IBM 1401 programming: the 1407 inquiry terminal - R15
Channel: rolffson's IBM 1401 channel
Date: 2021-11-16

some thoughts about using the 1407 terminal, and whether it was a reasonable accessory

for the 1407 calculatior program shown go to https://rolffson.de/1401/download/Youtube%20Files

get the 1401 simulation at https://rolffson.de

for discussion, see discord channel https://discord.gg/7axrxqfptR

0:00 intro
0:11 lead
0:21 what it's about
0:45 four steps of descending rationality
0:56 normal pocket calculator
1:07 programm on HP 97
1:40 online transaction on /370
3:18 calculator program on 1407
4:26 loading and running
5:09 no timesharing on a 1401 ...
5:26 costs per minute
6:04 the waiting loop
6:18 doing something useful while waiting: Fibonacci
6:45 the problem stays the same
7:30 a 1407 for the operator?
8:21 who knows more about it?
8:40 outro

ERRATA:
- in the program shown in the video, there are missing some commands near line 92 ('errquit'), when typing out the error message. The v2 version uploaded to the download area is correct.
- in the latest simulator version 0.2.15 the 1401 has a flaw in the 1401 division ('%') command; under certain circumstances, a division may lead to strange digits in the result; will be corrected in next release

for the source files for the RRPC /370 transaction, see: https://rolffson.de/1401/download/Youtube%20Files/R15%201407%20calculator/KICKS-RRPC/

for CICS / KICKS installation, see Moshix - KICKS ( CICS ) for IBM MVS 3.8, https://youtu.be/u_ZSH9OagTM

(2021-12-03 chgd. tn)