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Computer Novices Must See 25 Special Terms

Aug 24, 2022

1. CPU

The CPU is the main processor of a notebook computer. Some people liken it to the human brain, which shows the importance of the CPU.

It is the basis for all computer processes to run, including mouse usage, streaming media, editing documents or videos, and more.

The CPU performance will determine the working performance of the notebook computer, including the response speed of all operations, the power consumption of the computer, the degree of heat generated by the computer when it is working, and the degree of support for other major components such as graphics cards.

2. BIOS

The full name of BIOS is the abbreviation of "Basic Input Output System", which is translated into basic input output system in Chinese.

This part is a group of ROM chips integrated on the computer motherboard. It is used to protect the most important basic input and output functions of the computer, as well as system setting information, automatic computer detection programs when starting up the computer, and automatic startup programs for some systems. The most direct hardware control recently, the performance of the BIOS ROM chip plays an important role in determining the performance of the computer motherboard.

3. Operation System (OS)

Operating system, all software of the computer must run within the operating system, all output information of the software will be conveyed to the computer hardware through the operating system, and then become output signals, which are fed back to the user. In actual use, the operating system will manage the processing of the computer It is the basis for users to use the computer smoothly.

The current mainstream operating systems are Windows, macOS, Linux, etc.

4. RAM

The full name of RAM is Random Access Memory, which refers to "random access memory", and we generally call it "memory stick".

The main role of RAM is as a temporary storage medium for the operating system or other running programs, and all data will not be saved.

When the computer is working, all data will be temporarily loaded into the RAM first. Therefore, the larger the RAM value, the faster the computer will run, the more responsive the program will be, and the smoother the synchronization of multiple programs will be.

5. SSD

The full name of SSD is Solid State Drives, which refers to "solid state drives".

A flash drive that stores computer information, all information is logged, and the information is retained even when the computer is turned off.

Usually, the choice is based on the storage capacity. At present, the common ones are 64G, 128G, 256G, and 512G. The larger the capacity, the more information content can be stored, but at the same time, the price is also higher. When purchasing, users need to choose according to their own purposes. 

If it is ordinary daily work, 128G can basically meet.

However, 3D modeling, video editing and other work require a lot of storage space, so you must choose 256G or even larger storage capacity, such as 512G, 1TB~4TB capacity, etc. to meet the information storage space.

6. HDD

The full name of HDD is Hard Disk Drive, which refers to "hard disk drive", which is also the hard disk we often say.

The equipment that uses disks and read-write heads for information storage is cheaper than SSD, but its read and write speed is slower than that of SSD, and its shock resistance is weaker than that of SSD.

In the latest computers, HDDs have been replaced by SSDs.

7. Graphic Card

Video capture card, commonly known as "graphics card", inputs external video signal data, such as video recorder, TV, tape recorder, etc. signal data into the computer, and converts it into a computer-recognized digital signal at the same time, becoming a computer-editable video file or audio file.

8. GPU

The full name of GPU is Graphics Processing Unit, which refers to "graphics processor".

The GPU is the core chip of the computer graphics card (Graphic Card), and the graphics card refers to the card containing the GPU. The status of the GPU to the graphics card is similar to that of the CPU to the computer. The performance of the GPU directly determines the performance of the computer graphics card.

9. NVIDIA GEFORCE GTX/RTX

Nvidia's dedicated notebook GPU models: GTX and RTX. RTX is the latest series.

There are multiple models in both series to meet the needs of different users. For example, users who focus on gaming can buy notebooks equipped with Nvidia GeForce RTX 3080. If the budget is limited, they can choose RTX 2060 or GTX 1660 Ti. notebook.

10. Chromebooks

This is a laptop using Google ChromeOS system, all programs are run based on Google Chrome, applications are downloaded in Google Play Store, run in Chrome, and all information and data are stored in the cloud.

Chrombook is very suitable for users whose work is mostly web or network-based, and is not suitable for users who have requirements for local programs, such as frequent video editing or editing applications.

11. Retina Display

The Retina display is the first screen standard proposed by Apple. It has an ultra-high pixel density, and the pixels can reach 300ppi/inch. It is currently used in electronic devices such as notebook computers, mobile phones and tablet computers.

12. UHD (4K)

The full name of UHD is Ultra High Definition, which refers to "Ultra High Definition Display".

