What does 9000 after ISO9000 mean?

What does 9000 after ISO9000 mean? ISO9000

ISO carries out technical activities through its 2856 technical organizations. There are * *185 Technical Committee (TC), * SC) * * 61+0 Technical Committee (SC), 2022 working groups (WG) and 38 special working groups.

The technical activities (products) of 2856 technical institutions of ISO are "international standards". ISO has formulated more than *** 10300 international standards, mainly involving the technical specifications of various products (including service products and knowledge products) in all walks of life.

In addition to standardized names, international standards formulated by ISO also have numbers. The numbering format is: ISO+ standard number+[article+sub-standard number]+colon+publication year number (contents in square brackets are optional), for example: ISO 8402: 1987, ISO 9000- 1: 65438.

However, "ISO9000" refers not to one standard, but to a series of standards. According to the definition of ISO9000- 1: 1994: "ISO9000 family is all international standards formulated by ISO/TC 176."

What is TC 176? TC 176 is the technical committee of 176 in ISO. Established in 1980, the full name is "Quality Assurance Technical Committee". 1987 was renamed as "Technical Committee for Quality Management and Quality Assurance". TC 176 is responsible for formulating standards for quality management and quality assurance technology.

One of the earliest standards formulated by TC 176 is ISO 8402: 1986, named Quality-Terminology, which was officially released on June 1986. 1987 In March, ISO officially released ISO9000: 1987, ISO 900 1: 1987, ISO 9002: 1987, and ISO 9003:/kloc-0.

Since then, TC 176 has published another standard in 1990, three standards in 199 1, one standard in 1992 and five standards in 1993. 1994 did not publish other standards, but revised the above-mentioned "ISO9000 series standards" uniformly. Change them to ISO 8402: 1994, ISO9000- 1: 1994, ISO 9001:/994, ISO 9002: 1994, ISO 9002. In 1995, TC 176 issued another standard with the number of ISO10013:1995. On June 5438+February 15, 2000, ISO issued the 2000 edition of ISO9000 series standards, which reduced the original 9000 series standards to the following three standards:

1 т 9000:

2 2. Requirements of quality management system according to O900 1:2000: 2000;

3. O 9004: 2000 Quality Management System-Performance Improvement Guide.

What do the numbers after ISO9000/ISO22000 mean? ?is a quality control system, ISO22000 is a food safety management system,

These two standards are issued by ISO International Organization for Standardization, so we use this 9000 and 22000 as code names.

Generally, ISO 9000: 2008 is written in this way, and the latter 2008 means the standard version, which was issued in 2008, so the year is used as the version number.

Similarly, ISO22000 is the same.

What does TQC mean? What about ISO9000? TQC: Total Quality Management

ISO9000 international quality management system certification

What do you mean by ISO9000? Because in addition to ISO900 1-quality management system-requirements, there are also

O9000-Quality Management System-Basis and Terminology

109004-Quality Management System-Performance Change to South China

Iso 190 1 1- quality and environmental audit guide

That's why we keep calling it a family.

What do iso9000 and iso 14000 stand for respectively?

International, international

Standard standard

O- organization

What does ac mean after 380vac? The meaning of alternating current, the whole meaning is the voltage of alternating current 380V V v.

If it is DC, it is: 380VDC.

What does the+sign after AMD CPU3600+ mean? 3600+ cannot open the explanation. 3600+ is the PR value defined by AMD (PR is the abbreviation of Performance Rate, which means performance ratio in Chinese). It refers to the processing power of P4 3.0G (which AMD shows off by itself). But it is actually less than this value. The actual main frequency of 754-pin A64 3000+ is only 2.0GHZ, and the core of 939-pin E6 is 1.8GHZ.

Amd doesn't have a fixed formula when labeling CPU. To know the actual frequency of different Athlon64, you can check its official website: amd or AMD. ..

32-bit chips can handle 232 addresses, or 4G RAM, and 64-bit chips and operating systems will greatly increase this number. According to the definition of x64 of Windows XP Professional Edition, 128GB RAM and 16TB virtual memory can be supported now, and this number will continue to grow in the development of future Windows versions. The chip architecture of AMD64, which has been implemented now, can manage 256TB of memory, and it is likely to be extended to 2eb in the future version. Chips with 64-bit computing power can also support 32-bit applications.

In April 2003, AMD launched Opteron processor based on 64-bit technology, and in September 2003, AMD launched Athlon processor with 64-bit. Dawning 4000A uses more than 2,000 64-bit AMD Opteron processors, and the floating-point operation reaches 10 trillion times per second. How fast is 10 trillion times?

Dawning 4000A can complete the power safety assessment of the national grid consisting of 1 10,000 grid-connected generating units with more than 50 million watts and 220,000 volt substations within 20 seconds. Can complete the calculation of 200 kinds of securities indexes of Shanghai Stock Exchange 1000 in10 minute; It can complete the calculation of four 36-hour weather forecasts around China, most of North China, Beijing and Beijing in 2008 Olympic Games within 1 hour, accurate to each Olympic venue. ...

Of course, not every desktop at home needs such strong computing power, but ordinary consumers also need 64-bit technology. From the end-user experience, in fact, the limitation of memory capacity is only one aspect of the advantages of 64-bit computing technology, and the processing of large amounts of data is where 64-bit technology really plays a role. PC is not only a computing tool for users, but also an "experience" center. Whether it is high-fidelity audio, cinema-level picture experience, or even home audio and video production, it needs powerful 64-bit computing to support it. In fact, as long as you look around, you can find many applications that 32-bit computing can't meet or realize at all. For example, 32-bit computing cannot complete the recording of some human DNA at all; At home, 32-bit can't achieve high-fidelity sound and pictures, and even can't play and edit 20 minutes of video content; In the field of architectural design or game design, 32-bit computing can not complete a lot of data calculation and processing; On the Internet, 32-bit computing can't realize massive and various types of data search, and can't realize the idea of assigning an IPv6 address to everyone on the planet ... These applications need 64-bit computing to realize, and we can feel how urgent the industry needs 64-bit computing!

What does "Mu An" after "%"in printf mean? The letters after the percent sign indicate the output format.

For example:

printf("%d %4d \n "，I，j)；

The output I is an integer, leaving a space, and the output J is an integer, where J occupies 4 digits, and fill in the blanks where there are deficiencies.

printf("%f %lf \n "，a，b)；

Output a in floating-point format and b in double-precision floating-point format.

printf("%9.4f %.5lf \n "，a，b)；

Output a, ***9-bit floating-point format, including 4-bit decimal, output b, 5-bit double-precision floating-point format.

printf("%s\n "，buff)；

Output stringbuffer area in character format.

\n In the example, it is the output "line break".

There are other formats, please see C language reference books or search printf online.

What does the n after linux permissions mean? The first character of rwx corresponds to the file type:

-Just plain files, d for directories, c for character devices (in linux/unix, all devices are files), b for block device files, s for socket files, and so on. All file types are identified as follows:

`-'

Conventional file

` b '

Block special file

` c '

Character special file

` c '

High performance ("continuous data") files

` d '

catalogue

` d '

Door (Solaris 2.5 and later)