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Data

Data (/ˈdeɪtə/ DAY-tə, /ˈdætə/ DA-tə, or /ˈdɑːtə/ DAH-tə) is a set of values of qualitative or quantitative variables; restated, pieces of data are individual pieces of information. Data is measured, collected and reported, and analyzed, whereupon it can be visualized using graphs or images. Data as a general concept refers to the fact that some existing information or knowledge is represented or coded in some form suitable for better usage or processing.

Raw data, i.e. unprocessed data, is a collection of numbers, characters; data processing commonly occurs by stages, and the "processed data" from one stage may be considered the "raw data" of the next. Field data is raw data that is collected in an uncontrolled in situ environment. Experimental data is data that is generated within the context of a scientific investigation by observation and recording.

The Latin word "data" is the plural of "datum", and still may be used as a plural noun in this sense. Nowadays, though, "data" is most commonly used in the singular, as a mass noun (like "information", "sand" or "rain").

Sony Xperia

Xperia is a family of smartphones and tablets from Sony Mobile. The name Xperia is derived from the word "experience", and was first used in the Xperia X1 tagline, "I (Sony Ericsson) Xperia the best".

History

The Xperia X1 was the first phone to be released in the Xperia range. Released 2008, it featured a high resolution display (~311 ppi pixel density) and it was intended to fill the widening gap of smartphones as other competitors were producing high-end smartphone devices such as HTC and Apple. The X2 was released in the following year, which included an 8.1 MP camera and included Wifi and GPS. By this time there was a clear shift towards the smartphone end of the spectrum. An exception was the Xperia Pureness, a translucent phone without camera that was sold by selected retailers in selected cities. The Xperia X5 Pureness is based on Sony Ericsson’s proprietary operating system (OSE).

The X10 was released at the start of 2010. It was the first in the Xperia line to feature the Android operating system, where previous models ran on the Windows Mobile OS. The phone was praised on its design, but its downfall was the outdated version of Android which was 1.6 at a time when competitors were on 2.1. There was a great delay in the update of the firmware, due to the heavily skinned OS, as well as Timescape and Mediascape which needed to be reprogrammed every time an update was made. The phone also lacked pinch to zoom, but this was added later as well as HD video recording. The X10 Mini and the X10 Mini Pro were, as the name suggests, miniature versions of the X10. These were welcomed with good response and proved to be very popular as there were no other smartphones on the market at that time which were as small as the two.

Sony Xperia Z2

The Sony Xperia Z2 is an Android smartphone manufactured by Sony and released in April 2014. Under the codename "Sirius", Xperia Z2 serves as the successor to the Sony Xperia Z1. Like its predecessor, the Xperia Z2 is water and dust proof with an IP rating of IP55 and IP58. The phone features a new IPS LED display, a Snapdragon 801 processor and the ability to record 4K videos. The Xperia Z2 also allows removable microSD storage.

It was unveiled alongside the Sony Xperia Z2 Tablet and the Sony Xperia M2 during the 2014 Mobile World Congress in Barcelona, Spain, on February 24, 2014, and was first released in Taiwan on March 24, 2014, in Singapore on April 5, 2014, and entered more markets between April and May 2014. In the United States, the Xperia Z2 was released unlocked through the Sony Store on July 21, 2014.

Many reviewers praised the phone's screen, camera and waterproof design, but criticized its size and some camera software issues.

Design

Similar to the devices under the Sony Xperia Z series, the Xperia Z2 has an "Omni-Balance", according to Sony, which is focused on creating balance and symmetry in all directions. The phone comes with the same aluminium frame as its predecessor. It also features tempered glass on the front and back with an aluminium power button placed on the right hand side of the device.

LG G3

LG G3 is an Android smartphone developed by LG Electronics. First released in South Korea on May 28, 2014, it is a successor to 2013's LG G2. Inheriting design elements from the G2, such as its thin screen bezels and rear-mounted power and volume buttons, the G3 is distinguished primarily by being the first smartphone from a major manufacturer to incorporate a quad HD (1440p) display, and its inclusion of an infrared hybrid autofocus system for its camera. LG also touted the device's plastic "metallic skin"—designed to give the device a higher quality appearance, and a "simpler" user interface with an integrated intelligent personal assistant system.

The G3 received mostly positive reviews, with critics praising the overall appearance, performance, and software of the device. However, several aspects of the G3 received mixed reviews, including the company's decision to use a faux metallic plastic instead of actual metal, and the high resolution display which was criticized for artificial sharpening and poor brightness while negatively affecting battery life.