Android phones more popular than iPhones

Google gives its app developers more freedom than Apple does, and the Android operating system is available from many more carriers and on many more phones than Apple's iPhone operating system, reports Discovery News.

But most importantly, Android phones cost less, with some being given away for free with a two-year contract.
According to Nielsen, Blackberry still holds the dominant share with 31 percent of the market, though its lead over Apple is declining.

Twenty-eight percent of smartphone owners have Apple iPhones, and 19 percent have Android devices

RTL meaning in digital domain

Register transfer level

In integrated circuit design, register transfer level (RTL) is a level of abstraction used in describing the operation of a synchronous digital circuit. In RTL design, a circuit's behavior is defined in terms of the flow of signals (or transfer of data) between hardware registers, and the logical operations performed on those signals.

Register transfer level abstraction is used in hardware description languages (HDLs) like Verilog and VHDL to create high-level representations of a circuit, from which lower-level representations and ultimately actual wiring can be derived.

Resistor–transistor logic

Resistor–transistor logic (RTL) is a class of digital circuits built using resistors as the input network and bipolar junction transistors (BJTs) as switching devices. RTL is the earliest class of transistorized digital logic circuit used; other classes include diode–transistor logic (DTL) and transistor–transistor logic (TTL).

Booth's multiplication algorithm

Booth's multiplication algorithm

Booth's multiplication algorithm is a multiplication algorithm that multiplies two signed binary numbers in two's complement notation. The algorithm was invented by Andrew Donald Booth in 1951 while doing research on crystallography at Birkbeck College in Bloomsbury, London. Booth used desk calculators that were faster at shifting than adding and created the algorithm to increase their speed. Booth's algorithm is of interest in the study of computer architecture.