Bonus means

Bonus may also refer to:

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In the sport of basketball, the bonus situation (also called the penalty situation) occurs when one team accumulates a requisite number of fouls, which number varies depending on the level of play. When one team has committed the requisite number of fouls, each subsequent foul results in the opposing team's taking free throws regardless of the type of foul committed (i.e., whether or not the foul was a shooting foul). Teams under the limit are commonly referred to as having fouls to give, and thus they can try to disrupt their opponents without being penalized free throws.

FIBA

Under FIBA rules, used for all competitions involving international teams and most leagues outside the U.S., the penalty is triggered when a team commits more than four fouls in a quarter; the fifth and subsequent team fouls will incur penalty free throws. All subsequent non-shooting defensive fouls committed by that team in the same quarter concede two free throws. All fouls committed by players count towards the team foul count.

Bonus (Ancient Greek: Βῶνος or Βόνος, died 627) was a Byzantine statesman and general, one of the closest associates of Emperor Heraclius (r. 610–641), who played a leading role in the successful defense of the imperial capital, Constantinople, during the Avar–Persian siege of 626.

Biography

Almost nothing is known of Bonus's origins or private life. In a panegyric poem dedicated to Bonus in 626, George Pisides calls him a "companion in arms" of Heraclius, possibly implying that Bonus accompanied him when he sailed from Africa in 610 to overthrow Emperor Phocas (r. 602–610). He is also known to have had an illegitimate son, John, who was sent as a hostage to the Avars in 622.

At this time, the Byzantine Empire was engaged in a prolonged struggle with its large eastern antagonist, the Sassanid Persian Empire. Over the previous twenty years, Persian armies had scored victory after victory and captured most of the Byzantine Levant. In 622, after securing peace with the Avars in the Balkans, Heraclius set out to campaign in person against the Persians. Bonus was left behind in Constantinople as the Emperor's deputy and guardian of his young sons, together with Patriarch Sergius. During Heraclius's absence on campaign for the next years, Bonus acted as the effective regent of the Byzantine Empire.

Quartz is the second-most-abundant mineral in Earth's continental crust, after feldspar. Its crystal structure is a continuous framework of SiO₄silicon–oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO₂.

There are many different varieties of quartz, several of which are semi-precious gemstones. Since antiquity, varieties of quartz have been the most commonly used minerals in the making of jewelry and hardstone carvings, especially in Europe and the Middle East.

Etymology

The word "quartz" is derived from the German word "Quarz" and its Middle High German ancestor "twarc", which probably originated in Slavic, cf. Czech tvrdý ("hard"), Polish twardy ("hard"), Serbian and Croatian tvrd ("hard").

The Ancient Greeks referred to quartz as κρύσταλλος (krustallos) derived from the Ancient Greek κρύος (kruos) meaning "icy cold", because some philosophers (including Theophrastus) apparently believed the mineral to be a form of supercooled ice. Today, the term rock crystal is sometimes used as an alternative name for the purest form of quartz.

In Apple computer's OS X operating system, Quartz is the Quartz 2D and Quartz Compositor part of the Core Graphics framework. Quartz includes both a 2D renderer in Core Graphics and the composition engine that sends instructions to the graphics card. Because of this vertical nature, Quartz is often synonymous with Core Graphics.

In a general sense, Quartz or Quartz technologies can refer to almost every part of the Mac OS X graphics model from the rendering layer down to the compositor including Core Image and Core Video. Other Apple graphics technologies that use the "Quartz" prefix include:

Quartz 2D & Quartz Compositor

Quartz 2D is the primary two-dimensional (2D) text and graphics rendering library: It directly supports Aqua by displaying two-dimensional graphics to create the user interface, including on-the-fly rendering and anti-aliasing. Quartz can render text with sub-pixel precision; graphics are limited to more traditional anti-aliasing, which is the default mode of operation but can be turned off. In Mac OS X v10.4, Apple introduced Quartz 2D Extreme, which allows Quartz 2D to use supported GPUs for rendering. In Mac OS X 10.4, Quartz 2D Extreme is not enabled by default, because it may lead to video redraw issues or kernel panics. As of Mac OS X v10.5 Quartz 2D Extreme has been renamed to QuartzGL. However, it still remains disabled by default, as there are some situations where it can degrade performance, or experience visual glitches; it is a per-application setting which can be turned on if the developer wishes.

A crystal oscillator is an electronic oscillator circuit that uses the mechanical resonance of a vibrating crystal of piezoelectric material to create an electrical signal with a precise frequency. This frequency is commonly used to keep track of time, as in quartz wristwatches, to provide a stable clock signal for digital integrated circuits, and to stabilize frequencies for radio transmitters and receivers. The most common type of piezoelectric resonator used is the quartz crystal, so oscillator circuits incorporating them became known as crystal oscillators, but other piezoelectric materials including polycrystalline ceramics are used in similar circuits.

Quartz crystals are manufactured for frequencies from a few tens of kilohertz to hundreds of megahertz. More than two billion crystals are manufactured annually. Most are used for consumer devices such as wristwatches, clocks, radios, computers, and cellphones. Quartz crystals are also found inside test and measurement equipment, such as counters, signal generators, and oscilloscopes.