From Job Scheduling to Real Time Systems: Two HNG Internship Tasks That Stayed W

<h2> 1. Intro — The Problem We Actually Had </h2> <p>Building real-time systems is often presented as a distributed systems problem.</p> <p>Kafka, stream processors, event buses,

<p>You open amazon.com. A product page loads in under a second. Behind that single page load, your request hit a DNS server, bounced through a CDN edge node, passed a rate

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<p>Modern applications thrive on instant updates — from live chats and notifications to collaborative tools and trading dashboards. Traditional HTTP requests can only go so far

<p>I got an email from Vercel.</p> <p>"You've used 75% of your free plan resources."</p> <p>I ignored it.</p> <p>A few hours later, I was at 100%.</p> <p>I'd been building

<h2> <em>Why this distinction matters far beyond healthcare</em> </h2> <p>One of the most helpful ways to understand modern software architecture is to distinguish between