Blog update: revisiting OS/2

_posts/2015-12-27-revisiting-os2.md

@@ -0,0 +1,42 @@
+---
+layout: post
+title: Revisiting OS/2
+date: 2015-12-27 11:00:00
+category: OS/2
+permalink: /blog/2015/12/27/
+machines:
+  - type: pc-dbg
+    id: ibm5170
+    config: /disks/pc/os2/ibm/1.0/machine.xml
+---
+
+Just for fun (because I have a warped sense of fun), I decided to revisit some of the old OS/2 software I wrote
+almost 30 years ago.  But first, I need an OS/2 development environment.
+
+So I started with a clean install of IBM's OS/2 1.0 in the [8Mhz IBM PC AT](/disks/pc/os2/ibm/1.0/) machine
+below, by booting from the "IBM OS/2 1.0 (1.44M Install)" diskette in drive A and reformatting the machine's 20Mb
+drive C.
+
+Next, I installed the [MS OS/2 SDK 1.02](/disks/pc/tools/microsoft/os2/sdk/1.02/).  This SDK was released around
+December 1987 and included a copy of Microsoft OS/2 1.0.  I don't have any of the printed documentation that came
+with the SDK, such as the *Installation Guide*, but I do have the [Microsoft® Operating System/2 Programmer’s Toolkit](/docs/os2/microsoft/ptk/1.0/)
+from March 1988, thanks to the [OS/2 Museum](http://www.os2museum.com/).
+
+Aside from Microsoft's assembler (MASM) and C compiler, the SDK included some other useful tools, such as **SDKED**
+(SDK Editor), which was essentially an OS/2 port of Mark Zbikowski's **Z** editor that was used internally at
+Microsoft for many years.  The same editor was later renamed to **M** and ultimately **PWB** (Programmer's Workbench).
+With the introduction of various Integrated Development Environment (IDE) products, such as Visual BASIC in 1991,
+Visual C++ in 1993, and Visual Studio in 1995, this stand-alone editor became obsolete, but in the 1980's, it was a
+valuable tool.
+
+You can learn more about [SDKED](/disks/pc/tools/microsoft/os2/sdk/1.02/#using-sdked) on the
+[MS OS/2 SDK 1.02](/disks/pc/tools/microsoft/os2/sdk/1.02/) page.  I'll be adding a complete list of all the files
+that came with SDK to that page in the near future.
+
+To boot IBM OS/2 1.0 and tinker with the [SDK](/disks/pc/tools/microsoft/os2/sdk/1.02/), scroll down and
+click the "Run" button.
+
+{% include machine.html id="ibm5170" %}
+
+*[@jeffpar](http://twitter.com/jeffpar)*  
+*December 27, 2015*