Explanation:

Synchronous Counter:
Synchronous counter is a type of MSI (Medium Scale Integration) counter.

MSI Counters:
MSI counters are Medium Scale Integration counters which are more complex than SSI (Small Scale Integration) counters but less complex than LSI (Large Scale Integration) and VLSI (Very Large Scale Integration) counters.

Characteristics of MSI Counters:
- MSI counters are commonly used in digital electronics for counting and sequencing applications.
- They are designed with medium complexity to provide a balance between functionality and complexity.
- MSI counters are made up of various integrated circuits that perform specific functions within the counter.

Operation of Synchronous Counter:
- In a synchronous counter, all flip-flops change state simultaneously, based on a single clock pulse.
- The flip-flops in a synchronous counter are interconnected in such a way that they change state at the same time, allowing for precise and synchronized counting.

Advantages of Synchronous Counters:
- Synchronous counters offer better timing control and accuracy compared to asynchronous counters.
- They are easier to design and implement in synchronous digital systems.

Conclusion:
In conclusion, synchronous counters are a type of MSI counters that provide synchronized and accurate counting in digital circuits. They offer advantages in terms of timing control and ease of design, making them a common choice for various applications in digital electronics.