Re: ancient floating point, These days what percentage of a CPU's work involves doing arithmetic computations

Hans-Peter Diettrich <>
Sat, 17 Jul 2021 23:14:19 +0200

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From: Hans-Peter Diettrich <>
Newsgroups: comp.compilers
Date: Sat, 17 Jul 2021 23:14:19 +0200
Organization: Compilers Central
References: 21-07-004 21-07-012 21-07-016
Injection-Info:; posting-host=""; logging-data="38412"; mail-complaints-to=""
Keywords: architecture, history
Posted-Date: 17 Jul 2021 17:42:32 EDT
In-Reply-To: 21-07-016
Content-Language: de-DE

On 7/16/21 6:31 PM, Philipp Klaus Krause wrote:

> [I've seen the replica Z1, which is entirely mechanical. I didn't realize
> it used floating point. -John]

Horst Zuse claims the Z1 had 22 bit floating point arithmetic.


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