Can anyone help me explain the P4 266d

It seems to be a certain model of the old motherboardP4, which means that it can be used for Pentium 4 processors, and the 266D behind it is the frequency of DDR266 running memory, simply put, it is the previous DDR memory module, but the highest frequency used is 266

The meaning of p4 is:White phosphorusAppearance: The hall is white or light yellow translucent solid. It is soft, brittle when cold, and the color of the light becomes darker. Exposure to air produces green phosphorescence and white smoke in dark places.

About 40 on fire in humid air and slightly higher in dry air.

White phosphorus can directly interact with halogens, sulfur, metals, etc., and form phosphoric acid with nitric acid, and sodium hydroxide.

or potassium hydroxide to produce phosphine and sodium hypophosphite or potassium phosphate. It should be avoided with potassium chlorate, potassium permanganese encryptorate.

Contact with peroxides and other oxides.

First Aid Measures:**Contact: Remove contaminated clothing and immediately apply 2% 3% silver nitrate.

Extinguish phosphorus fires. Rinse with plenty of running water. If you feel unwell, seek medical attention.

Eye contact: Lift the eyelids immediately and rinse thoroughly with plenty of running water or saline for 10 to 15 minutes. If you feel unwell, go to Tensen doctor.

Inhalation: Quickly remove from the scene to fresh air. Keep your airway open.

Unobstructed. If you have difficulty breathing, give oxygen. If breathing or cardiac arrest, perform CPR immediately.

Medical treatment. The above content reference: Encyclopedia--p4

P4 is the abbreviation for Intel's CPU Pentium 4 processor.

The Pentium IV CPU uses Intel's Netburst technology, which doubles the pipeline depth of the architecture to 20 levels compared to the Intel Pentium III CPU processor.

This greatly improves the performance and frequency of the Pentium IV CPU. This technology provides the following contributions to the product: Improved floating-point function The improved floating-point function enables the Pentium IV to provide more realistic and three-dimensional graphics, bringing more exciting games and multi** enjoyment.

The fast execution engine, ALUs (Arithmetic Logic Units), runs at double the clock speed, increasing overall speed. With a new high-speed caching system, the execution tracking is high-speed slow and shouting, so that the high-speed execution instructions are consistent with the operation is guaranteed.

400MHz System BusThe 400MHz system bus (provided by the motherboard) provides Gigabytes per second transfer speed between the Pentium IV CPU and the memory controller, which is the highest bandwidth desktop computer system available, providing more responsive system performance.

The power of the Pentium IV mainly comes from Intel's Netburst technology. Thanks to this technology, Intel has the capital to describe the product in their promotional materials as follows: making computers more suitable for three-dimensional gaming.

3D game performance can be greatly improved, with large polygon counts for ultra-realistic environments, and higher frame rates for smoother animations and faster gameplay.

Higher floating-point performance results in more lifelike and more advanced 3D graphics. Unleash your production potential, and email, TV, effortless transmission, and smooth playback become a beautiful reality.

P4 is Intel Inc. CPUPentium 4 processorAbbreviation.

Pentium 4 (Pentium 4

or simply Ben 4 or P4) is Intel Corporation.

7th generation x86 microprocessors released in November 2000.

It was the first redesigned processor after the Pentium Pro in 1995, a new architecture called Netburst. The first product** was: Willamette, which had a left and right core clock and used a socket 423-bit architecture, and Dan Jianye's first processor was released in November 2000.

The Pentium 4 was designed to accommodate faster clock speeds, as consumers began to buy computers based on higher clocks. In this respect, the Pentium 4 is a classic example of market-driven technology. This quickly gave impetus to ultra-wide microsemiconductors.

AMD).

Mythological Movement. Intel uses a deep instruction pipeline to achieve this, reducing the actual amount of work that can be processed per clock cycle compared to other CPUs such as Pentium III and Athlon, but it can work at higher clock speeds. AMD, on the other hand, uses the so-called PR value to indicate the Athlon-XP processor that corresponds to Pentium 4.

Intel's Pentium 4 processor.

The Pentium 4 (or simply Ben 4 or P4) is Intel's 7th generation X86 microprocessor and the first redesigned processor after the Pentium Pro in 1995, a new architecture called Netburst. The first product** was: Willamette, which had left and right core clocks and used a socket 423-bit architecture, and the first processor was released in November 2000.

Unlike the Pentium II, Pentium III, and various Celeron processors, it has little to do with the Pentium Pro because it is a completely newly designed product. It's worth noting that the Pentium 4 has a very fast front-side bus of 400MHz, which has been boosted to 533MHz and 800MHz since then. It's actually a 100MHz four-by-side bus (100MHz x4 parallel), so it can theoretically transmit four times more capacity than a normal bus, so it claims to have a speed of 400MHz.

AMD Athlon's front-side bus has a speed of 266MHz (133MHz double parallel bus).

P4 is the abbreviation for Intel's CPU Pentium 4 processor.

P4 is a new meme on the Internet, which means "". It's a common phrase that has been derived on the web for the sake of abbreviation. Memes are Internet terms that often appear in variety shows and the Internet.

4 is a web term, and in the new generation of web languages, people understand 4 as in addition to 2 or plus 2And 2 can be understood as the delicate meaning of "stupid" and "stupid".

P4 is the abbreviation for Intel's CPU Pentium 4 processor. The Pentium IV CPU uses Intel's Netburst technology, which doubles the pipeline depth of the architecture to 20 levels compared to the Intel Pentium III CPU processor. This greatly improves the performance and frequency of the Pentium IV CPU.

P4 is a programming language used to control packet forwarding in network equipment. Compared with programming languages such as C language and Python, it is better at controlling network data.

P4 is a level of biosafety laboratory, and P4 laboratory refers to a laboratory with biosafety level 4. P4 not only has the highest level of security, but also has a huge cost and expense, which limits research and construction in many countries.

P4 (white phosphorus).

White or light yellow translucent solid. It is soft, brittle when cold, and the color of the light becomes darker. Exposure to the air produces green phosphorescence and white smoke in dark places. About 40 on fire in humid air and slightly higher in dry air.

P4 also stands for: Biosafety Level 4.

is a pointer to an array, equivalent to oneTwo-dimensional arrays

First of all, the array inta[5][2]=; According to address continuity a[0][0], a[0][1], a[1][0], a[1][1], a[2][0]. And the traces are assigned in the order of absoluteness and correspondence.

Compare two lines**:

int*p=a[0]。

int(*p2)[2]=&a[1]。

Other operators:1. Comma operator: tell-mold.

Used to put a number of expressions.

into an expression (,).

2. Pointer operator:

It is used for two operations: fetching content (*) and address (&).

3. Find the byte operator:

Used to calculate the data type.

The number of bytes occupied (sizeof).