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What’s the difference between engineering machine, testing machine and ordinary mobile phone?

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What’s the difference between engineering machine, testing machine and ordinary mobile phone?? Engineering machine, can the tester check the origin?

engineering machine, testing machine and ordinary mobile phone have the following differences:

first, the nature is different:

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1. Engineering machine is an unused mobile phone that is not online, but it has many shortcomings. It is a sample

2. Testing machine is a machine for employees or special testers on the basis of engineering machine

3. Ordinary mobile phones are the mobile phones we usually use

II. Different functions:

1. The engineering machine is mainly a sample formed before the outgoing line of the new product, which can be displayed for others

P> is mainly used to correct the defects of the testing machine, and then the defects can be found

3. Ordinary mobile phones are mature machines that can meet people’s major needs such as call, video and payment

III. different directions:

1. After the new machine is launched, the engineering machine is generally treated as follows. The company’s own archiving and collection, low-cost sale of internal employees, destruction or scrapping, in short, can not flow into the general market

2. The processing of the testing machine is the same as that of the engineering machine, which is “not for sale”

3. Ordinary mobile phones will be widely publicized and sold in the ordinary market

extended data:

mobile phones are divided into smart phones and non feature phones. Generally, the performance of smart phones is better than that of non smart phones, but the performance of non smart phones is more stable than that of smart phones. Most non smart phones and smart phones use the CPU of British arm company

smart phones have higher dominant frequency, faster running speed, faster processing program tasks and more convenient daily life (for example, Nokia N81 has 369 MHz); The dominant frequency of non smart phones is relatively low and the running speed is relatively slow (for example, the dominant frequency of Nokia 5000 is 50 MHz)

reference source: Baidu Encyclopedia – mobile phone

reference source: Baidu Encyclopedia – mobile phone engineering machine

reference source: Baidu Encyclopedia – engineering testing machine

engineering machine, R & D model. It is usually a newly manufactured model that has not been tested and corrected. The testing machine is similar to the engineering machine, but it is mainly used for internal testing. For example, it is sent to employees, or the user asks them to test and then report the bugs in the test, which is convenient for the manufacturer to correct. Ordinary machines are machines that have been bug corrected and officially launched after the first two stages. No matter the quality of ordinary machines, the software performance is much better than the first two.

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