Graphics card is one of the most important components of our computer, which directly affects the fluency and image display of the computer. So do you know what the use of graphics card is? Do you know how to judge a video card? Unclear partners, you can read the following to understand the graphics card knowledge!
What is a graphics card?
Graphics card is also called video card, video adapter, graphics card, graphics adapter, display adapter and so on. It is the "bridge" between the host and the display. Its function is to control the graphics output of the computer. It is responsible for processing the image data sent by the CPU into the format recognized by the display, and then sent to the display to form an image.
Generally speaking, the graphics card mainly has two functions: displaying and processing images. Its principle is that the graphics card is connected to the computer motherboard, which converts the computer's digital signal into analog signal for display; At the same time, the graphics card has image processing ability to assist the CPU and improve the overall running speed.
In short, whether it is a computer or mobile phone, the screen image quality display of the display depends on the graphics card. Although many computers or mobile phones do not have independent graphics cards, they at least integrate the core graphics card in the CPU or motherboard. It can be said that the graphics card determines the screen display. If the computer does not have a graphics card, there will be no image display on the screen.
What's the use of a graphics card?
As mentioned above, the graphics card mainly has two functions of displaying and processing images, but the graphics card is also divided into good and bad. The high-end graphics card can bring better display and graphics processing, drive a larger display screen, and bring better advantages of "better image quality" and "faster speed". Some large-scale games or professional software usually need to be equipped with a better independent graphics card because of the high requirements for image quality.
If you just watch network TV and play some simple games, the current CPU integrated core graphics card can meet the demand.
How do you think the graphics card is good or bad?
Although there are many graphics card brands at present, the core technology of independent graphics cards is mainly controlled by NVIDIA and AMD. Graphics card manufacturers need to buy graphics card chips from these two chip manufacturers for packaging. The only difference is workmanship, heat dissipation and brand.
Add: computer practical skills can not be missed
Press and hold the windows + L key to quickly lock the screen, and press and hold the windows + e key to turn on the computer.
Press and hold windows + D to quickly return to the desktop, and press and hold windows + tab to display the switching window.
Press and hold the windows + R key and enter PSR Exe enter and turn on the self-contained video recording function. Press and hold the windows + X key to open the power options, device manager and other function menus.
Press and hold the windows + R key, enter OSK and press enter to open the virtual keyboard. Press and hold the windows and + keys to enlarge the screen.
In the multi tab program, press Ctrl + tab to switch the page, press Ctrl + Shift + tab to switch in reverse, press Ctrl + w to close the current page, press windows + FN + home to open the system properties.
Related reading: computer shortcuts
CTRL + C copy.
CTRL + X cut.
CTRL + V paste.
CTRL + Z undo.
Delete delete.
Shift + delete permanently deletes the selected item without putting it in the recycle bin.
While dragging an item, press Ctrl to copy the selected item.
Press Ctrl + shift while dragging an item to create a shortcut for the selected item.
F2 rename the selected item.
CTRL + right to move the insertion point to the beginning of the next word.
CTRL + left to move the insertion point to the beginning of the previous word.
CTRL + down to move the insertion point to the beginning of the next paragraph.
CTRL + up to move the insertion point to the beginning of the previous paragraph.
CTRL + Shift + any arrow keys highlight a piece of text.
Shift + any arrow keys to select multiple items on the window or desktop, or to select text in the document.
CTRL + a Selects everything.
F3 search for files or folders.
Alt + enter to view the properties of the selected item.
Alt + F4 close the current project or exit the current program.
Alt + enter displays the properties of the selected object.
Alt + spacebar opens the shortcut menu for the current window.
CTRL + F4 closes the current document in a program that allows multiple documents to be opened at the same time.
Alt + Tab toggles between open items.
Alt + ESC cycles through the items in the order they are opened.
F6 cycle through screen elements on the window or desktop.
F4 displays a list of addresses in my computer and windows explorer.
Shift + F10 displays the shortcut menu of the selected item.
Alt + spacebar displays the system menu of the current window.
CTRL + ESC displays the start menu.
Alt + underlined letters in the menu name display the corresponding menu.
The underlined letter in the command name displayed on the open menu executes the corresponding command.
F10 activates the menu bar in the current program.
The right arrow key opens the next menu on the right or opens a submenu.
The left arrow key opens the next menu on the left or closes the submenu.
Refresh the current window F5.
Backspace view folders one level above in my computer or Windows Explorer.
ESC cancels the current task.
When inserting a disc into the CD-ROM drive, press shift to prevent the disc from playing automatically.