test-drb

test-drb@ccmp.vtda.org

101090 discussions

by jnc＠mercury.lcs.mit.edu

> From: Fritz Mueller > Thanks, Noel -- I'll give that a try! Sure - always glad to help with anything V6 related - that's my chief technical amusement, now that I'm retired! :-) Any questions/issues, let me know, and I'll try and get right back. When booting UNIX, remember make sure the switches on your /45 are set to 0173030, so it comes up single-user! (Might we worth checking to see if all the bits in the SR are working, but you've probably already done that as part of bringing the machine up? I wonder if a failure there could cause the RSTS issue? It's so cool that you have a working /45! I have yet to start on mine...) And do icheck/dcheck every time you bring it up, and make sure to 'sync' before halting... These old systems are not as robust in terms of the file system! And when it gets to putting together a /45 version of the OS, that new page I just did should help. Noel

7 years, 7 months

VueSCAN

by cctalk＠ibm51xx.net

Does anyone know if old versions of VueSCAN worked on anything below XP (e.g. Win 9x, 2K or even gasp 3.x)? Thanks. -Ali

7 years, 7 months

PDP-11/45 RSTS/E boot problem

by jnc＠mercury.lcs.mit.edu

> I guess I'll do up a cheat sheet. OK, first crack here: http://gunkies.org/wiki/Upgrading_UNIX_Sixth_Edition If there are any improvement I can/should make, please let me know. Thanks! Noel

7 years, 7 months

VueSCAN

by couryhouse＠aol.com

no only hp scan jets no other brands and only the first few models.? thanks though. Sent from AOL Mobile Mail On Monday, January 7, 2019 Fred Cisin via cctalk <cisin at xenosoft.com; cctalk at classiccmp.org> wrote: On Mon, 7 Jan 2019, ED SHARPE via cctalk wrote: > my foggy? brain? remembers them? as? I retied? ?the biz? end of > things? before? ? win 95? ?came out. About 1992. After Windoze 3.00 (I got "beta" Windoze 3.10 in August 1991, public release soon after?), and about the time of 3.11 I have a couple of parallel/SCSI scanners new? in box to get rid of.? I don't know if their drivers were TWAIN.

7 years, 7 months

VueSCAN

by couryhouse＠aol.com

my foggy? brain? remembers them? as? I retied? ?the biz? end of things? before? ? win 95? ?came out. and? I? seem to remember? twain? as a term? used? with hp scanjets? before retirement.\ when i? ?left? ?scanjet? ?2c? was? current? color? product.]anyone? coming thou? az? ?with a? scanjet iic? in the? car...? it? would? be? welcome here..we? have? an orig? ?hpscanjet? b/w? ?but? can use another one? for an offsite? display also. ed sharpe archivist for smecc In a message dated 1/7/2019 2:11:37 PM US Mountain Standard Time, cctalk at classiccmp.org writes: > On Thu, 20 Dec 2018 at 02:39, Ali via cctalk <cctalk at classiccmp.org> wrote:>>? I wonder if there were ever any TWAIN drivers for Win 3.x..... Yes, but I think that you needed WIN32S installed. On Mon, 7 Jan 2019, Liam Proven via cctalk wrote:> This is stretching my powers of recollection -- and in my world, back> then, if you could afford (and wanted) a scanner, you used a Mac --> but I think so, yes. 1) some could not afford Mac? (rarely any in the skip)2) some did not have control over employer's purchasing decisions3) depending on what was being scanned, other factors influenced platform > We are all aware of what that acronym means, yes? But few pay any attention to any technology without an interesting name.And of those who do and the rest, never the twain shall meet. --Grumpy Ol' Fred? ? ??? ??? cisin at xenosoft.com

7 years, 7 months

PDP-11/45 RSTS/E boot problem

by jnc＠mercury.lcs.mit.edu

> From: Fritz Mueller > All the CPU, FPU, KT11, KW11, and RK11 MAINDECS are passing just fine. Don't forget Vonada Maxim #12: "Diagnostics are highly efficient in finding solved problems." :-) Noel

7 years, 7 months

off topic - capatob - saratov2 computer Russsian pdp8

by technoid6502＠gmail.com

On Sun, 2019-01-06 at 12:00 -0600, cctalk-request at classiccmp.org wrote: > Re: off topic - capatob - saratov2 computer Russsian pdp8 Nothing has changed as regards the number of bits in a byte, a nybble is 4 bits, 8 to the byte, and x to the word - this last varies widely depending on architecture. Still, in Spirit, on an octal processor a whole number is a six bit 'byte', so the term is appropriate, especially to avoid confusion with the word size of two six bit 'bytes'. Fun. Jeff

7 years, 7 months

off topic - capatob - saratov2 computer Russsian pdp8

by jnc＠mercury.lcs.mit.edu

> From: Dave Wade > The only machine I know where a "byte" is not eight bits is the > Honeywell L6000 and its siblings I'm not sure why I bother to post to this list, since apparently people don't bother to read my messages. >From the "pdp10 reference handbook", 1970, section 2.3, "Byte Manipulation", page 2-15: "This set of five instructions allows the programmer to pack or unpack bytes of any length from anywhere within a word. ... The byte manipulation instructions have the standard memory reference format, but the effective address E is used to retrieve a pointer, which is used in turn to locate the byte ... The pointer has the format 0 5 6 11 12 13 14 17 18 35 P S I X Y where S is the size of the byte as a number of bits, and P as its position as the number of bits remaining at the right of the byte in the word ... To facilitate processing a series of bytes, several of the byte instructions increment the pointer, ie modify it so that it points to the next byte position in a set of memory locations. Bytes are processed from left to right in a word, so incrementing merely replaces the current value of P by P-S, unless there is insufficient space in the present location [i.e. 'word' - JNC] for another byte of the specified size (P-S < 0). In this case Y is increased by one to point at the next consecutive location, and P is set to 36 - S to point to the first byte at the left in the new location." Now imagine implementing all that in FLIP CHIPs which held transistors (this is before ICs)! Anyway, like I said, at least ITS (of the PDP-10 OS's) used this to store ASCII in words which contain five 7-bit _bytes_. I don't know if TENEX did. > I also feel the use of the term Octet was more marketing to distance > ones machines from IBM..... Huh? Which machine used the term 'octet'? Like I said, we adapted and used the term 'octet' in TCP/IP documentation (and that's definite - go check out historical documents, e.g. RFC-675 from 1974) because 'byte' was at the time ambiguous - the majority of machines on the ARPANET at that point were PDP-10's (see above). Interestingly, I see it's not defined in that document (or in the earlier RFC-635), so it must have already been in use for an 8-bit quantity? Doing a little research, there is a claim that Bob Bemer independently invented the term in 1965/66. Perhaps someone subconciously remembered his proposal, and that's the ultimate source? The term is also long used in chemistry and music, of course, so perhaps that's where it came from. Noel

7 years, 7 months

Decus #8-250 Fast Fourier Transform

by djg＠pdp8online.com

Anybody on the list get these tapes? https://www.ebay.com/itm/Decus-8-250-Fast-Fourier-Transform-FFT-Software-on… I missed seeing that auction.

7 years, 7 months

ISO - 386 or 486 system or cplt mobo

by drlegendre＠gmail.com

I'm interested in finding a 386 or slow 486 machine or moboj ust for playing DOS games. Does anyone have such a thing sitting around, looking for a home? Thanks in advance.

7 years, 7 months

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