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The Purpose of a Graphics Card

Nama : Rio Prayoga
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The graphics card in your office PC converts video data into electronic signals and sends them to your monitor. The monitor accepts the graphics card signals and turns them into colorful images. The process happens fast enough to handle videos, games and other media. All standard desktop and notebook computers have some form of graphics card.



Description

A graphics card is a set of computer chips on a circuit board roughly the size of an index card. The chips are dedicated to a single task: to take video data from the PC's processor and convert it to signals for your monitor. Though most computers have graphics chips built into the motherboard, their capabilities are usually basic. Graphic designers, gamers and multimedia enthusiasts typically purchase more sophisticated graphics cards; these plug into the motherboard and deliver faster graphics processing and better image quality.

Motherboard Interface

Graphics cards connect to a standard motherboard slot, such as the Peripheral Component Interface, PCI Express or Accelerated Graphics Port. The type of slot determines the speed at which the card communicates with the computer's processor; the faster this happens, the more data they can exchange, resulting in an better image. In 2012, the PCI Express standard is the fastest, able to transfer up to 7.8GB per second. As with all computer technology, these standards evolve and improve with time.

Monitor Interface

The graphics card has one or more connectors that accept the monitor cable. Monitors have a few different standard cable types, including VGA, HDMI and DVI. VGA is the oldest standard, going back to the 1980s and supporting basic graphics with a resolution of 640 by 480 pixels and up to 256 colors. High-definition televisions and monitors use the HDMI connector. Currently, computer monitors have the DVI connector, which supports digital video with resolutions up to 1,920 by 1,080 pixels.

GPU

Producing accurate graphical images is a mathematically intensive task; each frame in a three-dimensional image simulation takes millions of calculations. A computer's microprocessor is usually busy with other work, so the graphics card handles this. The card has a chip called a Graphics Processor Unit, a microprocessor specialized for video calculations. The GPU lets the computer's main processor do its job, allowing the computer to run at full speed.

VRAM

The graphics card's GPU has its own memory, called Video RAM. It serves as a temporary holding area for video data as the GPU generates each image. Because the graphics card doesn't need to share memory with the main processor, VRAM improves the computer's overall performance. Because it processes hundreds of millions of bytes of video data every second, VRAM is fast and tends to be more expensive than standard memory.

Sumber : http://smallbusiness.chron.com/purpose-graphics-card-55327.html

MENCARI KATA PADA ARTIKEL (BAHASA INGGRIS 2)

Secretary Kerry to revisit Vietnam War before Obama trip
Paul J. Weber | Associated Press | Austin, Texas, US 
Posted: Mon, April 25 2016 | 06:03 pm

Before joining President Barack Obama on his first trip toVietnam next monthSecretary of State John Kerry will take a day to reflect on his long and complicated history with the Asian country, first as a soldier and later as a war protester and statesman.
Kerry, who will accompany Obama in May when he becomesthe third consecutive US president to visit Vietnam, isheadlining a gathering this week of big names assembled to again revisit the Vietnam War at the presidential library of Lyndon B. Johnson in Austin. The summit begins Tuesday and ends just before the 41st anniversary of the fall of Saigon, on April 30.
Former Secretary of State Henry Kissinger, documentary filmmaker Ken Burns and news anchor Dan Rather will alsoattend. Kerry, who fought with distinction in Vietnam before returning home to protest the war, is scheduled to sit down with Burns, who has been filming a 10-part series about the conflict.
"Vietnam is very personal for John Kerry," said Mark Updegrove, director of the LBJ library. "I can't imagine that he won't use this opportunity to talk about his experience not only on both sides of the war, over four decades ago, but also as secretary of state in forging better relations with the very country that he went to war" against.
The event comes a year after the LBJ library brought four of the five living US presidents — all but George H.W. Bush — to Austin to celebrate the 50th anniversary of the Civil Rights Act, which Johnson championed.
Updegrove said that Kissinger, who was awarded the Nobel Prize for negotiating the American military withdrawal from Vietnam, has asked for a candid discussion. Kissinger, now 92, has long had detractors who considered him a war criminal for US actions that included bombings in Cambodia that killed scores of civilians.
Other panelists include former US Sen. Bob Kerrey and former Naval commander William McRaven, the former head of US Special Operations Command who directed the raid that killed Osama Bin Laden. Reporter Peter Arnett and photojournalist Nick Ut, who covered the war for The Associated Press, will also discuss the impact that news coverage had on the war.

Keterangan :
Hijau : Subject
Biru : Verb
Ungu : Complement
Merah : Modifier

Sumber :
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