Second generation mobile communication system (2g) is digital cellular system which can provide low-speeddata business.
第二代移动通信系统(2g)是数字移动系统,能提供低速率数据业务。
2
Early computer's computational speedlow and the prevailing scientific computing and data processing is not affected, but can not meet the requirements of real-time control machine.
早期计算机的运算速度低,对当时的科学计算和数据处理影响还不大,但不能适应机床实时控制的要求。
3
This paper describes a circuit of data exchange with the features of high speed and low power dissipation.