this post was submitted on 27 Jul 2023
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Computer History aka Tech Time Travelers

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Welcome to Computer History.

We are nolstagia driven with our choice of posts and discussion of the impact of technology.

A lot of what ends up posted here has a bias towards the 1970s' up until now simply because "we" experienced a lot of this "new" technology directly as it was released.

Our community goal is to become more than just a collection of links-- we want to be a community of shared experience.

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The IBM mainframe: How it runs and why it survives (arstechnica.com)
submitted 1 year ago by videodrome@lemmy.capebreton.social to c/computerhistory@lemmy.capebreton.social
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Mainframe computers are often seen as ancient machines—practically dinosaurs. But mainframes, which are purpose-built to process enormous amounts of data, are still extremely relevant today. If they’re dinosaurs, they’re T-Rexes, and desktops and server computers are puny mammals to be trodden underfoot.

It’s estimated that there are 10,000 mainframes in use today. They’re used almost exclusively by the largest companies in the world, including two-thirds of Fortune 500 companies, 45 of the world’s top 50 banks, eight of the top 10 insurers, seven of the top 10 global retailers, and eight of the top 10 telecommunications companies. And most of those mainframes come from IBM.

In this explainer, we’ll look at the IBM mainframe computer—what it is, how it works, and why it’s still going strong after over 50 years.

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