From: Shri Amit Newsgroups: comp.sys.intel,alt.folklore.computers Subject: intel 4004 memory Date: Mon, 05 Jan 1998 13:17:54 -0600 Organization: Scalable Computing Lab Lines: 10 Message-ID: <34B131E2.3B54@scl.ameslab.gov> NNTP-Posting-Host: megaera.scl.ameslab.gov Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Mailer: Mozilla 3.0Gold (X11; I; IRIX 6.2 IP22) Path: ccw.ch!aetna.dolphins.ch!news.planetc.com!leto.ou.edu!arclight.uoregon.edu!logbridge.uoregon.edu!sunqbc.risq.qc.ca!newsxfer.itd.umich.edu!newsrelay.iastate.edu!news.iastate.edu!not-for-mail I am trying to find out what kind of memory was used with the Intel 4004 chip. In particular I'd interested in its size and latency. Any answers or clues are highly appreciated. -- Shri Amit Phone: (515) 294-1918 Research Associate Fax: (515) 294-4491 Scalable Computing Lab Email: amit@scl.ameslab.gov Ames Lab, Ames, IA URL: http://www.public.iastate.edu/~amit ###### Message-ID: Newsgroups: comp.sys.intel,alt.folklore.computers Subject: Re: intel 4004 memory References: <34B131E2.3B54@scl.ameslab.gov> From: halbert@bbn.com (Dan Halbert) Lines: 36 Date: Sat, 03 Jan 1998 20:00:43 GMT NNTP-Posting-Host: franklin.bbn.com NNTP-Posting-Date: Sat, 03 Jan 1998 15:00:43 EST Path: ccw.ch!aetna.dolphins.ch!news.planetc.com!leto.ou.edu!hammer.uoregon.edu!vixen.cso.uiuc.edu!logbridge.uoregon.edu!newsfeed.internetmci.com!206.229.87.25!news-peer.sprintlink.net!news.sprintlink.net!Sprint!cpk-news-hub1.bbnplanet.com!news.bbnplanet.com!cam-news-reader1.bbnplanet.com!not-for-mail Shri Amit writes: >I am trying to find out what kind of memory was used with the Intel 4004 >chip. In particular I'd interested in its size and latency. I have the original data sheets for the "MCS-4 Micro Computer Set" (November 1971) in front of me. The 4004 CPU chip had companion 4001 ROM and 4002 RAM chips. Both the 4001 and 4002 also had I/O lines for talking to the outside world. A 4004 instruction cycle was 8 or 16 cycles of a 750 kHz clock, depending on whether it was a 1 or 2 word (byte) instruction. From the timing diagrams, it appears that the ROM would respond in one clock cycle. Reading the RAM required sending the address in one instruction, and getting the data in the next, though it appears that the RAM cycle time was actually quite a bit faster than that. The 4001 ROM was 256 words by 8 bits. The 4002 RAM was 320 bits composed of 4 registers of 20 4-bit characters: 16 "main memory" characters and 4 "status" characters. There are separate instructions for fetching the main memory or status characters. Multiple 4001's and 4002's could be used. From the data sheet: "The MCS 4 can have up to 4K x 8 bit ROM words, 1280 x 4 bit RAM characters and 128 I/O lines, without requiring any interface logic. By adding a few simple gates, the MCS-4 can have up to 48 RAM and ROM packages in any copmbination and 192 I/O lines." Regards, Dan Halbert ###### From: tsw@cagent.com (Tom Watson) Newsgroups: comp.sys.intel,alt.folklore.computers Subject: Re: intel 4004 memory Date: Mon, 05 Jan 1998 16:41:27 -0800 Organization: CagEnt, Inc. Lines: 23 Message-ID: References: <34B131E2.3B54@scl.ameslab.gov> NNTP-Posting-Host: alfred.cagent.com Cache-Post-Path: alfred.cagent.com!unknown@cypher.cagent.com Path: ccw.ch!aetna.dolphins.ch!news.planetc.com!leto.ou.edu!hammer.uoregon.edu!csulb.edu!logbridge.uoregon.edu!newsfeed.direct.ca!newshub1.home.com!news.home.com!news.rdc1.sfba.home.net!cypher.cagent.com!user