Includes 4K Ultra HD and 8K Ultra HD:

4K UHD pixel is 3840*2160

8K ultra-high pixel is 7680*4320

Ultra HD displays can present four times the number of pixels and twice the resolution of Full High Definition (FHD), while using progressive scan technology to render more accurate motion pictures.

In practical application, it is very suitable for large-size displays.

13. FHD

The full name of FDH is Full High Definition, which refers to "full high-definition display", which is 1080p resolution, and the pixels are 1920 × 1080 pixels.

FDH is different from 1080i display. FHD uses progressive scan, while 1080i is also 1920*1080 pixels, but it is interlaced, so FHD is more suitable for moving pictures, especially fast-moving pictures.

In practical applications, FHD is more suitable for smaller screen sizes to achieve the best display effect.

14. QHD or QHD+

The full name of QHD is Quarter High Definition, and the screen resolution is 960 × 540 pixels, which is 1/4 of FHD.

Therefore, the resolution ranking is: UHD>FHD>QHD

15. IPS

The full name of IPS is In-Plane Switching, which refers to a plane switching technology for real screens. The IPS display allows users to see the short axis of the liquid crystal molecules at any angle, so as to achieve the screen from different angles. The effect will not be much different.

16. SVA

A wide viewing angle screen, the liquid crystal molecules in the screen are arranged in a different direction from the IPS, and will not show different picture quality with different angles. It will have better color reproduction and a wider color gamut. The overall user feedback is not as good as IPS screens.

17. CD/M2 (nits)

cd/m2 or Nits is the unit of brightness, 1 nit = 1 cd/m2

Sufficient brightness can make the screen still have a good display effect in a bright environment.

At present, the brightness of most notebook displays is 400nit or above, and low-end notebooks may be below 400nits. Displays below 250nits are not ideal for display in bright environments or outdoor environments.

18. DCI-P3

DCI-P3, referred to as P3, is a color gamut standard introduced by the Society of Motion Picture and Television Engineers (SMPTE) in 2007 to match the full color gamut of color movies as much as possible. A newer standard color scale for digital cinema projection, with a wider gamut of greens and reds.

When applied to a notebook computer, a percentage value may appear in front of DCI-P3, such as 90% DCI-P3, which means that the screen of this notebook computer can restore 90% of the colors in the DCI-P3 color standard, and you can see that the color is very different. Rich screen images.

19. NTSC

The NTSC color gamut is the NTSC standard, the full name of which is the sum of colors under the National Television System Committee. The standard was formulated by SMPTE in 1952.

A percentage value is used in the notebook to indicate the NTSC color gamut level. The higher the percentage number, the better the color saturation of the picture. Usually, the screen at 70% or above can display a good picture, and the screen below 45% will look a little bit. Oops.

20. USB (USB-A)

The full name of USB is Universal Serial Bus, Universal Serial Bus.

Used to link computers and external devices for data transmission.

Most computers past and present use USB-A, or USB Type-A ports.

21. USB-C

USB-C, also known as USB Type-C, is the latest form of USB port. The port size is smaller than the traditional USB-A, and there is no upper and lower distinction. It is more convenient to use than USB-A. At the same time, USB-C can be used with almost all Android devices. The system mobile phone is applicable to increase the data connection type.

22. HDMI

The most common data cable, used to transmit images and sounds, can connect a computer with other display screens, TVs, etc., such as connecting the screen of a notebook to a large-size TV screen.

23. THUNDERBOLT 3.0/4.0

A data interface similar to USB, the difference is that the THUNDERBOLT interface can transmit video and audio signals in addition to data, and the transmission speed is much faster than the USB port.

Thunderbolt 3.0 is currently the main port standard for notebooks, with a maximum transmission speed of 40Gbps. When used with an external SSD, it can achieve rapid transmission.

Thunderbolt 4.0 can be seen in the latest computers, such as the MacBook Pro, and its transfer rate is sufficient for users to connect two 4K monitors or one 8K monitor at the same time.

24. Wi-Fi 6

The latest WiFi technology, also known as WiFi AX, can provide faster and more streamlined multi-device simultaneous network connection, higher security level, and lower power consumption. These functions require the use of both a laptop and a router with WiFi6.

25. Ethernet

The Ethernet port, used for wired network connection, is not affected by the strength of the WiFi signal, which can be seen in some large notebooks.

However, in some ultra-light and ultra-thin notebooks, this port has been cancelled, and notebooks are mainly connected to the network through WiFi.


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