Mainframe Assembler Language 2.0

Those that still follow my blog from my days working in the IBM mainframe arena might be interested in the following.

One of the stalwarts of software at IBM, and self described grand poobar of High Level Assembler, John R. Ehrman has a 1300-page 2.0 version of his book “Assembler Language Programming for IBM System z™ Servers ” and it’s available in PDF form here. There are a wealth of other assembler resources that John has contributed here on ibm.com

(My) Influential Women in Tech

Taking some time out of work in the technical, software, computer industry has been really helpful to give my brain time to sift through the required, the necessary, the nice, and the pointless things that I’ve been involved in over 41-years in technology.

international-womens-day-logo1[1]Given that today is International Women’s Day 2016 and numerous tweets have flown by celebrating women, and given the people I follow, many women in Technology. I thought I’d take a minute to note some of the great women in Tech I had the opportunity to work with.

I was fortunate in that I spent much of my career at IBM. There is no doubt that IBM was a progressive employer on all fronts, women, minorities, the physically challenged, and that continues today with their unrelenting endorsement of the LGBT community. I never personally met or worked with current IBM CEO, Ginni Rometty, she like many that I did have the opportunity to work with, started out in Systems Engineering and moved into management. Those that I worked with included Barbara McDuffie, Leslie Wilkes, Linda Sanford and many others.

Among those in management at IBM that were most influential, Anona Amis at IBM UK. Anona was my manager in 1989-1990, at a time when I was frustrated and lacking direction after joining IBM two years earlier, with high hopes of doing important things. Anona, in the period of a year, taught me both how to value my contributions, but also how to make more valuable contributions. She was one of what I grew to learn, was the backbone of IBM, professional managers.

My four women of tech, may at sometime or other, have been managers. That though wasn’t why I was inspired by them.

Susan Malika: Sue, I met Sue initially through the CICS Product group, when we were first looking at ways to interface a web server to the CICS Transaction Monitor. Sue and the team already had a prototype connector implemented as a CGI. Over the coming years, I was influenced by Sue in a number of fields, especially in data interchange and her work on XML. Sue is still active in tech.

Peggy Zagelow: I’d always been pretty dismissive of databases, apart from a brief period with SQL/DS; I’d always managed fine without one. Early on in the days of evangelizing Java, I was routed to the IBM Santa Teresa lab, on an ad hoc query from Peggy about using Java as a procedures language for DB2. Her enthusiasm, and dogma about the structured, relational database; as well as her ability to code eloquently in Assembler was an inspiration. We later wrote a paper together, still available online[here]. Peggy is also still active in the tech sector at IBM.

Donna Dillenberger: Sometime in 1999, Donna and the then President of the IBM Academy of Technology, Ian Brackenbury, came to the IBM Bedfont office to discuss some ideas I had on making the Java Virtual Machine viable on large scale mainframe servers. Donna, translated a group of unconnected ideas and concepts I sketched out on a white board, into the “Scalable JVM”. The evolution of the JVM was a key stepping stone in the IBM evolution of Java. I’m pleased to see Donna was appointed an IBM Fellow in 2015. The paper on the JVM is here.(1).

Gerry Hackett: Finally, but most importantly, Geraldine aka Gerry Hackett. Gerry and I  met when she was a first line development manager in the IBM Virtual Machine development laboratory in Endicott New York, sometime around 1985. While Gerry would normally fall in the category of management, she is most steadfastly still an amazing technologist. Some years later I had the [dubious] pleasure of “flipping slides” for her as Gerry presented IBM Strategy. Aside: “Todays generation will never understand the tension between a speaker and a slide turner.” Today, Gerry is a Vice President at Dell. She recruited me to work at Dell in 2009, and under her leadership the firmware and embedded management team have made steady progress, and implemented some great ideas. Gerry has been a longtime advocate for women in technology, a career mentor, and a fantastic roll model.

Importantly, what all these women demonstrated, by the “bucketload”, was quiet, technological confidence; the ability to see, deliver and celebrate great ideas and great people. They were quiet unlike their male peers, not in achievement, but in approach. This why we need more women in technology, not because they are women, but because technical companies, and their products will not be as good without them.

(1). Edited to link to correct Dillenberger et al paper.

Touch screen and the desktop

I just posted a response over on a CNET discussion topic. As often is the case, rather than write, review, edit and post; I banged away a response and submitted, as always I made a few typo’s, so here is a corrected version.

I’ve just retired from an senior engineering position at Dell, specializing in software and firmware but I also participated in a number of usability studies for hardware/software combinations. I was the originator of the NFC enabled server systems management concept. I’d offer a few thoughts to confirm what some others have said, but also a slightly different perspective.

1. yes reaching across a keyboard to a monitor mounted at the back of a desk is ergonomically unpleasant.

2. Touch is an interesting technology, but for fixed monitors and TV’s etc. it is less than optimal. There are numerous efforts underway to come up with a more responsive, natural way to control a UI. Think X/BOX or Nintendo, or the Samsung SmartTV gestures, voice ala Amazon echo etc.

3. That said, I for one would never go back to a non-touch laptop screen. I can lift my arm from the keyboard and prod the “submit post” button below much quicker that I can use the touchpad, or grab an extrnal mouse and click.

4. If you want a touch screen desktop I’d highly recommend getting an all-in-one with a touch screen and mounting it into a desk. I had one of the Dell XPS 27’s and had an IKEA draftmans desk. We cut a hole 99% the size of the screen; mounted the screen into the hole; secured it with picture wire in a # format across the back. I gave up using a physical keyboard and mouse, bought a Targus Stylus and went 100% touch. The advantage of the IKEA desk is that you can easily angle the surface to one that suits you. Also, it came with a medal lip which stopped things sliding off the edge; also it came with a built in glass area, which was great for to-do lists, notes etc.

