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Initially intended for use by computer monitors and video cards, the standard made its way into consumer televisions. The parameters defined by standard include horizontal blanking and vertical blanking intervals, horizontal frequency and vertical frequency (collectively, pixel clock rate or video signal bandwidth), and horizontal/vertical sync ...
The original FreeSync is based over DisplayPort 1.2a, using an optional feature that VESA terms Adaptive-Sync. [ 9 ] [ 10 ] This feature was in turn ported by AMD from a Panel-Self-Refresh (PSR) feature from Embedded DisplayPort 1.0, [ 11 ] which allows panels to control its own refreshing intended for power-saving on laptops. [ 12 ]
Vertical synchronization or Vsync can refer to: Analog television#Vertical synchronization, a process in which a pulse signal separates analog video fields; Screen tearing#Vertical synchronization, a process in which digital graphics rendering syncs to match up with a display's refresh rate; Vsync (library), a software library written in C# for ...
A vertical blank interrupt (or VBI) is a hardware feature found in some legacy computer systems that generate a video signal.Cathode-ray tube based video display circuits generate vertical blanking and vertical sync pulses when the display picture has completed and the raster is being returned to the start of the display.
Apple introduced the Safari web, on January 7, 2003. At the time, Steve Jobs called Safari, “a turbo browser for Mac OS X.” Apple created Safari for speed, calling it the fastest browser for the Mac. Jobs compared it to Internet Explorer, Netscape, and Chimera (later renamed Camino), showing that Safari was faster.
During the vertical blanking interval, the driver orders the video card to either rapidly copy the off-screen graphics area into the active display area (double buffering), or treat both memory areas as displayable, and simply switch back and forth between them (page flipping).
The standard NTSC video image contains some lines (lines 1–21 of each field) that are not visible (this is known as the Vertical Blanking Interval, or VBI); all are beyond the edge of the viewable image, but only lines 1–9 are used for the vertical-sync and equalizing pulses. The remaining lines were deliberately blanked in the original ...
Mac OS X Server 10.5 – also marketed as Leopard Server; Mac OS X Server 10.6 – also marketed as Snow Leopard Server; Starting with Lion, there is no separate Mac OS X Server operating system. Instead the server components are a separate download from the Mac App Store. Mac OS X Lion Server – 10.7 – also marketed as OS X Lion Server