beginner

Foundations of Digital Logic & Circuits

A hands-on introduction to digital logic and computer memory, covering logic gates, Boolean algebra, binary arithmetic, adders, number representations, Karnaugh maps, latches, flip-flops, and registers for building real digital circuits.

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Verified skills you'll gain

DEVELOPING

Digital Circuit Design

INTERMEDIATE

Digital Logic Fundamentals

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Course 2

Combining Gates to Build Meaning

6 lessons

23 practices

See how simple gates become useful building blocks: explore NAND, NOR, and XOR, practice base conversions and binary arithmetic, then design adders and understand signed numbers and overflow.

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Course 3

The Idea of Memory

5 lessons

18 practices

Understand how digital systems store state: from feedback loops to SR latches, D latches, and edge-triggered flip-flops. Learn how memory elements work, and how to design circuits that rely on sequential logic.

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From our community

Hear what our customers have to say about CodeSignal Learn

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

I love that it's personalized. When I'm stuck, I don't have to hope my Google searches come out successful. The AI mentor Cosmo knows exactly what I need.

Faith Yim

Software Engineer

+14

It's an amazing product and exceeded my expectations, helping me prepare for my job interviews. Hands-on learning requires you to actually know what you are doing.

Alex Bush

Full Stack Engineer

I'm really impressed by the AI tutor Cosmo's feedback about my code. It's honestly kind of insane to me that it's so targeted and specific.

Abbey Helterbran

Tech consultant

I tried Leetcode but it was too disorganized. CodeSignal covers all the topics I'm interested in and is way more structured.

Jonathan Miller

Senior Machine Learning Engineer

+12

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11