From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,124905131f269735 X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2001-09-26 14:25:14 PST Path: archiver1.google.com!newsfeed.google.com!sn-xit-02!supernews.com!newsfeed.direct.ca!look.ca!sunqbc.risq.qc.ca!howland.erols.net!npeer.kpnqwest.net!news.edf.fr!not-for-mail From: Pascal Obry Newsgroups: comp.lang.ada Subject: Re: gnat and heap size Date: 26 Sep 2001 23:16:27 +0200 Organization: Home - http://perso.wanadoo.fr/pascal.obry Sender: obry@PASCAL Message-ID: References: <1001442590.557811@news.drenet.dnd.ca> <%26s7.4950$ev2.8194@www.newsranger.com> <9oqs5k$jjq$1@nh.pace.co.uk> <9osjpt$a5l$1@nh.pace.co.uk> <9osq5a$crn$1@nh.pace.co.uk> NNTP-Posting-Host: 163.107.131.3 Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: clnews.edf.fr 1001539078 8558 163.107.131.3 (26 Sep 2001 21:17:58 GMT) X-Complaints-To: newsadm@news.edf.fr NNTP-Posting-Date: 26 Sep 2001 21:17:58 GMT User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.0.105 Xref: archiver1.google.com comp.lang.ada:13418 Date: 2001-09-26T21:17:58+00:00 List-Id: "Marin David Condic" writes: > I doubt that it would be practically possible to construct a disk big > enough to hold 2**64 bytes of data as a result. :-) Well well... Somebody said that only 3 or 4 ENIAC would be needed in the world because it was so powerful... What about holographic memory :) << Holographic memory offers the possibility of storing one terabyte (TB) of data in a sugar-cube-sized crystal. A terabyte of data equals 1,000 gigabytes, 1 million megabytes or 1 trillion bytes. Data from more than 1,000 CDs could fit on a holographic memory system. Most computer hard drives only hold 10 to 40 GB of data, a small fraction of what a holographic memory system might hold. There are several reasons for developing a three-dimensional data storage. It will be able to store more information in a smaller space and offer faster data transfer times. In this edition of How Stuff Will Work, you will learn how a holographic storage system might be built in the next three or four years, and what it will take to make a desktop version of such a high-density storage system. >> Ok, that's only 1 terabyte on a sugar-sized disk... But what about next revolution, the one that will dwarfed out the holographic memory :) Pascal. -- --|------------------------------------------------------ --| Pascal Obry Team-Ada Member --| 45, rue Gabriel Peri - 78114 Magny Les Hameaux FRANCE --|------------------------------------------------------ --| http://perso.wanadoo.fr/pascal.obry --| --| "The best way to travel is by means of imagination"