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Simtel
Simtel (sometimes called Simtelnet, originally SIMTEL20) was an important long-running archive of freeware and shareware for various operating systems. The Simtel archive had significant ties to the history of several operating systems: it was in turn a major repository for CP/M, MS-DOS, Microsoft Windows and FreeBSD. The archive was hosted initially on the MIT-MC PDP-10 running the Incompatible Timesharing System, then TOPS-20, then FreeBSD servers, with archive distributor Walnut Creek CDROM helping fund FreeBSD development. It began as an early mailing list, then was hosted on the ARPANET, and finally the fully open Internet. The service was shut down on March 15, 2013. History Simtel originated as SIMTEL20, a software archive started by Keith Petersen in 1979 while living in Royal Oak, Michigan. The original archive consisted of CP/M software for early 8080-based microcomputers. The software was hosted on a PDP-10 at MIT that also ran a CP/M mailing list to which Petersen su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Walnut Creek CDROM
Walnut Creek CDROM Inc. was an early provider of freeware, shareware, and free software on CD-ROMs. The company was founded in by Bob Bruce in Walnut Creek, California, in August 1991. It was one of the first commercial distributors of free software on CD-ROMs. The company produced hundreds of titles on CD-ROMs, and ran the busiest FTP site on the Internet, ftp.cdrom.com, for many years. History In the early years, some of the most popular products were Simtel shareware for MS-DOS, CICA Shareware for Microsoft Windows, and the Aminet archives for the Amiga. In January 1994, it published a collection of 350 texts from Project Gutenberg, one of the first published ebook collections. Walnut Creek developed a close relationship with the FreeBSD Unix-like open source operating system project from its inception in 1993. The company published FreeBSD on CD-ROM, distributed it by FTP, employed FreeBSD project founders Jordan Hubbard and David Greenman, ran FreeBSD on its servers, spons ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
White Sands Missile Range
White Sands Missile Range (WSMR) is a United States Army military testing area and firing range located in the US state of New Mexico. The range was originally established as the White Sands Proving Ground on 9July 1945. White Sands National Park is located within the range. Significant events *The first atomic bomb (code named Trinity) was test detonated at Trinity Site near the northern boundary of the range on 16 July 1945, seven days after the White Sands Proving Ground was established. *After the conclusion of World War II, 100 long-range German V-2 rockets that were captured by U.S. military troops were brought to WSMR. Of these, 67 were test-fired between 1946 and 1951 from the White Sands V-2 Launching Site. (This was followed by the testing of American rockets, which continues to this day, along with testing other technologies.) *NASA's Space Shuttle Columbia landed on the Northrop Strip at WSMR on 30 March 1982 as the conclusion to mission STS-3. This was the only t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CP/M
CP/M, originally standing for Control Program/Monitor and later Control Program for Microcomputers, is a mass-market operating system created in 1974 for Intel 8080/ 85-based microcomputers by Gary Kildall of Digital Research, Inc. Initially confined to single-tasking on 8-bit processors and no more than 64 kilobytes of memory, later versions of CP/M added multi-user variations and were migrated to 16-bit processors. The combination of CP/M and S-100 bus computers became an early standard in the microcomputer industry. This computer platform was widely used in business through the late 1970s and into the mid-1980s. CP/M increased the market size for both hardware and software by greatly reducing the amount of programming required to install an application on a new manufacturer's computer. An important driver of software innovation was the advent of (comparatively) low-cost microcomputers running CP/M, as independent programmers and hackers bought them and shared their ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digital River
Digital River is a private company that provides global e-commerce, payments and marketing services. In 2013, Digital River processed more than $30 billion in online transactions. Digital River is headquartered in Minnetonka, Minnesota. Company operations Digital River has a history of acquiring other companies in the e-commerce (including digital software delivery) industry. Notable acquisitions include: * Simtel *CCNow (2002) *Freemerchant.com (discontinued 15 January 2008) *Journey Education Marketing (2010) *eSellerate *THINK Subscription (2008) *SWREG (2005) *Fatfoogoo (2010) Divestitures *CCNow (sold to Snorrason Holdings 2012) *Journey Education Marketing (2013) Security failings A security breach in 2010 resulted in nearly 200,000 customers' data being stolen. A lawsuit followed by Digital River. In October 2017, the websites for Equifax, and for TransUnion's Central American division were reported to have been redirecting visitors to websites that attempte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
C10k Problem
The C10k problem is the problem of optimizing network sockets to handle a large number of clients at the same time. The name C10k is a numeronym for concurrently handling ten thousand connections. Handling many concurrent connections is a different problem to handling many requests per second: the latter requires high throughput (processing them quickly), while the former does not have to be fast, but requires efficient scheduling of connections. The problem of socket server optimisation has been studied because a number of factors must be considered to allow a web server to support many clients. This can involve a combination of operating system constraints and web server software limitations. According to the scope of services to be made available and the capabilities of the operating system as well as hardware considerations such as multi-processing capabilities, a multi-threading model or a single threading model can be preferred. Concurrently with this aspect, which involves ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freeware
