Compare analog CRO with digital storage oscilloscope (DSO).
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Analog CRO
DSO
1 High bandwidth
Less bandwidth due to aliasing effect
2 High  writing speed about 15 GHz
Limited speed
3 No memory
Has memory for storage
4 high performance converter
Low performance
5 Costlier CRT
Cheaper CRT
6 Low resolution 
High resolution 
7  the time base is generated by a ramp circuit, so less stability
The time base in a digital storage oscilloscope is generated by a crystal clock so that it is more accurate and stable than an analog oscilloscope
8 Less storage time.
The digital oscilloscope is  capable of an infinite storage time, using its digital memory.
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