Computer hardware is a physical basis of our computer. Without hardware, the most powerful program is just empty talk. Now I'll explain the composition of computer hardware in detail. Interested partners can learn about it.
Hardware introduction
1. Main board:
At present, the main chips of the main board are made abroad. The chip manufacturers mainly include NVIDIA, ATI, inter, AMD, via, SIS, etc. the major main board manufacturers develop their own PCB boards to design the main board to meet the CPU needs of the two CPU manufacturers respectively.
2、CPU：
One is from AMD. At present, the rare CPU is mainly produced by two manufacturers. The high-end products are speed dragon series, the low-end products are flash dragon series, and the other is inter company. The high-end products are ben4 series and the low-end products are Celeron series. Dual core CPU, which has become popular in the past two years, has corresponding models in the high-end products of the two companies. There is a lot of knowledge about CPU. You can query it online. I won't say much here. As a reminder, the CPU can't be fake. Only the outer box, fan and other accessories are fake.
3. Graphics card:
The production of independent graphics card chips is monopolized by two manufacturers. At present, graphics cards are divided into independent and integrated graphics cards NVIDIA and ATI companies produce integrated graphics card chips, including Inter, NVIDIA, ATI, SIS and so on. Major graphics card manufacturers use the graphics card GPU provided by the graphics card chip to design and assemble the graphics card.
4. Memory:
It is mainly made in Korea, but it is only the process of producing PCB and packaging in China. There are three main types of memory. At present, all memory particles are made abroad. One is SD memory (obsolete), one is DDR memory, and the other is DDR generation II memory. There will be DDR III memory in the future.
5. Hard disk:
Western Digital and Seagate, rare hard drives include Samsung. Seagate is basically unique. Those with a capacity of more than 20GB are basically 7400 revolutions, and those below 20GB are generally 5400 revolutions. The higher the speed, the faster the hard disk reads some data. A reminder: the production environment of hard disk is relatively high, and all hard disks are produced abroad.
6. Chassis + power supply:
Both are made in China. These two things have no technical content.
7. Optical drive:
CD burner (compatible with VCD, rare CD-ROM similar to VCD). It can record VCD and DVD drive (similar to DVD player, compatible with VCD. Kangbao (equivalent to DVD drive with multiple functions of recording VCD discs), DVD recorder (VCD, DVD playback and VCD, DVD recording functions)
8. Display:
CRT and LCD are two rare types. One is an ordinary display and the other is a liquid crystal display. The rare development process of an ordinary display is similar to that of a television. The size ranges from 14 15 17 19 21, and the screen ranges from spherical ultra flat to visual flat and physical flat. LCD size from 14 15 17 19 inches, the current popular widescreen has 17 19 20 21 inches and so on. The LCD panel of LCD display is made abroad.
9. Sound card:
The vast majority of mainboards are integrated with integrated sound cards. Rare ones include integrated sound cards and independent sound cards, which can meet the use of ordinary consumers. Independent sound cards are generally used in high-end, so I won't say much here.
10. Network card:
There are rare independent and integrated network cards. The vast majority of mainboards are integrated with integrated network cards, which can meet the use of ordinary consumers. Independent network cards are mainly used for users with special requirements. I won't say more here.
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.