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Phar Lap (company)
Phar Lap Software, Inc., was a software company specializing in software development tools for DOS operating systems. The company was named after the champion New Zealand racehorse Phar Lap. They were most noted for their software allowing developers to access memory beyond the 640 KiB limit of DOS (DOS extenders) and were an author of the VCPI standard. Phar Lap Software, Inc. was founded in April 1986 by Richard M. Smith, Robert Moote, and John M. Benfatto. Their first major success, ''386, DOS-Extender'', a 32-bit protected mode development tool, was released in November 1986. Phar Lap’s product line was expanded to include ''386, VMM'', a virtual memory add-in driver, ''LinkLoc'', a linker-locator for embedded development; cross tools for embedded development; and ''286, DOS-Extender'', a DOS extender that emulated an OS/2 environment, complete with the OS/2 API and protected mode, in contrast with Microsoft's OS/2 API emulation, which ran OS/2 applications in real mode ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cambridge, Massachusetts
Cambridge ( ) is a city in Middlesex County, Massachusetts, United States. It is a suburb in the Greater Boston metropolitan area, located directly across the Charles River from Boston. The city's population as of the 2020 United States census, 2020 U.S. census was 118,403, making it the most populous city in the county, the List of municipalities in Massachusetts, fourth-largest in Massachusetts behind Boston, Worcester, Massachusetts, Worcester, and Springfield, Massachusetts, Springfield, and List of cities in New England by population, ninth-most populous in New England. The city was named in honor of the University of Cambridge in Cambridge, England, which was an important center of the Puritans, Puritan theology that was embraced by the town's founders. Harvard University, an Ivy League university founded in Cambridge in 1636, is the oldest institution of higher learning in the United States. The Massachusetts Institute of Technology (MIT), Lesley University, and Hult Inte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MASM
Microsoft Macro Assembler (MASM) is an x86 assembler that uses the Intel syntax for MS-DOS and Microsoft Windows. Beginning with MASM 8.0, there are two versions of the assembler: One for 16-bit & 32-bit assembly sources, and another (ML64) for 64-bit sources only. MASM is maintained by Microsoft, but since version 6.12 it has not been sold as a separate product. It is instead supplied with various Microsoft SDKs and C compilers. Recent versions of MASM are included with Microsoft Visual Studio. Notable applications compiled using MASM are RollerCoaster Tycoon which was 99% written in assembly language and built with MASM. History The earliest versions of MASM date back to 1981. The IBM PC Macro Assembler was released in December 1981. They were sold either as the generic "Microsoft Macro Assembler" for all x86 machines or as the OEM version specifically for IBM PCs. By Version 4.0, the IBM release was dropped. Up to Version 3.0, MASM was also bundled with a smaller companio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phar Lap ETS
Phar Lap (4 October 1926 – 5 April 1932) was a New Zealand-born champion Australian Thoroughbred racehorse. Achieving great success during his distinguished career, his initial underdog status gave people hope during the early years of the Great Depression. He won the Melbourne Cup, two Cox Plates, the Australian Derby, and 19 other weight-for-age races. He is universally revered as one of the greatest race horses of all time, not just in Australia but in the history of Thoroughbred horse racing. One of his greatest performances was winning the Agua Caliente Handicap in Mexico in track-record time in his final race. He won in a different country, after a bad start many lengths behind the leaders, with no training before the race, and he split his hoof during the race. After a sudden and mysterious illness, Phar Lap died in 1932 in Menlo Park, California. At the time, he was the third-highest stakes-winner in the world. His mounted hide is displayed at the Melbourne Museu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ardence
Ardence was a software company headquartered in Waltham, Massachusetts with representatives in Washington, D.C.; Virginia Beach, VA; Chicago, IL; Denton, TX; and in Europe, the Middle East, Africa and India. It developed a software-streaming product and an embedded OEM development platform. It was founded in 1980 as VenturCom. On December 20, 2006, Citrix Systems Inc. announced an agreement to acquire Ardence. In 2008, some former Ardence executives acquired the Ardence programs from Citrix and formed IntervalZero. History VenturCom was founded in 1980, by Marc H. Meyer, Doug Mook, Bill Spencer and Myron Zimmerman. The company changed its name to Ardence in 2004. On December 20, 2006, Citrix Systems Inc. announced an agreement to acquire Ardence. In 2008, a group of former Ardence executives founded IntervalZero and acquired the Ardence embedded software business from Citrix. Citrix retained a minority ownership the firm. Products The enterprise software-streaming product ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IntervalZero
