![](https://cos-cdn.shuashuati.com/pipixue-wap/2020-1230-1107-56/ti_inject-812ce.png)
How can the users of terminals without processing capability acquire the necessary information?
A.
They can simply use a keyboard or a mouse.
B.
They should use a modem to maintain the host system.
C.
They should connect their computer to a satellite system.
D.
They can access its base through the programs on the system.