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Cups
CUPS (formerly an acronym for Common UNIX Printing System) is a modular computer printer, printing system for Unix-like computer operating systems which allows a computer to act as a print server. A computer running CUPS is a Server (computing), host that can accept print jobs from client (computing), client computers, process them, and send them to the appropriate printer. CUPS consists of a print spooler and scheduler, a filter system that converts the print data to a format that the printer will understand, and a backend system that sends this data to the print device. CUPS uses the Internet Printing Protocol (IPP) as the basis for managing print jobs and queue (printing), queues. It also provides the traditional command line interfaces for the System V printing system, System V and Berkeley printing system, Berkeley print systems, and provides support for the Berkeley print system's Line Printer Daemon protocol and limited support for the Server Message Block (SMB) protoc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PostScript Printer Description
PostScript Printer Description (PPD) files are created by vendors to describe the entire set of features and capabilities available for their PostScript printers. A PPD also contains the PostScript code (commands) used to invoke features for the print job. As such, PPDs function as drivers for all PostScript printers, by providing a unified interface for the printer's capabilities and features. For example, a generic PPD file for all models of HP Color LaserJet contains: *% = *% Basic Device Capabilities *% = *LanguageLevel: "2" *ColorDevice: True *DefaultColorSpace: CMYK *TTRasterizer: Type42 *FileSystem: False *Throughput: "10" which specifies that the printer understands PostScript Level 2, is a color device, and so forth. The PPD can describe allowable paper sizes, memory configurations, the minimum font set for the printer, and even specify a tree-based user interface for printer-specific configuration. A PPD is also often called ''PostScript Page Description'' instead of '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Easy Software Products
Easy Software Products was the vendor who originally invented the Common Unix Printing System (CUPS) and HTMLDOC software. It was founded near Washington, D.C. in 1993Michael R. Sweet, "CUPS: Common UNIX Printing System"The Evolution of CUPS. ''SAMS Publishing''. and was located in Morgan Hill, California. ESP sold CUPS to Apple Inc. Apple Inc. is an American multinational technology company headquartered in Cupertino, California, United States. Apple is the largest technology company by revenue (totaling in 2021) and, as of June 2022, is the world's biggest company b ... in 2007, but still developed and sold its HTMLDOC software until its closure. References External links HTMLDOCCUPS Software companies based in Washington, D.C. Software companies established in 1993 Software companies of the United States {{US-software-company-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michael Sweet (programmer)
Michael R. Sweet is a computer scientist known for being the original developer of CUPS. He also developed flPhoto, was the original developer of the Gimp-Print software (now known as Gutenprint), and continues to develop codedoc, HTMLDOC, Mini-XML, PAPPL, and many other projects. Sweet has contributed to other free software projects such as FLTK, Newsd, and Samba. He co-owned and ran Easy Software Products (ESP), a small company that specialized in Internet and printing technologies and is now the Chief Technology Officer of Lakeside Robotics Corporation. Career Sweet graduated in Computer Science at the SUNY Institute of Technology in Utica-Rome. He then spent several years working for TASC and Dyncorp on real-time computer graphics. After releasing a freeware tool "topcl", in 1993 Sweet set up Easy Software Products (ESP) and developed the ESP Print software. He started work on the CUPS software in 1997 and in 1999 released it under the GNU GPL license along with the com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Internet Printing Protocol
The Internet Printing Protocol (IPP) is a specialized Internet protocol for communication between client devices (computers, mobile phones, tablets, etc.) and printers (or print servers). It allows clients to submit one or more print jobs to the printer or print server, and perform tasks such as querying the status of a printer, obtaining the status of print jobs, or cancelling individual print jobs. Like all IP-based protocols, IPP can run locally or over the Internet. Unlike other printing protocols, IPP also supports access control, authentication, and encryption, making it a much more capable and secure printing mechanism than older ones. IPP is the basis of several printer logo certification programs including AirPrint, IPP Everywhere, and Mopria Alliance, and is supported by over 98% of printers sold today. History IPP began as a proposal by Novell for the creation of an Internet printing protocol project in 1996. The result was a draft written by Novell and Xerox called ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
OpenPrinting
The Linux Foundation (LF) is a Nonprofit organization, non-profit technology consortium founded in 2000 as a merger between Open Source Development Labs and the Free Standards Group to standardize Linux, support its growth, and promote its commercial adoption. Additionally, it hosts and promotes the collaborative development of Open-source software, open source software projects. It is a major force in promoting diversity and inclusion in both Linux and the wider open source software community. The foundation was launched in 2000, under the Open Source Development Labs (OSDL) and became the organization it is today when OSDL merged with the Free Standards Group (FSG). The Linux Foundation sponsors the work of Linux creator Linus Torvalds and lead maintainer Greg Kroah-Hartman. Furthermore, it is supported by members, such as AT&T, Cisco, Fujitsu, Google, Hitachi, Huawei, IBM, Intel, Meta Platforms, Meta, Microsoft, NEC, Oracle Corporation, Oracle, Orange S.A., Qualcomm, Samsung ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ArcaOS
