Before donating a computer you should use a program to wipe the hard disk to remove all of its data

How many bit does four gigabyte has

Write a program that asks the user to enter the amount s/he has budgeted for a month. The amount should be between 1000 and 2000 (do an input validation).

Why don't we need to know the IP addresses for our favorite sites

What is the meaning of the term busy waiting? What other kinds of waiting are there in an operating system? Can busy waiting be avoided altogether? Explain your answer.

Russ is the project manager of a multi-national team with members in Ireland, Malaysia, and the United States. Once a week, the team meets using video and audio links on their computers so that they can see, hear and talk with one another.

Which website should I use to learn coding?

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.