Android encyclopedia: A is for..

Oliver Hill

The first installment of our Android encyclopedia. A is for..


The term AMOLED is used to describe a certain display technology commonly found in mobile devices. Less affectionately known as Active Matrix Organic Light Emitting Display, AMOLED screens tend to be extremely thin and use less power than other screens that we see on Android devices.

Each pixel that makes up an AMOLED screen creates its own light, meaning that phones that utilise the

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technology don’t require a backlight.

Variants of the AMOLED technology are starting to appear in the mobile market, with Samsung using their Super AMOLED, Super AMOLED Plus and HD Super AMOLED in Galaxy S2, Droid Charge and Galaxy Note devices.

The technical bit

An AMOLED display consists of an active matrix of, primarily, OLED pixels that omit light upon electrical activation. Thin film transistors (TFT) are placed behind this layer of pixels, with roughly two TFT’s controlling a pixel. Having the how to save money on car repairs right amount of TFT’s controlling the pixels keeps the electrical current flowing to each pixel working.


The .apk file format is used to distribute and install apps on to your Android device. Compiling an .apk file consists of packaging your app and all its related certificates and resources into one file.

Android Market

The Android Market is home to the thousands upon thousands of apps we download everyday. The growth of the market has been remarkable, and we celebrated the 10 billionth download only 2 months ago.

Over 190 countries have been busy downloading from the Android Market, and recent stats show that South Korea, Hong Kong and Taiwan are the most app-crazed countries.

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