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State the main features of a tree

It is a dynamic hierarchical data structure, it has a node at the top of the tree called root ode ad each node can have children nodes and the lines joining the nodes are called branches. A node that has ...

Answered by Zifeng L. • Computing tutor

3315 Views

What is a network protocol and why do we need it?

In computer networking, in order for two end devices to communicate in some way, we need rules. These rules are called network protocols. Network protocols are predefined set of rules for effective commun...

Answered by Toma M. • Computing tutor

5301 Views

What is the difference between HTML, CSS and JavaScript

HTML, CSS and JavaScript are the building blocks of the internet which are used to build all the websites around. HTML, or Hyper Text Markup Language, defines the layout of a webpage (where the headings g...

Answered by Domantas J. • Computing tutor

2617 Views

What is the truth table for the Boolean operator AND?

The Boolean operator AND is a very common one encountered in Computer Science, along with NOT and OR (and its variant XOR). The operator takes in two inputs and gives one output. The truth table shows all...

Answered by Alexandru N. • Computing tutor

1990 Views

Simplify the following Boolean expression: ¬(AvB) v ¬(CvD) v ¬A^(BvC) v (¬A^A)

(This question is easier to display on a whiteboard or written down)(¬A^¬B) v (¬C^¬D) v (¬A^B) v (¬A^C) v 0 [De Morgan's Law, Distributive Law, Inverse Law]¬A v (¬C^¬D) v (¬A^C) [Absorbtion Law]¬A v (¬C^¬...

Answered by Nikesh P. • Computing tutor

5442 Views