One final note, on Touch screen PC’s. As with Windows 10, when switching over to touch screen you have to try to stop doing the way you did them with a mouse and keyboard. The Adobe PDF app for Windows 10, is much easier to use than the Adobe desktop app for Windows 10. Using a drawing program for line art, block diagrams etc. either with your finger, or with a stylus is a huge leap forward to messing about with Word and Powerpoint. In the case of slides, and powerpoint, it made me released me from decades of serial text mode slides.

So rather than ask why so few touch screens for desktop computers. Ask, what are top-5 applications I use, and how could touchscreen make them better, easier, or me more productive. If it’s email, calendar and web browsing, it probably won’t. Although even in those cases, zoom in and zoom out is an improvement.

Retired Until Further Notice

RUFN. I can’t remember where I first saw this, I think on an ex-colleagues linked-in status(*1). Back in September I declared I was done with cube life and it didn’t take long before it was time to part company with Dell.

I’m at an important crossroads, starting to pack up my Austin home, and move to a new house my partner, Kate, and I are building just south east of Boulder CO. Kate is already living in Boulder, where we are partners in Boulder Bodyworker.

So it seemed like an appropriate time to take some time out, and start an exciting new phase of life for me. I’ll be keeping busy, while I don’t have any active movie or music projects at the moment, I am behind on working on a project for Tri Equal and also a member of the advisory board  of the Professional Triathlon Union and continuing generally as an activist in the triathlon community.

I’m available for consulting work in the new year, especially for small to medium sized businesses that want to get an insight or review of their technology strategy; a perspective and advice on working with open source; data center operations.

Otherwise I’ll post here as appropriate and see how things develop next year. Merry Christmas and a Happy New Year

 

*1. Yeah I’m aware of the slang usage.

Dell and EMC together

I’ve been asked a few times about the Dell/EMC merger/acquisition, I can say nothing, not because of financial or security regulations, but because I know nothing at all. Although it was clear some changes were afoot at Dell, the announcement came as a surprise to me.

A couple of things are amusing though in the industry analysis. The most amusing is the quotes coming out of other industry based organizations and their CEO’s. This is a classic of it’s kind, on the Register about Meg Whitman at HP, and then this one from Dietzen the CEO at Pure.

This moves comes out of ‘weakness, not strength’, claims CE Dietzen

Wouldn’t it be great if instead of this entirely predictable FUD a confident CEO would say something to the effect of

The acquisition will be challenging, but we welcome the increased competition and are sure customers and businesses will recognize and continue to benefit from the great products we already have, and those on our roadmap.

Of course no one would ever actually say that, one it doesn’t make headlines, and two because well…

The other thing that’s been disappointing is that other Dell trope, you can’t use Apple products. See as an example The Register:

I have one thing to say to MacBook users at EMC: Whoops

I have to say, I’m always surprised when I hear this kind of thing. Seriously, while I’m sure Michael Dell would prefer everyone use a dell tablet or laptop, I’m sure he’d rather have the most talented, productive people and being acquired and having to use new apps is enough of a productivity hit. Why on earth would he want to want to make it worse by enforcing a move of hardware, software and app paradigms. FYI there are a number of people in Dell Software Group, especially from the Quest acquisition, that have been using Apple products since the Quest acquisition.

The Open Mainframe Project

It would be remiss of me not to mention another new Linux Foundation project, the Open Mainframe project. I’m actually be pretty interested, from a purely personal perspective, to see what this project does and where they plan to take Linux on the mainframe.

I’m glad to see that both Linux on the mainframe, and the ecosystem is still thriving. Having been involved with it heavily back in the late 90’s, and writing essentially the only public strategy in the original and republished IBM Redbook “Linux for S/390”. The first four chapters were mine.

I can recall with great fondness discussing with them head of IBM Systems Group, and future IBM CEO, Sam Palmisano and many others, the real reason Linux would be key to future success, it’s freedom. With India and China coming on stream as technology powerhouses, with millions of future programmers, it was clear that they would learn on Linux.

Even Windows was still the most pervasive operating system in 1998-2000, it was clear from anyone who understood technical people that Linux would influence not jut code, but threading, languages, library structures, call interfaces and more at the system level. For no other reason than people can study the source, learn from it, adapt it etc. and that was a train IBM couldn’t stop, we needed to be on board before the train left without us. There is a good NY Times article from the period here.

Good luck to the Open Mainframe project.

Linux Foundation Core Infrastructure Initiative

In a discussion recently I was asked about the Linux Foundation Converged Infrastructure Initiative and if it was still active?

Indeed it is, they’ve made some great progress on funding and supporting open source projects, and there are some interesting developments coming before the end of the year. CII has funded a number of projects through their grants process, you can read more of the some of the projects, and help with prioritization.

It’s not the nature of the CII to broadcast its’ work, the best measure of success are no vulnerabilities in the projects they are supporting. Projects funded following on from the initial OpenSSL, include:

  • Network Time Protocol (NTP)
  • GnuPG
  • OpenSSH
  • Debian Reproduceable Builds
  • The Fuzzing Project
  • False-Positive-Free Testing with Frama-C

Details of the grants etc. are here. Also, I’ve finally added my profile to the CII web site, as seen here

.CII Profile


About & Contact

I'm Mark Cathcart, formaly a Senior Distinguished Engineer, in Dells Software Group; before that Director of Systems Engineering in the Enterprise Solutions Group at Dell. Prior to that, I was IBM Distinguished Engineer and member of the IBM Academy of Technology. I'm an information technology optimist.

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