HPE NonStop (formerly Tandem) has evolved through distinct architectural eras, each introducing specific programming languages and environments to maintain its legendary fault tolerance.
1. The Tandem Stack Machine Era (1974–1990)
This era focused on the proprietary 16-bit stack-based architecture (TNS), where software was designed to “fail-fast” and operate in process pairs.
Nov 1974: Tandem Computers founded by Jimmy Treybig.
May 1976:TAL (Transaction Application Language) launched with the first Tandem/16 (NonStop I) system. It was the only language available at launch, derived from HP 3000’s SPL.
Late 1970s:COBOL74, FORTRAN, and MUMPS were added to support business and scientific applications.
1981:NonStop II introduced support for 32-bit addressing, enabling larger application memory.
1983:SCOBOL (Screen COBOL) emerged alongside the Pathway transaction manager to handle terminal-based user interfaces and fault-tolerant logic.
1986:NonStop SQL released as the first fault-tolerant relational database language.
1987:C was introduced to the platform.
1989:Integrity S2 line launched using MIPS processors, introducing a variant of Unix called NonStop UX.
2. The MIPS RISC / Himalaya Era (1991–2004)
As Tandem migrated to MIPS processors (TNS/R), it introduced a Unix-like personality to attract modern developers while maintaining its legacy Guardian environment.
1991:Cyclone/R launched. Most software still ran in TNS stack mode using an “Accelerator” tool to translate code to MIPS instructions.
1993:Himalaya K-Series released with native-mode compilers for C and COBOL to leverage MIPS performance.
1994/1995:Open System Services (OSS) introduced a POSIX-compliant environment, enabling C++ and standard Unix utilities.
1995:Java was first supported on the platform.
1997: Compaq acquired Tandem; ServerNet became the standard interconnect.
Late 1990s: Support for scripting languages like Perl, Python, and PHP began appearing in the OSS environment.
3. The HP Integrity Itanium Era (2005–2013)
Following the HP merger, the architecture moved to Intel Itanium (TNS/E), branded as HP Integrity NonStop.
2005:NonStop i introduced. Compilers for C, C++, and Java were updated for the Itanium architecture.
2000s:pTAL (Portable TAL) became the standard for system-level programming to bridge legacy TAL code to modern RISC/Itanium architectures.
2011: Enhanced support for modern web languages and frameworks within the OSS environment.
4. The Modern x86 / NonStop X Era (2014–Present)
HPE migrated the entire stack to standard Intel x86-64 processors (TNS/X) while retaining binary compatibility for legacy applications.
2014:NonStop X launched. All languages (COBOL, C, C++, Java) were migrated to target x86-64.
2015: Transition to Hewlett Packard Enterprise (HPE) branding.
Recent Years: Integration of modern open-source dev-ops tools and languages, including JavaScript (Node.js), Python 3, Go, and Samba via the HPE NonStop OSS environment.
HPE NonStop (formerly Tandem) programming has evolved from proprietary languages designed for fault-tolerant, transaction-oriented processing (TAL, COBOL85) to supporting open-source languages (Java, C++, Python, PHP) on modern x86-64 hardware. The ecosystem spans from the initial Guardian OS to modern J-series and L-series OS, supporting TNS, TNS/R, TNS/E, and TNS/X architectures.
Key Programming Languages & OS Timeline
1970s–1980s (Tandem Guardian): Core development centered on TAL (Transaction Application Language) (system programming), COBOL85 (business logic), and TACL (Tandem Advanced Command Language) (command shell scripting).
1990s (Guardian 90 / NonStop UX): Introduction of C and C++ for more flexible application development, alongside Pascal and FORTRAN.
2000s (H-Series / J-Series – Itanium): Shift towards Java and enhanced support for C/C++ in the Pathway server environment.
2010s–Present (J-Series / L-Series – x86-64): Modern NonStop systems, particularly on x86-64, expanded to include scripting languages like Perl, PHP, and Python within the Open System Services (OSS) environment.
pTAL (Portable TAL): Introduced to bridge native TAL to newer, more portable processor architectures.
Operating System & Architecture Evolution
Guardian (TNS): The foundational OS, relying on Tandem’s native stack, with TAL as the primary low-level language.
OSS (Open System Services): Introduced to bring POSIX-compliant, Unix-like functionality to NonStop, enabling easier porting of C/C++ and open-source applications.