In article <34B131E2.3B54@scl.ameslab.gov>, Shri Amit wrote: > I am trying to find out what kind of memory was used with the Intel 4004 > chip. In particular I'd interested in its size and latency. > > Any answers or clues are highly appreciated. > No definite data, but some clues: The 4004 was used (originally) in a calculator design. The chip (as I rememver it) used for "memory" was a 4002 (part of the family). It stored data in 4 bit (bcd stuff) chunks, and had 16 digits, and some "exponent" (??) parts. Someone will probably dig out the 1972 (or so) data books that describe a good chunk of this and post it. Of course, if MEHjr is looking, he could answer it. -- tsw@cagent.com (Home: tsw@johana.com) Please forward spam to: annagram@hr.house.gov (my Congressman), I do. ###### From: Jerry Lopez Newsgroups: comp.sys.intel,alt.folklore.computers Subject: Re: intel 4004 memory Date: Mon, 05 Jan 1998 17:37:09 -0800 Organization: Diversified Technical Services Lines: 21 Message-ID: <68rngh$asn@bgtnsc03.worldnet.att.net> References: <34B131E2.3B54@scl.ameslab.gov> Reply-To: jlopez-auburndale@worldnet.att.net NNTP-Posting-Host: 12.70.2.38 Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Mailer: Mozilla 3.0C-WorldNet (Win16; I) Path: ccw.ch!aetna.dolphins.ch!news.planetc.com!leto.ou.edu!hammer.uoregon.edu!csulb.edu!logbridge.uoregon.edu!news.maxwell.syr.edu!news-peer.sprintlink.net!news.sprintlink.net!Sprint!worldnet.att.net!newsadm Shri Amit wrote: > > I am trying to find out what kind of memory was used with the Intel 4004 > chip. Wow, are they still in use.... In particular I'd interested in its size and latency. > > Any answers or clues are highly appreciated. > > -- > Shri Amit Phone: (515) 294-1918 > Research Associate Fax: (515) 294-4491 > Scalable Computing Lab Email: amit@scl.ameslab.gov > Ames Lab, Ames, IA URL: http://www.public.iastate.edu/~amit -- ###### From: eyal@accord.co.il Newsgroups: comp.sys.intel,alt.folklore.computers Subject: Re: intel 4004 memory Date: Wed, 07 Jan 1998 19:15:40 +0200 Organization: Accord Video Telecommunications ltd. Lines: 16 Message-ID: <34B3B83C.761@accord.co.il> References: <34B131E2.3B54@scl.ameslab.gov> NNTP-Posting-Host: 199.203.164.46 Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Mailer: Mozilla 3.01Gold (Win95; I) To: Shri Amit Path: ccw.ch!aetna.dolphins.ch!news.planetc.com!atl-news-feed1.bbnplanet.com!cpk-news-hub1.bbnplanet.com!news.bbnplanet.com!news-peer.gip.net!news-dc.gip.net!news.gsl.net!gip.net!news.NetVision.net.il!not-for-mail Shri Amit wrote: > > I am trying to find out what kind of memory was used with the Intel 4004 > chip. In particular I'd interested in its size and latency. > > Any answers or clues are highly appreciated. > > -- > Shri Amit Phone: (515) 294-1918 > Research Associate Fax: (515) 294-4491 > Scalable Computing Lab Email: amit@scl.ameslab.gov > Ames Lab, Ames, IA URL: http://www.public.iastate.edu/~amit Here is a web site which you can find some answer to your question: http://www.op.net/docs/Computer-Folklore/4004_announcement ###### From: eyal@accord.co.il Newsgroups: comp.sys.intel,alt.folklore.computers Subject: Re: intel 4004 memory Date: Wed, 07 Jan 1998 19:16:33 +0200 Organization: Accord Video Telecommunications ltd. Lines: 16 Message-ID: <34B3B871.286D@accord.co.il> References: <34B131E2.3B54@scl.ameslab.gov> NNTP-Posting-Host: 199.203.164.46 Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Mailer: Mozilla 3.01Gold (Win95; I) To: Shri Amit Path: ccw.ch!aetna.dolphins.ch!news.planetc.com!leto.ou.edu!news.ecn.uoknor.edu!news.eng.convex.com!newsgate.duke.edu!nntprelay.mathworks.com!news-peer.gip.net!news-dc.gip.net!news.gsl.net!gip.net!news.NetVision.net.il!not-for-mail Shri Amit wrote: > > I am trying to find out what kind of memory was used with the Intel 4004 > chip. In particular I'd interested in its size and latency. > > Any answers or clues are highly appreciated. > > -- > Shri Amit Phone: (515) 294-1918 > Research Associate Fax: (515) 294-4491 > Scalable Computing Lab Email: amit@scl.ameslab.gov > Ames Lab, Ames, IA URL: http://www.public.iastate.edu/~amit Here is a web site where you can find some answers to your question: http://www.op.net/docs/Computer-Folklore/4004_announcement ###### From: Eyal Friedman Newsgroups: comp.sys.intel,alt.folklore.computers Subject: Re: intel 4004 memory Date: Wed, 07 Jan 1998 19:18:25 +0200 Organization: NetVision LTD. Lines: 18 Message-ID: <34B3B8E1.1224@accord.co.il> References: <34B131E2.3B54@scl.ameslab.gov> NNTP-Posting-Host: 199.203.164.46 Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Mailer: Mozilla 3.01Gold (Win95; I) Path: ccw.ch!aetna.dolphins.ch!news.planetc.com!atl-news-feed1.bbnplanet.com!cpk-news-hub1.bbnplanet.com!news.bbnplanet.com!news-peer.gip.net!news-dc.gip.net!news.gsl.net!gip.net!news.NetVision.net.il!not-for-mail Shri Amit wrote: > > I am trying to find out what kind of memory was used with the Intel 4004 > chip. In particular I'd interested in its size and latency. > > Any answers or clues are highly appreciated. > > -- > Shri Amit Phone: (515) 294-1918 > Research Associate Fax: (515) 294-4491 > Scalable Computing Lab Email: amit@scl.ameslab.gov > Ames Lab, Ames, IA URL: http://www.public.iastate.edu/~amit Here is a web site where you can find some answers to your question: http://www.op.net/docs/Computer-Folklore/4004_announcement It is taken from this news group, dated Jan 93!!! ###### From: bob@skirrid.demon.co.uk (Bob Moffitt) Newsgroups: comp.sys.intel,alt.folklore.computers Subject: Re: intel 4004 memory Date: Sat, 10 Jan 1998 19:12:46 GMT Message-ID: <884460675.29217.0.nnrp-04.c2de176c@news.demon.co.uk> References: <34B131E2.3B54@scl.ameslab.gov> <68rngh$asn@bgtnsc03.worldnet.att.net> NNTP-Posting-Host: skirrid.demon.co.uk X-NNTP-Posting-Host: skirrid.demon.co.uk [194.222.23.108] X-Newsreader: Forte Free Agent 1.0.82 Lines: 29 Path: ccw.ch!aetna.dolphins.ch!news.planetc.com!newsfeed.usit.net!solaris.cc.vt.edu!newsgate.duke.edu!nntprelay.mathworks.com!news.idt.net!dispose.news.demon.net!demon!news.demon.co.uk!demon!skirrid.demon.co.uk!not-for-mail Jerry Lopez wrote: >Shri Amit wrote: >> >> I am trying to find out what kind of memory was used with the Intel 4004 >> chip. >Wow, are they still in use.... >In particular I'd interested in its size and latency. >> >> Any answers or clues are highly appreciated. >> >> -- >> Shri Amit Phone: (515) 294-1918 >> Research Associate Fax: (515) 294-4491 >> Scalable Computing Lab Email: amit@scl.ameslab.gov >> Ames Lab, Ames, IA URL: http://www.public.iastate.edu/~amit >-- Yes. Was using a Honeywell L6 as an FEP two years ago, they were 4004 based, used 4116 memory I think. Bob Moffitt Recycle: Once is never enough bob@skirrid.demon.co.uk(no-spam-please) Remove braces to reply. http://www.skirrid.demon.co.uk/