Civil Rights
Movements, leaders, victories and the continuing fight for equality.
Explore the people, places, events, achievements, struggles and stories that shaped our journey.
Movements, leaders, victories and the continuing fight for equality.
Innovation, patents, science, technology and world-changing contributions.
Pioneers, champions, Negro Leagues, records, activism and excellence.
Meet the people whose lives, choices and achievements shaped the journey.
Black towns, communities, institutions and places where history happened.
Moments that changed communities, movements, institutions and the nation.
In 1968 Shirley Chisholm became the first Black woman elected to the United States Congress. In 1972 she launched a campaign for the Democratic presidential nomination, breaking another political barrier.
MORE →Reflects the personal views, recollections, and perspective of the author, Mike Davis.
This is a personal recollection on the Move fire on May 13, 1985
The modular debugger (mdb) is an extensible, low-level debugger developed by Sun Microsystems for the Solaris 7 operating system. It is now open sourced, under the Common Development and Distribution License (CDDL).
Its source code is now available in all open source derivatives of Solaris, such as Illumos.[1]
The mdb project was started in 1997 by Mike Shapiro and others when the Solaris operating system was adding support for 64-bit architectures. Up until that point, Solaris was using the aging adb debugger developed by Steve Bourne (initially for Seventh Edition UNIX[2]).
It was very difficult to simply port adb from a 32-bit architecture to a 64-bit architecture, so Sun engineers decided to make a new debugger that would feature enhanced debugging capabilities, while being backward compatible with adb.
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The modular debugger (mdb) is an extensible, low-level debugger developed by Sun Microsystems for the Solaris 7 operating system. It is now open sourced, under the Common Development and Distribution License (CDDL). Its source code is now available in all open source derivatives of Solaris, such as Illumos.
Michael W. Shapiro is an American computer programmer who worked in operating systems and storage at Sun Microsystems, Oracle, and EMC. While working at Sun Microsystems, Shapiro developed pgrep, the Modular Debugger (MDB), DTrace, fault management and diagnosis, and other software for Sun's Solaris operating system. The pgrep and pkill utilities Shapiro created are today found in every major Unix operating system, including Linux, BSD, and macOS, and are commonly used by system administrators and developers. Shapiro and the DTrace team received a Technology Innovation Award and Overall Gold Medal for Innovation for DTrace from The Wall Street Journal in 2006. DTrace was also recognized by USENIX with the Software Tools User Group (STUG) award in 2008. Over the next 10 years, DTrace was ported and incorporated into other major operating systems, including BSD and Apple's macOS. Starting in 2006, Shapiro led Sun's engineering effort to build a commercial storage product using Solaris and Sun's ZFS filesystem, announced in 2008. In interviews with the New York Times and Fortune, Shapiro explained how a small engineering team at Sun dubbed "Fishworks" pitched the project to Sun's executives and developed the product outside of Sun's organizational structure. After Oracle Corporation acquired Sun, Shapiro managed engineering for storage products as Vice President for Storage. Oracle reported in 2015 that the ZFS Storage product line had surpassed $1 billion in revenue. Shapiro announced his departure from Oracle in a 2010 blog posting, and was revealed several years later as a member of the founding team of DSSD when EMC purchased the startup. He developed the DSSD software architecture with fellow Sun engineer Jeff Bonwick, and served as DSSD's vice president for software. Shapiro explained how DSSD built the industry's first NVM Express pooled storage system for multiple host computers in a 2016 interview with the Hot Aisle podcast. The DSSD product was used in the TACC 2015 "Wrangler" computer cluster and received HPCwire's Editor's Choice Award later that year. After EMC was acquired by Dell Technologies, the DSSD group was folded into the EMC storage product division in 2017. Shapiro was a co-author of the NVM Express over Fabrics storage protocol announced in 2014. By 2019, IDC analysts reported that NVMeoF was disrupting SAN purchasing by offering significant performance improvements for networked SSDs.
dbx is a source-level debugger found primarily on Solaris, AIX, IRIX, Tru64 UNIX, Linux and BSD operating systems. It provides symbolic debugging for programs written in C, C++, Fortran, Pascal and Java. Useful features include stepping through programs one source line or machine instruction at a time. In addition to simply viewing operation of the program, variables can be manipulated and a wide range of expressions can be evaluated and displayed.
The advanced debugger adb is a debugger that first appeared in Seventh Edition UNIX. It is found on Solaris, HP-UX, SCO and Venix. It is the successor of a debugger called db.
Before the 1921 destruction of Tulsa’s Greenwood District, Black residents had created a remarkable center of business and community life. The district included stores, professional offices, entertainment venues and homes owned by Black citizens. Understanding Greenwood means learning what was built—not only what was burned.
MORE →Shirley Chisholm, elected in 1968.