Modern OS (J-series/L-series): Supports both Guardian (native) and OSS environments, allowing for a hybrid approach where traditional transaction processing (COBOL/TAL) mixes with modern web services (Java/Python).
Sherilyn Fenn (born Sheryl Ann Fenn; February 1, 1965) is an American actress who rose to fame in the early 1990s.
Sherilyn Fenn in Twin Peaks
Early Life and Family
Background: Born in Detroit to a musical family (including mother Arlene Quatro and aunt Suzi Quatro), she moved to Los Angeles at 17 to study acting at the Lee Strasberg Theatre Institute.
Career Highlights
Breakthrough: Achieved stardom as Audrey Horne in Twin Peaks (1990–1991, 2017), earning Emmy and Golden Globe nominations.
Film & TV: Notable roles include Wild at Heart (1990), Of Mice and Men (1992), and Boxing Helena (1993). She also starred in Rude Awakening (1998–2001) and Liz: The Elizabeth Taylor Story (1995).
Personal Life
Details: Had a well-known relationship with Johnny Depp in the 1980s.
Family & Work: She has two sons and authored a children’s book, No Man’s Land (2016), inspired by her younger son’s autism.
Sherilyn Fenn’s career spans over four decades, defined by her transition from 1980s cult teen films to her 1990s rise to fame as a Hollywood icon, followed by a prolific period as a versatile character actress in television and independent film.
Sherilyn Fenn in Ruby
Early Career and Teen Roles (1984–1989)
Fenn began her career in various B-movies and teen dramas, often playing sultry or rebellious characters.
The Wild Life (1984): Played Penny Harlin in this early film role.
Facebook: There is a page titled Sherilyn Fenn Now that shares updates related to her podcast appearances and projects.
by era, annotated:
Sherilyn Fenn (born Sheryl Ann Fenn on February 1, 1965) is an American actress and author best known for her iconic portrayal of Audrey Horne in the cult television series Twin Peaks.
Biography Overview
Born in Detroit, Michigan, Fenn grew up in a musical family; her mother, Arlene Quatro, was a keyboardist, and her aunt is rock icon Suzi Quatro. Her father, Leo Fenn, managed notable bands, including Alice Cooper. After moving to Los Angeles at 17, she dropped out of high school to study acting at the Lee Strasberg Theatre Institute.
Audrey Horne in Twin Peaks played by Sherilyn Fenn
Annotated Career Timeline
Early Career & Cult Foundations (1984–1989)
1984: Film debut in the comedy The Wild Life.
1985: Appeared in the cult comedy Just One of the Guys and starred alongside then-boyfriend Johnny Depp in the short film Dummies.
1986: Solidified her presence in the “brat pack” era with roles in the skater film Thrashin’ and the supernatural action movie The Wraith.
1988: Landed her first lead in Zalman King’s erotic drama Two Moon Junction. Fenn later expressed embarrassment over the film’s “sexploitation” leanings, which led her to take a brief hiatus from acting.
Breakthrough & Peak Stardom (1990–1995)
1990–1991: Cast as Audrey Horne in Twin Peaks. Her performance, characterized by 1950s-style fashion and the famous “cherry stem” scene, earned her Emmy and Golden Globe nominations.
1990: Appeared in David Lynch’s Wild at Heart as a car accident victim. Lynch famously described her as “five feet of heaven in a ponytail”.
1992: Starred in the critically acclaimed adaptation of Of Mice and Men opposite John Malkovich and Gary Sinise. She also played a composite of Marilyn Monroe and Candy Barr in the film Ruby.
1993: Starred in the controversial Boxing Helena, directed by Jennifer Lynch. Though a commercial failure, Fenn remained proud of the film’s artistic risks.
1995: Portrayed Elizabeth Taylor in the NBC miniseries Liz: The Elizabeth Taylor Story. She fought for script integrity to ensure a respectful portrayal of the legend.
Independent Era & Television Lead (1996–2001)
1997: Guest-starred on Friends as Ginger, a character with a prosthetic leg.
1998–2001: Headlined the Showtime sitcom Rude Awakening as Billie Frank, a recovering alcoholic former soap star.
