9 Oct
2008
9 Oct
'08
1:52 p.m.
On 08 Oct 2008 22:28:12, Chuck Guzis wrote:
On 9 Oct 2008 at 1:12, Dennis Boone wrote:
Why right you are. For those of you who aren't reading at home, these
mnemonics mean:
SPIM: Space immediate (1-3 lines)
SKIP: Skip immediate (to carriage control channel)
SKAP: Skip after printing (carriage control)
SPAP: Space after printing (1-3 lines)
All of these were control instructions that referenced the printer (unit #9). The
carriage control tape was a standard 12 channel one (IBM used them on LOTS of printers
like 407's and 1403's). You could access any one of the 12 channels. The 1620
had two indicators for "summary line" (channel 9) and "end of printable
page" (channel 12), which if you have a hard copy impact printer are probably still
there. Yes, if you skipped to a channel that WASN'T punched, you fed lots of paper,
which is why (if you were smart) you punched the unused channels on the same line as the
"end of paper" channel (12).
Oh, standard Fortran: blank, single space; 1, top of form; 0, double space; +, overprint
(not supported everywhere). Feel free to consult your friendly Unix man page for the
program 'asa' for further reference.
One of these days I'll dig out the computer pic I made back in the late 60's using
a video camera connected to an 1130. 16 levels of gray, and 200x160 or so resolution.
Cool for the day!
> Some funny words just came into my head in
>connection with printers:
> SPIM, SKIP, SKAP, SPAP. Can't remember the system >or language they
> were associated with--although I'm certain it wasn't >CDC.
No, I don't think so. Probably IBM--maybe 1620 SPS II >printer
mnemonics?
Cheers,
Chuck