family consists mostly of mobile devices—five smartphones and three tablet computers
the devices currently available in the line are the Nexus 5 smartphone (made with partner LG Electronics), second generation Nexus 7 tablet (made with Asus), and Nexus 10 tablet (made with Samsung).
Nexus devices are the first Android devices to receive updates to the operating system.
http://en.wikipedia.org/wiki/Google_Nexus

• Kindle Fire

The Kindle Fire is a mini tablet computer version of Amazon.com's Kindle e-book reader.
Kindle Fire has a color 7-inch multi-touch display with IPS technology and runs a custom version of Google's Android operating system called Fire OS.
The device—which includes access to the Amazon Appstore, streaming movies and TV shows, and Kindle's e-books
http://en.wikipedia.org/wiki/Kindle_Fire

• Tablet computer

A tablet computer, or simply tablet, is a mobile computer with display, circuitry and battery in a single unit. Tablets are equipped with sensors, including cameras, microphone, accelerometer and touchscreen, with finger or stylus gestures replacing computer mouse and keyboard. Tablets may include physical buttons, e.g., to control basic features such as speaker volume and power and ports for network communications and to charge the battery. An on-screen, pop-up virtual keyboard is usually used for typing. Tablets are typically larger than smart phones or personal digital assistants at 7 inches (18 cm) or larger, measured diagonally
http://en.wikipedia.org/wiki/Tablet_computer

• personal digital assistant (PDA)

A personal digital assistant (PDA), also known as a palmtop computer, or personal data assistant, is a mobile device that functions as a personal information manager. PDAs are largely considered obsolete with the widespread adoption of smartphones.
Nearly all current PDAs have the ability to connect to the Internet. A PDA has an electronic visual display, enabling it to include a web browser, all current models also have audio capabilities enabling use as a portable media player, and also enabling most of them to be used as mobile phones. Most PDAs can access the Internet, intranets or extranets via Wi-Fi or Wireless Wide Area Networks. Most PDAs employ touchscreen technology.
http://en.wikipedia.org/wiki/Personal_digital_assistant

• laptop

A laptop is a portable personal computer with a clamshell form factor, suitable for mobile use.They are also sometimes called notebook computers or notebooks
http://en.wikipedia.org/wiki/Laptop