ArcaOS is an operating system based on OS/2, developed and marketed by Arca Noae, LLC under license from IBM. It was codenamed Blue Lion during its development. It builds on OS/2 Warp 4.52 by adding support for new hardware, fixing defects and limitations in the operating system, and by including new applications and tools. It is targeted at professional users who need to run their OS/2 applications on new hardware, as well as personal users of OS/2. Like OS/2 Warp, ArcaOS is a 32-bit single user, multiprocessing, preemptive multitasking operating system for the x86 architecture. It is supported on both physical hardware and virtual machine hypervisors. Features Hardware compatibility ArcaOS supports symmetric multiprocessing systems with up to 64 processor cores, although it is recommended to disable hyperthreading. As of version 5.0.6, ArcaOS is ACPI 6.1-compliant and includes the 20200717 release of ACPICA. While ArcaOS is a 32-bit operating system, it has limited PA ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Command Line Interface
A command-line interpreter or command-line processor uses a command-line interface (CLI) to receive commands from a user in the form of lines of text. This provides a means of setting parameters for the environment, invoking executables and providing information to them as to what actions they are to perform. In some cases the invocation is conditional based on conditions established by the user or previous executables. Such access was first provided by computer terminals starting in the mid-1960s. This provided an interactive environment not available with punched cards or other input methods. Today, many users rely upon graphical user interfaces and menu-driven interactions. However, some programming and maintenance tasks may not have a graphical user interface and use a command line. Alternatives to the command-line interface include text-based user interface menus (for example, IBM AIX SMIT), keyboard shortcuts, and various desktop metaphors centered on the pointer (usual ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Press Release
A press release is an official statement delivered to members of the news media for the purpose of providing information, creating an official statement, or making an announcement directed for public release. Press releases are also considered a primary source, meaning they are original informants for information. A press release is traditionally composed of nine structural elements, including a headline, dateline, introduction, body, and other components. Press releases are typically delivered to news media electronically, ready to use, and often subject to "do not use before" time, known as a news embargo. A special example of a press release is a communiqué (), which is a brief report or statement released by a public agency. A communiqué is typically issued after a high-level meeting of international leaders. Using press release material can benefit media corporations because they help decrease costs and improve the amount of material a media firm can output in a cer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mac OS X
macOS (; previously OS X and originally Mac OS X) is a Unix operating system developed and marketed by Apple Inc. since 2001. It is the primary operating system for Apple's Mac (computer), Mac computers. Within the market of desktop and laptop computers it is the Usage share of operating systems#Desktop and laptop computers, second most widely used desktop OS, after Microsoft Windows and ahead of ChromeOS. macOS succeeded the classic Mac OS, a Mac operating system with nine releases from 1984 to 1999. During this time, Apple cofounder Steve Jobs had left Apple and started another company, NeXT Computer, NeXT, developing the NeXTSTEP platform that would later be acquired by Apple to form the basis of macOS. The first desktop version, Mac OS X 10.0, was released in March 2001, with its first update, 10.1, arriving later that year. All releases from Mac OS X Leopard, Mac OS X 10.5 Leopard and after are UNIX 03 certified, with an exception for OS X Lion, OS X 10. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Linux Distribution
A Linux distribution (often abbreviated as distro) is an operating system made from a software collection that includes the Linux kernel and, often, a package management system. Linux users usually obtain their operating system by downloading one of the Linux distributions, which are available for a wide variety of systems ranging from embedded devices (for example, OpenWrt) and personal computers (for example, Linux Mint) to powerful supercomputers (for example, Rocks Cluster Distribution). A typical Linux distribution comprises a Linux kernel, GNU tools and libraries, additional software, documentation, a window system (the most common being the X Window System, or, more recently, Wayland), a window manager, and a desktop environment. Most of the included software is free and open-source software made available both as compiled binaries and in source code form, allowing modifications to the original software. Usually, Linux distributions optionally include some proprietary so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Free Software
Free software or libre software is computer software distributed under terms that allow users to run the software for any purpose as well as to study, change, and distribute it and any adapted versions. Free software is a matter of liberty, not price; all users are legally free to do what they want with their copies of a free software (including profiting from them) regardless of how much is paid to obtain the program.Selling Free Software (gnu.org) Computer programs are deemed "free" if they give end-users (not just the developer) ultimate control over the software and, subsequently, over their devices. The right to study and modify a computer program entails that |
