Computers Playlist Lessons: Computer Science Terms

Lesson 2: Computer Science Terms


Should I Learn to Code?

Like any skill, coding takes dedication and patience to develop.

Programming Languages

Everything we do on computers and smartphones has some sort of code behind it telling it what to do.

Hardware and Software

Hardware is any element of a computer that's physical. Software is anything that tells hardware what to do and how to do it.

Sequences, Selections, and Loops

Behind all of the software we use on a daily basis, there's a code being run with all sorts of terms and symbols. Surprisingly, it can often be broken down into three simple programming structures called sequencesselections, and loops.


An algorithm is simply a set of steps used to complete a specific task. They're the building blocks for programming, and they allow things like computers, smartphones, and websites to function and make decisions.


Computers use a number system that has just two digits: one and zero. This system is called binary, and your computer uses it all the time.

Go deeper in our Computer Programming Basics tutorial.