Diverse Roles & Return to Twin Peaks (2002–Present)
The Burden of “Too Pretty”: Fenn has openly discussed how her striking features led directors to typecast her as a passive, idealized object of desire. She has actively advocated for rewriting roles to make her characters stronger, proactive, and more intellectually complex.
The Elizabeth Taylor Connection: Playing the legendary actress in a 1995 biopic resonated deeply with Fenn. She connected with Taylor’s struggle against the stereotypes placed on beautiful women and the double-edged sword of using beauty as a career calling card.
Embracing Aging Authentically: Now in her 60s, Fenn receives widespread praise for gracefully embracing her age, often showing off her striking, natural silver hair and powerful, glamorous features.
Fenn’s career is defined by her resistance to typecasting. Following the massive success of Twin Peaks, she intentionally chose complex, sometimes unglamorous roles in independent films like Darkness Falls (1998) and Cement (1999) to distance herself from being a mere “sex symbol”. She has remained an outspoken critic of the Hollywood “machine” and is also an author; in 2016, she published the children’s book No Man’s Land, inspired by her son’s autism.
Audrey Horne in Twin Peaks played by Sherilyn Fenn
The Coma (March 1989): Audrey survives the explosion but falls into a coma for three and a half weeks. During this time, Cooper’s doppelgänger (Mr. C) visits her in the hospital, where he rapes and impregnates her.
Motherhood: In late 1989, Audrey gives birth to her son, Richard Horne. She raises him as a single mother and eventually opens a successful beauty salon in Twin Peaks.
Marriage: Roughly ten years after Richard’s birth, Audrey enters a “marriage of convenience” with her accountant, Charlie.
Personal Life
Sherilyn Fenn‘s personal life has been defined by her upbringing in a famous musical family and her high-profile relationships during the peak of her Twin Peaks fame. Born on 1 February 1965 in Detroit, Michigan, she moved to Los Angeles at age 17, where she began her journey from a theater student to an international sex symbol and devoted mother.
Early Life & Family Roots (1965–1983)
1965: Born Sheryl Ann Fenn in Detroit.
Musical Heritage: Raised in a family of performers. Her mother, Arlene Quatro, was a keyboardist; her aunt is rock star Suzi Quatro; and her father, Leo Fenn, managed bands like Alice Cooper.
1982: Moved to Los Angeles at age 17. She dropped out of Beverly Hills High School to enroll at the Lee Strasberg Theatre Institute to study acting.
The Rising Star & Johnny Depp Era (1984–1989)
1985: Met actor Johnny Depp on the set of the short film Dummies. The two dated for three and a half years and were briefly engaged.
Late 1980s: Her relationship with Depp ended as their careers pulled them in different directions (Los Angeles for Fenn, Vancouver for Depp’s 21 Jump Street).
Twin Peaks Fame & First Marriage (1990–1999)
1990: Dated singer Billy Idol briefly; the pair appeared together on the cover of In Fashion magazine.
1993: Welcomed her first son, Myles, with guitarist/songwriter Toulouse Holliday, whom she met on the set of Three of Hearts.
1997: Divorced Holliday after three years of marriage.
Motherhood & Later Years (2000–Present)
2007: Gave birth to her second son, Christian, with then-boyfriend Dylan Stewart.
2014: Began practicing Transcendental Meditation, a practice often associated with her long-time collaborator David Lynch.
Present: Continues to act and engage with fans, famously returning to her iconic role as Audrey Horne for Twin Peaks: The Return in 2017.
Sherilyn Fenn as Audrey Horne
Audrey Horne‘s timeline spans her high school years during the original investigation of Laura Palmer’s murder to her mysterious, fractured reality 25 years later in The Return.
Twin Peaks, Sherilyn Fenn as Audrey Horne
Original Series (February – March 1989)
February 1989: Audrey begins her own investigation into Laura Palmer’s death to impress Special Agent Dale Cooper. She goes undercover at One Eyed Jacks, where she narrowly avoids a horrific encounter with her father, Ben Horne.
March 1989: After being rescued from One Eyed Jacks by Cooper, Audrey briefly finds romance with John Justice Wheeler. However, she remains politically active and chains herself to the vault door at the Twin Peaks Savings and Loan to protest the Ghostwood Development project.
The Explosion: On March 28, 1989, a bomb goes off in the bank vault, leaving Audrey’s fate uncertain as the original series ends.
