---
title: Virtel Blog - Mainframe modernization and security | cics
description: "cics | In this blog you will find helpful information to fully benefit from your z/OS systems: \nLearn more about 3270 emulation, modernization, and security. \nOptimize your mainframe costs and train your teams to z skills.\nStay informed with the latest news in the industry."
---

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### [TN3270, 3270 terminal, 3270 applications… What is 3270 ?](https://blog.virtelweb.com/tn3270-3270-terminal-3270-applications)

 by [Julien DUMEZ](https://blog.virtelweb.com/author/julien-dumez) on April 21, 2021

In our articles or on the web, you’ve no doubt come across the term « 3270 ». Though it may be common knowledge for...

[Read More](https://blog.virtelweb.com/tn3270-3270-terminal-3270-applications)

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