Identifying CPU and current OS

To: debian-user <debian-user@lists.debian.org>
Subject: Identifying CPU and current OS
From: Richard Owlett <rowlett@access.net>
Date: Sun, 28 Sep 2025 07:00:11 -0500
Message-id: <[🔎] 276ffa8a-b448-369a-9fd6-61a7d878a5ce@access.net>

I may resurrect an former desktop machine as a trouble shooting aid.
I need to know the data bus width.

I know the Debian version number is stored in /etc/debian_version .

How do I find if the installed OS is 32 or 64 bit?
How do I discover the CPU's bus width?

TIA

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