The Interim Years (1989 – 2014)
The Return (2014 – 2016)
Disappearance: About four years before the events of The Return, Audrey suddenly closes her salon and vanishes from public life. Rumours suggest she entered a private care facility or became an agoraphobic recluse.
Fractured Reality: Audrey appears in several surreal scenes with Charlie, obsessing over a missing man named Billy. She eventually goes to the Roadhouse to perform “Audrey’s Dance,” but after a fight breaks out, she “wakes up” in a stark white room, staring into a mirror.
Current Status: Her final scene suggests she may be confined to a psychiatric hospital, with the Roadhouse scenes being a mental construct or “dream”.
Audrey Horne, the iconic, confident, and mischievous character from Twin Peaks played by Sherilyn Fenn, is known for her flirtatious demeanor and sharp wit. Famous quotes include “I’m Audrey Horne and I get what I want,” “Do your palms ever itch?”, and her obsession with Agent Cooper, “You’re my special agent”.
Key Quotes from Audrey Horne:
“I’m Audrey Horne and I get what I want”.
“You know, sometimes I get so flushed, it’s interesting. Do your palms ever itch?”.
“Do you like my ring?”.
“When something you care about is in danger you must fight to save it, or lose it forever”.
“I’ve been doing some research, in real life there is no algebra”.
“Oh, Daddy, I’m so afraid”.
“Talk, Emory! I want to know everything. About you, Laura, Ronnette, One-Eyed Jacks”.
“I don’t think anyone understands me”.
“You are in the Doghouse Mister… let me fix you a sandwich”.
Memorable Moments and Exchanges:
On her family: “Not exactly. Laura tutored my brother Johnny three times a week. Johnny’s 27 and he’s in the third grade. He’s got emotional problems. Runs in the family”.
On her determination: “I’m going to let you in on a little secret: Every day, once a day, give yourself a present. Don’t plan it, don’t wait for it, just let it happen”. (Note: This is often attributed to Cooper, but encapsulates her philosophy).
On her investigation: “Did Laura know that my father owned it? [One-Eyed Jacks]”.
Sherilyn Fenn’s beauty commentary centers on her iconic, retro-glamour aesthetic and her pushback against Hollywood typecasting. Celebrated for her mesmerizing looks in the 1990s—notably as Audrey Horne in Twin Peaks—her personal reflections on beauty and identity cover several key themes:
The Burden of “Too Pretty”: Fenn has openly discussed how her striking features led directors to typecast her as a passive, idealized object of desire. She has actively advocated for rewriting roles to make her characters stronger, proactive, and more intellectually complex.
The Elizabeth Taylor Connection: Playing the legendary actress in a 1995 biopic resonated deeply with Fenn. She connected with Taylor’s struggle against the stereotypes placed on beautiful women and the double-edged sword of using beauty as a career calling card.
Embracing Aging Authentically: Now in her 60s, Fenn receives widespread praise for gracefully embracing her age, often showing off her striking, natural silver hair and powerful, glamorous features.
Her timeless aesthetic, defined by strong brows, deep retro hues, and winged liner, has spawned countless beauty tutorials and inspired a dedicated fanbase. Fans and pop culture critics frequently discuss her peak 90s aesthetic as a high-water mark of on-screen magnetism. You can read community discussions on her legacy via the r/Twin Peaks Subreddit.
Tectonic Setting: It lies approximately 160 km (100 miles) east of the East African Rift System.
Location of Mount Kilimanjaro
Climbing Mount Kilimanjaro is a journey through five distinct climate zones, and your experience depends heavily on matching your timeline with the mountain’s seasonal rhythms. About 50,000 visitors attempt the summit annually.
Seasonal Visitor & Weather Timeline
The mountain follows a predictable cycle of dry and rainy seasons.
Long Dry Season (June – October): This is the peak visitor period due to the most stable weather and clear skies. July and August are particularly busy, coinciding with Northern Hemisphere holidays.
Short Dry Season (January – March): A popular window with high footfall but slightly quieter than the June–October peak. January and February are often cited as the best months for clear views and warm daytime temperatures.
Shoulder Seasons (March, June, October, November): These transition months offer a balance of moderate crowds and manageable weather. November brings the “short rains,” but trails are significantly emptier.
