Article Computer Repair ★ Featured

PC Powers On But No Display — No POST Diagnosis

Systematic approach when a machine shows power LEDs but a black screen.

no POST black screen no display power on motherboard

2 views Mar 30, 2026

Article Data & Platform ★ Featured

Introduction to Data Pipelines

What a data pipeline is, the core stages, and when to build vs buy.

data pipeline ETL ELT ingest transform

1 views Mar 30, 2026

Article Data & Platform ★ Featured

Data Governance — Principles and Practical Implementation

Ownership, cataloguing, lineage tracking, and access control at scale.

data governance data catalog lineage DataHub access control

1 views Mar 30, 2026

Article Computer Repair

GPU Troubleshooting — Artifacts, Crashes, and No Signal

Diagnose and fix graphics card issues from driver corruption to hardware failure.

GPU graphics card artifacts driver DDU

3 views Mar 30, 2026

Article Computer Repair

Replace a Cracked or Dead Laptop Screen

How to source, order, and install a replacement laptop LCD panel.

laptop screen LCD replacement cracked screen eDP iFixit

2 views Mar 30, 2026

Article Computer Repair

How to Diagnose a Failing Power Supply

Testing PSU output, identifying failure symptoms, and safely replacing it.

PSU power supply paperclip test failure diagnosis

2 views Mar 30, 2026

Article Data & Platform

Change Data Capture (CDC) — Debezium and Log-Based CDC

How CDC works, why it beats polling, and how to implement it with Debezium.

CDC change data capture Debezium Kafka WAL

1 views Mar 30, 2026

Article Computer Repair

Replace the CMOS Battery (Fixing Date/Time Reset)

How to identify a dead CMOS battery and replace it on desktops and laptops.

CMOS battery CR2032 date reset BIOS motherboard

1 views Mar 30, 2026

Article Computer Repair

PC Won't Turn On — Zero Power Diagnosis

Methodical troubleshooting when pressing the power button does nothing at all.

PC wont turn on no power power button PSU CMOS

1 views Mar 30, 2026

Article Data & Platform

Trino (formerly PrestoSQL) — Federated SQL Across Data Sources

Architecture, connectors, query federation, and performance tuning.

Trino Presto federated query SQL Iceberg

2 views Mar 30, 2026