Is Code better than Dive into Systems?

Code ranks higher in our list of computer architecture books (#3 against #6, score 90.0 against 87.0). Code is best for: readers with no technical background. Dive into Systems is best for: free first course in computer systems.

Which is cheaper, Code or Dive into Systems?

Code: Sold as a print book; price varies by seller. Dive into Systems: Free online; low-cost print from No Starch Press.

Comparison · Computer architecture books

Code vs Dive into Systems: which is better in 2026?

Code90.0#3 in best computer architecture books

Dive into Systems87.0#6 in best computer architecture books

Code ranks higher in our list of computer architecture books (#3 against #6, score 90.0 against 87.0).

How we rank Share

90.0
Editorial score
87.0
1
Formats
2
No
Free to use
Yes

Which should you choose?

Choose Code if you want

Readers with no technical background.

The strongest starting point here, building from simple circuits up to a processor with no prerequisites. It explains ideas broadly and offers little hands-on practice, so it ranks below the textbooks for working understanding.

Choose Dive into Systems if you want

Free first course in computer systems.

A free, interactive introduction to how a computer runs a program, from C and assembly down to circuits. It covers less than the full systems textbook, so it ranks below CS:APP for readers who want depth.

The main differences

Dive into Systems can be used for free; Code requires payment.

Side by side

	Code	Dive into Systems
Score	90.0	87.0
Rank in list	#3 of 11	#6 of 11
Price	PaidSold as a print book; price varies by seller	FreeFree online; low-cost print from No Starch Press
Free to use	No	Yes
Formats	Print	Read online, Print
Author	Charles Petzold	Suzanne J. Matthews, Tia Newhall and Kevin C. Webb
Level	Beginner	Beginner to intermediate
Main focus	From relays and signals up to a processor	How a computer runs programs, from C to circuits
Projects or exercises	No	Yes
Best for	Readers with no technical background	Free first course in computer systems
Strengths	No technical prerequisites Builds from circuits to a processor step by step Second edition published in 2022	Full text free online Interactive tools and exercises on the project site Written for readers with one programming course
Limits	Broad rather than deep on modern processors Little hands-on practice compared with textbooks	Covers less than the full systems textbooks Assumes a first programming course
Links	Visit site	Visit site

Questions about Code vs Dive into Systems

Is Code better than Dive into Systems?: Code ranks higher in our list of computer architecture books (#3 against #6, score 90.0 against 87.0). Code is best for: readers with no technical background. Dive into Systems is best for: free first course in computer systems.
Which is cheaper, Code or Dive into Systems?: Code: Sold as a print book; price varies by seller. Dive into Systems: Free online; low-cost print from No Starch Press.