How to find out when a site was published?

Does the surface of a DVD-ROM contain microscopic pits?

How does adding additional light bulbs affect a series circuit?

Which one of these would be the best use for a word processor? A. recording data for analytics B. writing a letter C. preparing a slide show D. calculating grades

A digital communication system consists of a transmitter and a receiver

Which are among the ways you can use bitlocker encryption? (choose all that apply?

What is the difference between a learner's license and a driver's license? Name the written test a potential driver must pass and list the minimum required score to earn a learner's license.

Are websites required to keep logs of visitors by law?

Recall when you built your binary message sending device. Why did we decide to send a message as a sequence of states (A and B) rather than modifying our devices to represent more states (State C, State D, State E, ...)

Public-key cryptography can be used for encryption (ElGamal for instance) and key exchange. Furthermore, it has some properties (such as nonrepudiation) which are not offered by secret key cryptography.

What kind of heat we feel from the sun