Tandem


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Related to Tandem: Tandem Computers

tandem

[′tan·dəm]
(aerospace engineering)
The fore and aft configuration used in boosted missiles, long-range ballistic missiles, and satellite vehicles; stages are stacked together in series and are discarded at burnout of the propellant for each stage.
(electricity)
Two-terminal pair networks are in tandem when the output terminals of one network are directly connected to the input terminals of the other network.

Tandem

(Tandem Computers Inc., Cupertino, CA) A former major manufacturer of fault-tolerant computers founded in 1974 by James Treybig and provider of the early 21st century technology for HP's enterprise computing strategy. Tandem was the first company to address the transaction processing (OLTP) market for online reservations and financial transfers by providing computers designed from the ground up for fault-tolerant operation. These computers are used in all the major banks, stock exchanges, credit card companies and ATM machines in the world.

Tandem's most significant product was its MIPS-based Himalaya series which ran the NonStop Kernel operating system, compatible with Tandem's Guardian OS. This platform lives on in the NonStop S-series servers from HP, which acquired Tandem's technology via Compaq in 2002. Compaq purchased Tandem in 1997. See ServerNet.


James Treybig
Treybig founded Tandem and was at its helm for more than 20 years. (Image courtesy of Tandem Computers Incorporated.)






NonStop Processing
Tandem was the first company to build fault-tolerant systems for the OLTP market. At the top is Tandem's first NonStop system in 1976. At the bottom is the K10000, a massively parallel server that can scale up to 4,000 processors. (Images courtesy of Tandem Computers Incorporated.)


NonStop Processing
Tandem was the first company to build fault-tolerant systems for the OLTP market. At the top is Tandem's first NonStop system in 1976. At the bottom is the K10000, a massively parallel server that can scale up to 4,000 processors. (Images courtesy of Tandem Computers Incorporated.)
References in periodicals archive ?
And that's really what tandem surfing is all about - the mood, the feeling and the companionship.
Tandem will distribute the highly scalable Challenge line, including the Challenge XL(TM) enterprise server, the Challenge L(TM) departmental deskside server and the Challenge M(TM) network resource server as its Integrity Network Resource (NR) servers: the NR/4436, NR/4412 and NR/4001.
The final mixing function is normally a shorter process than the masterbatch stage and assuming a final mix time of, say, two minutes then the tandem machine may run idle typically for a minute or so following discharge and before receiving the next hot masterbatch.
We are excited to be working with Tandem Health Care and JER," said Arnold Whitman, Formation's Chief Executive Officer.
CONTROL-M for Tandem, an enterprise-wide job scheduling and
Because Tandem is interested in avoiding problems, not fixing them after they happen, they have configured Unicenter TNG to detect all events that exceed certain thresholds.
The challenge ahead for most Tandem users is to preserve and protect their investment in SNA applications while transitioning to routed IP networks," explained Hutchens.
Tandem provides the software that will elevate industry-standard Compaq ProLiant servers to a level of reliability, scalability, and manageability that meets the entry-level requirements of new and existing telecommunications customers.
today announced that it will offer its Wireless Location Services(tm) products on the newly introduced NonStop(R) Himalaya(R) S-series Intelligent Network Server (INS) by Tandem, a Compaq company.
The Stock Exchange of Hong Kong's trading systems are powered by four Tandem K20016 nodes, with additional K10000 and S70000 machines supporting Year 2000 and development activities, respectively.
Extending its leadership position in the global wireless intelligent network (IN) market, Tandem, a Compaq company, has been awarded a multimillion-dollar contract to deploy its home location register (HLR) and authentication center into Mexico-based Grupo IUSACELL's digital wireless network.