Rainy Seasons (April – May): The lowest visitor numbers occur during the “long rains”. Trails can be muddy and treacherous, making this suitable only for experienced trekkers seeking absolute solitude.
Mount Kilimanjaro
Geological and Ancient History
Kilimanjaro was formed by volcanic activity along the East African Rift.
2.5 Million Years Ago: Volcanic activity begins at the Shira centre.
1 Million Years Ago: Eruptions begin at the Mawenzi and Kibo cones.
360,000 Years Ago: The last major eruption occurred.
150,000–200,000 Years Ago: Final volcanic activity at Kibo created the current summit crater.
1000 BC: Evidence of human cultures on the slopes found via stone tools.
150 AD: Ptolemy of Alexandria makes early references to “lands” near the mountain.
Exploration and Climbing Milestones
The late 19th century marked the beginning of recorded ascents and scientific study.
1889:Hans Meyer and Ludwig Purtscheller become the first recorded people to reach the summit (Uhuru Peak) on 6 October.
1909: Gertrude Benham of London reaches the summit alone.
1926: Pastor Richard Reusch discovers a dead leopard on the crater rim, a finding later immortalised in literature.
1957: The volcano is officially declared dormant.
1961: Tanganyika gains independence; a torch is placed on the summit, and the peak is renamed Uhuru (“Freedom”).
2020s: Tourism reaches over 35,000–50,000 climbers per year, with various routes established for different skill levels.
Kilimanjaro Height
Typical Modern Trekking Timelines
Climbs generally take 5 to 9 days depending on the route chosen to ensure proper acclimatisation.
Route Typical Duration Characteristics
Marangu 5–6 Days The “Coca-Cola” route; sleep in huts.
Machame 6–7 Days Most popular; scenic “Whiskey” route.
Lemosho 7–8 Days High success rate; beautiful scenery.
Northern Circuit 9 Days Longest route; highest summit success rate.
Respective heights for Big 7
Standard Daily Expedition Routine
A typical day on the mountain follows a strict rhythm to manage fatigue and altitude:
06:00 – 07:00: Wake up and breakfast at camp.
08:00: Begin the day’s trek (typically 4–7 hours of walking).
13:00: Hot lunch followed by further trekking or rest.
17:00: Reach next camp; “hike high, sleep low” acclimatisation walks.
23:00 – 00:00 (Summit Night): Final ascent begins in the dark to reach the peak by sunrise.
Kilimanjaro RoutesMount Kilimanjaro location on World Map
The evolution of C++ on HPE NonStop systems traces the platform’s transition from proprietary Tandem architectures to modern x86-64 standards.
HPE NonStop C++ Evolution Timeline
Early 1990s: Introduction of Native C/C++ (TNS/R) With the move to MIPS-based TNS/R architecture, Tandem introduced native C and C++ compilers. These supported the Guardian and the then-new Open System Services (OSS) personalities.
2005: Itanium Transition (TNS/E) As the platform migrated to Intel Itanium processors (J-Series), the C++ compiler was updated to support the TNS/E (Tandem Native Stack / EPOC) architecture. This era introduced more robust Standard C++ Library support, though it required specific header management (e.g., CPATHEQ pragmas).
2015: x86 Migration (TNS/X) The launch of NonStop X (L-Series) on Intel x86-64 marked a major shift. The compiler suite was re-engineered to leverage the x86-64 Instruction Set Architecture, providing significantly higher performance for C++ applications.
2017: 64-Bit Addressing Support HPE introduced comprehensive 64-bit support for OSS processes (LP64 data model). This allowed C++ applications to access massive memory heaps beyond the previous 32-bit (ILP32) limits.
2020–2022: Modern C++ Standards (C++11/14/17) HPE updated its toolchains to support modern language standards. The NonStop Development Environment for Eclipse (NSDEE) 13.x versions specifically introduced a dedicated UI for setting the C++17 Language Standard.
2024: Kernel-Level Threading (KLT) The release of the L25.09 RVU brought Kernel-Level Threading to native C++ applications. This allowed C++ threads to execute concurrently across different IPUs, moving beyond the older POSIX User Threads (PUT) model.
2025: Cloud-Native Development HPE now offers the HPE NonStop Development Environment (NSDevEnv) in the public cloud, allowing developers to build fault-tolerant C++ applications using a cross-compiler model without on-premise hardware.