Freeware is software, most often proprietary, that is distributed at no monetary cost to the end user. There is no agreed-upon set of rights, license, or EULA that defines ''freeware'' unambiguously; every publisher defines its own rules for the freeware it offers. For instance, modification, redistribution by third parties, and reverse engineering are permitted by some publishers but prohibited by others. Unlike with free and open-source software, which are also often distributed free of charge, the source code for freeware is typically not made available. Freeware may be intended to benefit its producer by, for example, encouraging sales of a more capable version, as in the freemium and shareware business models. History The term ''freeware'' was coined in 1982 by Andrew Fluegelman, who wanted to sell PC-Talk, the communications application he had created, outside of commercial distribution channels. Fluegelman distributed the program via a process now termed '' sharewa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
XO Communications
XO Communications, LLC (previously Nextlink Communications, Concentric Network Corporation and Allegiance Telecom, Inc.) was an American telecommunications company. Before being purchased by and later absorbed by Verizon Communications. XO provided managed and converged Internet Protocol (IP) network services for small and medium-sized enterprises. XO delivered services through a mix of fiber-based Ethernet and Ethernet over Copper (EoC). In addition, the company had external network-to-network interface (E-NNI) agreements with traditional carriers and cable companies. Acquisition by Verizon Communications In a news release dated February 22, 2016, Verizon Verizon Communications Inc., commonly known as Verizon, is an American multinational telecommunications conglomerate and a corporate component of the Dow Jones Industrial Average. The company is headquartered at 1095 Avenue of the Americas ... announced plans to acquire XO Communications' "fiber-optic network business. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles River Laboratories
Charles River Laboratories International, Inc., is an American pharmaceutical company specializing in a variety of preclinical and clinical laboratory, gene therapy and cell therapy services for the Pharmaceutical, Medical device and Biotechnology industries. It also supplies assorted biomedical products, outsourcing services, and animals for research and development in the pharmaceutical industry (for example, contract research organization services) and offer support in the fields of basic research, drug discovery, safety and efficacy, clinical support, and manufacturing. The company's broad portfolio allowed them to support the development of approximately 85% of FDA-approved drugs in 2018. Its customers include leading pharmaceutical, biotechnology, agrochemical, government, and academic organization around the globe. The company has over 90 facilities, operates in 20 countries, and employs approximately 18,400 people worldwide. Charles River Laboratories is often criticize ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oakland University
Oakland University is a public university, public research university in Auburn Hills, Michigan, Auburn Hills and Rochester Hills, Michigan. Founded in 1957 through a donation of Matilda Dodge Wilson, it was initially known as Michigan State University-Oakland, operating under the Michigan State University, Michigan State University Board of Trustees. The university gained institutional independence from the board in 1970 and was renamed Oakland University. Oakland University is List of colleges and universities in Michigan, one of the eight research universities in the State of Michigan and is Carnegie Classification of Institutions of Higher Education, classified among "R2: Doctoral Universities – High research activity." The university offers 132 bachelor's degree programs and 138 professional graduate certificate, master's degree, and doctoral degree programs, including those offered by the Oakland University William Beaumont School of Medicine. It had a total enrollment ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
File Transfer Protocol
The File Transfer Protocol (FTP) is a standard communication protocol used for the transfer of computer files from a server to a client on a computer network. FTP is built on a client–server model architecture using separate control and data connections between the client and the server. FTP users may authenticate themselves with a clear-text sign-in protocol, normally in the form of a username and password, but can connect anonymously if the server is configured to allow it. For secure transmission that protects the username and password, and encrypts the content, FTP is often secured with SSL/TLS (FTPS) or replaced with SSH File Transfer Protocol (SFTP). The first FTP client applications were command-line programs developed before operating systems had graphical user interfaces, and are still shipped with most Windows, Unix, and Linux operating systems. Many dedicated FTP clients and automation utilities have since been developed for desktops, servers, mobile device ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
C (programming Language)
C (''pronounced like the letter c'') is a General-purpose language, general-purpose computer programming language. It was created in the 1970s by Dennis Ritchie, and remains very widely used and influential. By design, C's features cleanly reflect the capabilities of the targeted CPUs. It has found lasting use in operating systems, device drivers, protocol stacks, though decreasingly for application software. C is commonly used on computer architectures that range from the largest supercomputers to the smallest microcontrollers and embedded systems. A successor to the programming language B (programming language), B, C was originally developed at Bell Labs by Ritchie between 1972 and 1973 to construct utilities running on Unix. It was applied to re-implementing the kernel of the Unix operating system. During the 1980s, C gradually gained popularity. It has become one of the measuring programming language popularity, most widely used programming languages, with C compilers avail ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unix
Unix (; trademarked as UNIX) is a family of multitasking, multiuser computer operating systems that derive from the original AT&T Unix, whose development started in 1969 at the Bell Labs research center by Ken Thompson, Dennis Ritchie, and others. Initially intended for use inside the Bell System, AT&T licensed Unix to outside parties in the late 1970s, leading to a variety of both academic and commercial Unix variants from vendors including University of California, Berkeley ( BSD), Microsoft ( Xenix), Sun Microsystems ( SunOS/ Solaris), HP/ HPE ( HP-UX), and IBM ( AIX). In the early 1990s, AT&T sold its rights in Unix to Novell, which then sold the UNIX trademark to The Open Group, an industry consortium founded in 1996. The Open Group allows the use of the mark for certified operating systems that comply with the Single UNIX Specification (SUS). Unix systems are characterized by a modular design that is sometimes called the " Unix philosophy". According to thi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
