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Wednesday, May 23, 2007

 
 

Programming The IBM 360

Posted By: Efren ES Ricalde @ 7:46 PM
Comments: 2

 



On my junior year at UP College of Engineering at Diliman, one afternoon after collecting the book allowance from GE Scholarship fund at UP Admin building, I took a DM bus in front of the Oblation, got off at Raon and walked towards Claro M. Recto. There, on the strip between Avenida Rizal and FEU are second books for high and college students.

From a pile of second hand books mostly medicine titles, I chanced upon an easy to recognize title - it hase "IBM 360" on its spine. Excited, I pulled it out and browsed through its contents. Jackpot, it was one its kind in the Philippines - "Programming the IBM 360" by Clarence B. Germain, copyright 1967 and published by Prentice-Hall.

Lifting from the Preface, the books contains "As far as practical, the coverages of PL/I, COBOL, and Assembly Language are independent of each other so that the reader may omit topics at will. The book is written for 360 Models 25, 30, 40, 50, 65, 75 and 85."

Its maiden journey in the academic world was at my ES26 (Fortran Programming) class at UP Engg. The machine problems solution in Fortran IV are punched on 80-column IBM cards and processed on an IBM 360/40 of the UP Computer Center beside the chapel.

After which it has gone a long way. After UP, I used it to assemble lessons in teaching Basic Computer Systems (BCS) at Data Center in Avenida and also computer school of Vince Vargas and Dr. Paul Aquino. Teddy Tiu, my former champion at IBM now with AutoCad was one of my COBOL students at a special computer class from Dr. Aquino's office.


During an interview in January 1981 for a designer/programmer post at Brunei Shell, the book was an excellent material for the Programmer Aptitude Exam. Then in July 29, 1981 it was in a check-in box full of books on a PAL flight to Brunei Darussalam. For eight straight years, it stayed with we in several company houses in Panaga, Seria and W51/2, W21 Kuala Belait.

Today and forever, the book will now be part of the digital world - in my blog.














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Comments:
i did a few programs for the ibm 360 myself... one i rememebr was frothe univ of st tomas registrar. I given a limit of 1kb to fit an s\assembely program that would list a sequence of subject in one line. the challenge was makin it fit in core memory!!!
 
Indeed, it was big challenge to run a program with a very limited memory. Also, learning assembly language and using it to develop the more efficient program was for a very select few.

I hope you could be a QA specialist to help some programmers optimize their codes.
 
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  • "MaSci to GSI" is a compendium of experiences from childhood to present. M2G shares my insights and knowledge on education, hard work, integrity, honesty, creativity, transparency, and aspiration of a Filipino. M2G maps my journeys and adventures as a boy, student, dreamer and entrepreneur.
 
 
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Location: Pasig, Metro Manila, Philippines

Efren, President/CEO of GSI, is an experienced public speaker and an avid tennis player, photographer, a beginner classical guitarist. He was the former Chairman of Philippine Geomatics Association (PhilGeo) and is an active member of other IT associations. He has a diploma in Strategic Business Economics from the University of Asia and the Pacific, units in MS Remote Sensing in UP Diliman, BS Geodetic Engineering at UP Diliman and an alumni of Manila Science High School.

 
 

 

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