A.
Virtual instruments become more and more popular for its upstanding characteristics like low cost, multi-function, facility and so on.
B.
All measuring instruments consist of three parts: data acquisition, data ysis and results output. In these three parts, data acquisition can be done by the system hardware like A/D module or digital 10 modules.
C.
All measuring instruments consist of three parts: data acquisition, data ysis and results output. like A/D module or digital 10 modules. Data ysis and results output can be completed by software system based on computer.
D.
All measuring instruments consist of three parts: data acquisition, data ysis and results output. In these three parts, data acquisition can be done by the system hardware like A/D module or digital 10 modules. Data ysis and results output can be completed by software system based on computer. So, if given some necessary data acquisition hardware, a measuring instrument based on computer can be constituted.