Marc Rochkind's Apps, Books, and Opinions

IBM 701 Emulator for Windows

Now available at Also, the documentation has been updated.

IBM 701 Emulator updated

While finishing off the Windows version, I discovered a bug in the assembler, so I prepared a new version (1.06) for the Mac. Details on the 701 page, which is now linked to from the main page.

Web Site Changes

New top-level site:

You can download photos for free for personal use.

Click here for the whole blog.

IBM 701 Emulator

Emulates IBM's first scientific computer (1953), complete with front panel, I/O peripherals, and 701-like speed. MacOS and Windows.

Verifying and Uploading Large Archives of Photos

ZipVerifier and S3BigUpload are for preparing large image archives and uploading them to Amazon S3 and Glacier. Designed for the backup of last resort, to be retrieved only if all other backups have been destroyed. The emphasis is on verifying that the archive is absolutely correct and that the upload, which could take days, completes and is correct.

Classic Cameras (Updated)

The web version of the iOS Classic Cameras app, now free. Features high-resolution photos of over 100 classic cameras, along with reviews, ads, and lots more. A treat for anyone who's ever shot with a classic film camera.

Until very recently, many of the pages weren't working, but most (maybe all) of them have now been fixed.

Wright Brothers Photographs

Photographs taken by the Wright Brothers themselves, digitized by the Library of Congress from the original glass plates. Contains 183 photographs with captions. Includes many taken at Kitty Hawk, including early gliding experiments and the first flight.

Programming Chrome Apps

Also available from Amazon.

Expert PHP and MySQL

This book captures what I've learned building apps, both the few successes and the many failures. Advanced material, too, such as two-factor authentication and data conversion.

Published by Apress in 2013 and available from Amazon.

Generating PDFs with PHP and FPDF

How to use the free FPDF library to generate PDFs directly from your PHP app.

Published in 2013 and available as an eBook from Amazon.

Advanced UNIX Programming

The first book on UNIX programming, updated in 2004.

Published by Addison-Wesley and available from Amazon.

More Books

All of my books (16 or so), available from Amazon.

Bernie's Bar & Girll

My first novel, which would be a romance, except that the main character is a man. It's got everything: humor, sex, a car chase, a bar fight, a trial, an exposé of Big Oil, and some endearing Creationists.

Published in 2012 and available from Amazon as a $1 eBook, or in paper.

The Man in the Box

My second novel, which is a mystery-romance about two mis-matched twenty-somethings in New York who get swept into trying to solve an old mystery—a very cold case. There are lots of surprises both with the case and with them.

Published in 2018 and available from Amazon as a $1 eBook, or in paper.


Various articles I've written over the years, ranging from mind-numbingly serious to ridiculously silly. Most are in-between.

9/11 Photos and Videos

Possibly the largest collection of 9/11 photos and videos outside of government archives. WARNING: Many of the photos and, especially, the videos are disturbing.

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