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DBMS Architecture The DBMS design depends upon its architecture. The basic client/server architecture is used to deal with a large number of PCs, web servers, database servers and other components that are connected with networks. The client/server architecture consists of many and a workstation which are connected via the network. DBMS depends upon how users are connected to the database to get their request done. Types of DBMS Architecture Database architecture can be seen as a single tier or multi-tier. But logically, database architecture is of two types like:  2-tier architecture  and  3-tier architecture . 1-Tier Architecture In this architecture, the database is directly available to the user. It means the user can directly sit on the DBMS and uses it. Any changes done here will directly be done on the database itself. It doesn't provide a handy tool for end users. The 1-Tier architecture is used for development of the local application, where programmer

1G - First Generation Cell phones began with 1G technology in the 1980s. 1G is the first generation of wireless cellular technology. 1G supports voice only calls. 1G is analog technology, and the phones using it had poor battery life and voice quality, little security, and were prone to dropped calls. The maximum speed of 1G technology is 2.4 Kbps. 2G - Second Generation Cell phones received their first major upgrade when their technology went from 1G to 2G. This leap took place in Finland in 1991 on GSM networks and effectively took cell phones from analog to digital communications. The 2G telephone technology introduced call and text encryption, along with data services such as SMS, picture messages, and MMS. Although 2G replaced 1G and is superseded by later technology versions, it's still used around the world. The maximum speed of 2G with General Packet Radio Service (GPRS) is 50 Kbps. The speed is 1 Mbps with Enhanced Data Rates for GSM Evolution (EDGE). Before