Overview Magnetic powder, the core component of magnetic coatings, is the main factor that determines the magnetic properties of magnetic recording media. It should have enough coercivity to effectiv...
The synonym CHINANET generally refers to China's public computer Internet composition structure ChinaNet is China's largest Internet service provider. ChinaNet is a part of the Internet in China. It...
Magnetic head The magnetic head of the hard disk is made by winding a coil on the magnetic core. The initial magnetic head is a combination of reading and writing, and the amplitude of the signal is...
Definition Internet literature refers to literary works and literary texts that are newly generated, using the Internet as a display platform and communication medium, and using hypertext connection...
Synonym shared medium generally refers to coaxial cable Historical development The development of coaxial cable is mainly divided into four generations: the first generation is the use of polyethyle...
Introduction 2B+D is a simple way to express the basic speed interface of Integrated Services Digital Network (ISDN). The 2B+D interface includes two voice channels B1 and B2 with a rate of 64kbit/s...
Born in New York on January 5, 1944, graduated from the University of Pennsylvania in 1965, and obtained a law degree from the Vinanova University School of Law in 1968. After graduation, he served as...
Basic concepts The principle of compilation is the science and technology of translating high-level programming languages. We all know that computer programs are written in programming languages. In...
Features In technology development contracts, common technology development risks are usually manifested in the following three aspects:First, technical risks. Although the developed technology confo...
Stage division 1 planTo provide a general definition of the problem to be solved, including understanding the user’s requirements and the actual environment, from technical, economic and social fac...
Related QuotesTechnological innovation is the only way to enhance the country’s core competitiveness. ——Zhou HaizhongTo follow the path of independent innovation with Chinese characteristics, we must...
Main Responsibilities ① Design, R&D, maintenance, installation and implementation of RFID-related application software and information management software;②Database management and application dev...
Background After China officially joined the WTO, the Chinese software market has become a part of the world market. Chinese software companies have directly faced the brutal competition from intern...
History In foreign countries, the first "Carlson" method that combined photoconductivity and electrostatic phenomena was called "electrophotography". Later, in 1948, a new The name is "Xerography"....
Development history Camera developmentThe earliest camera structure was very simple, including only camera obscura, lens and photosensitive materials. Modern cameras are more complex, with lens, ap...
Collection criteriaThe registration requirements for civil service examinations are (recent headless front ID photo, jpg format, width 1-2 cm, height 2-3 cm, (The size is less than 20KB)I. Photo file...