Is there any softwares to design the electronic circuit & also to show thus circuit’s Output like CRO monitor?

You need to Help us! I hopes to realize that operations of electronic circuits.But with the analysis objective, I doesn’t develop the measuring & monitoring devices plus such types of electronic parts! So it’s better to help having software in this operation.Can anybody help me to choose the correct one particular PlS..Pls…Pls…

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I trust Tina-TI will conduct what you need.