In the field of computer software development, it is very troublesome for our work if you don't know the development documents written by other designers. Today, Beida Jade Bird gives you a brief introduction of some basic computer knowledge about developing the system.

First, the server

A server is a computer that can provide high performance for client services. Different from other ordinary computers, the server faces the whole user network, works 24 hours, and works in a multi-user and multi-task environment, so it needs high stability. In addition, Chuxiong IT training is also very strong in scalability and manageability.

Second, the database

A database is a warehouse for storing and processing data. Mainly divided into relational database and non-relational database, of which relational database is a common one.

Third, caching.

When processing data, the computer takes into account the pressure of data storage space, search speed and data utilization rate, thus producing cache. Simply put, the cache will save the temporary location of the data and save a copy of the high-frequency data. Cache is everywhere, including browser-side cache, server-side cache, database cache and so on. Chuxiong IT training found that Andirod mobile phone cache refers to this.

Fourth, cookie and conversations.

In the introduction of HTTP protocol, we define the irregularity of browser opening files. However, the HTTP protocol is stateless and has nothing to do with the context. Chuxiong computer training believes that, in simple terms, the server cannot determine that the first two requests came from the same client.