Physical Clocks, NTP, and variations
On Physical Clocks
On NTP / Time Synchronization
- Distributed Systems 3.2: Clock synchronisation | Martin Kleppmann
- A Guide To NTP Clocks and Networked Time Displays | Time Tools Ltd
- Clock Synchronization: Physical Clocks | Paul Krzyzanowski
On GPS
Other Virtual Labs
- Forward Kinematics of PUMA 560 and Experiment 2 | Prof. C S Kumar
- Measurement of Capacitance by Schering Bridge | Prof. A.K Deb
- Built-in Functions (Python Programming Lab) | Dr. Aparna Dixit
Image Credits
- A diagram showing the relationships between the various levels of NTP servers. The blue numbers are the stratum numbers; yellow arrows show a direct connection, such as RS-232, while red arrows show a network connection. | Benjamin D. Esham (bdesham)
- Round-trip delay time δ | Maxiantor
- What is NTP? Network Time Protocol Overview - study-ccna.com