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Latency: What It Is and What Limits It (Part II)
Where delays hide in the stack, how they add up, and how to measure them.
Sep 11
•
Franco Fernando
8
3
Latency Is Not a Single Number
What latency really is. The physics and math that bound it, and why the average always lies.
Sep 4
•
Franco Fernando
11
2
August 2026
Exception Handling in Practice
Patterns and anti-patterns for signaling, catching, and surviving failures in your code.
Aug 28
•
Franco Fernando
13
3
Logistic Regression
How a classification model learns to predict probabilities instead of flat yes/no answers.
Aug 21
•
Franco Fernando
8
1
Disjoint Sets: From Linear to Almost Constant Time
Tracking which items belong to the same group looks trivial, until your inputs get big.
Aug 14
•
Franco Fernando
6
1
IP Addressing, Part III: Inside the IP Packet
What actually travels on the wire: the IPv4 header, fragmentation, and what IPv6 changed.
Aug 7
•
Franco Fernando
12
1
IP Addressing, Part II: Scaling IPv4 Across the Internet
How classful addressing gave way to CIDR, and how private addresses and NAT kept the world from running out of IPv4.
Aug 1
•
Franco Fernando
9
2
July 2026
The Anatomy of an IPv4 Address (Part I)
How an IPv4 address is built, what a subnet mask does, and how a device determines the network it belongs to.
Jul 25
•
Franco Fernando
17
3
The Perceptron
How the simplest classification model works, and why it is the building block of every neural network.
Jul 18
•
Franco Fernando
11
4
How the Operating System Runs Many Tasks on One CPU
Multitasking, context switching, and the scheduler that makes it all work.
Jul 11
•
Franco Fernando
21
2
When to repeat yourself
When duplicated code is the better tradeoff.
Jul 4
•
Franco Fernando
29
2
3
June 2026
The Training Trap: Underfitting, Overfitting, and How to Escape Them
A practical guide to the most common problems in machine learning training and the techniques to solve them.
Jun 27
•
Franco Fernando
11
1
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