IntervalZero, Inc. develops hard real-time software and its symmetric multiprocessing (SMP) enabled RTX (operating system), RTX and RTX64 software transform the Microsoft Windows general-purpose operating system (GPOS) into a real-time operating system (RTOS). IntervalZero and its engineering group regularly release new software (cf its history). Its most recent product, RTX64, focuses on 64-bit and symmetric multiprocessing (SMP) to replace dedicated hardware based systems such as digital signal processors (DSPs) or field-programmable gate arrays (FPGAs) with multicore PCs. For instance, an audio mixing surface manufacturer which largely deployed DSP based systems, switched to personal computer (PC) based systems, dedicating multi-core processors for the Real-time computing, real time audio processing. Founded in July 2008 by a group of former Ardence executives, IntervalZero is headed by CEO Jeffrey D. Hibbard. The firm has offices in Waltham, MA; Nice, France; Munich, Germany ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Personal Computer
A personal computer, commonly referred to as PC or computer, is a computer designed for individual use. It is typically used for tasks such as Word processor, word processing, web browser, internet browsing, email, multimedia playback, and PC game, gaming. Personal computers are intended to be operated directly by an end user, rather than by a computer expert or technician. Unlike large, costly minicomputers and mainframes, time-sharing by many people at the same time is not used with personal computers. The term home computer has also been used, primarily in the late 1970s and 1980s. The advent of personal computers and the concurrent Digital Revolution have significantly affected the lives of people. Institutional or corporate computer owners in the 1960s had to write their own programs to do any useful work with computers. While personal computer users may develop their applications, usually these systems run commercial software, free-of-charge software ("freeware"), which i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Windows API
The Windows API, informally WinAPI, is the foundational application programming interface (API) that allows a computer program to access the features of the Microsoft Windows operating system in which the program is running. Programs can access API functionality via shared-library technologies or via system-file access. Each major version of the Windows API has a distinct name that identifies a compatibility aspect of that version. For example, Win32 is the major version of Windows API that runs on 32-bit systems. The name, Windows API, collectively refers to all versions of this capability of Windows. Microsoft provides developer support via a software development kit, Microsoft Windows SDK, which includes documentation and tools for building software based on the Windows API. Services This section lists notable services provided by the Windows API. Base Services Base services include features such as the file system, devices, processes, threads, and error handl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Expanded Memory
In DOS memory management, expanded memory is a system of bank switching that provided additional memory to DOS programs beyond the limit of conventional memory (640 KiB). ''Expanded memory'' is an umbrella term for several incompatible technology variants. The most widely used variant was the Expanded Memory Specification (EMS), which was developed jointly by Lotus Software, Intel, and Microsoft, so that this specification was sometimes referred to as "LIM EMS". LIM EMS had three versions: 3.0, 3.2, and 4.0. The first widely implemented version was EMS 3.2, which supported up to 8 MiB of expanded memory and uses parts of the address space normally dedicated to communication with peripherals (upper memory) to map portions of the expanded memory. EEMS, an expanded-memory management standard competing with LIM EMS 3.x, was developed by AST Research, Quadram and Ashton-Tate ("AQA"); it could map any area of the lower 1 MiB. EEMS ultimately was incorporated in LIM EMS 4. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DOS Protected Mode Interface
In computing, the DOS Protected Mode Interface (DPMI) is a specification introduced in 1989 which allows a DOS program to run in protected mode, giving access to many features of the new PC processors of the time not available in real mode. It was initially developed by Microsoft for Windows 3.0, although Microsoft later turned control of the specification over to an industry committee with open membership. Almost all modern DOS extenders are based on DPMI and allow DOS programs to address all memory available in the PC and to run in protected mode (mostly in ring (computer security), ring 3, least privileged). Overview DPMI stands for DOS Protected Mode Interface. It is an API that allows a program to run in protected mode on 80286 series and later processors, and do the calls to real mode without having to set up these CPU modes manually. DPMI also provides the functions for managing various resources, notably Computer Memory, memory. This allows the DPMI-enabled programs to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DESQview
DESQview (DV) is a text mode multitasking operating environment developed by Quarterdeck Office Systems which enjoyed modest popularity in the late 1980s and early 1990s. Running on top of DOS, it allows users to run multiple programs concurrently in multiple windows. Desq Quarterdeck's predecessor to DESQview was a task switching product called Desq (shipped late April or May 1984), which allows users to switch between running programs. Quarterdeck revamped its package, bringing multitasking in, and adding TopView compatibility. DESQview was released in July 1985, four months before Microsoft released the first version of Windows. It was widely thought to be the first program to bring multitasking and windowing capabilities to DOS; in fact, there was a predecessor, IBM TopView, which shipped March 1985. Under DESQview, well-behaved DOS programs can be run concurrently in resizable, overlapping windows (something the first version of Windows cannot do). A simple hideable ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quarterdeck Office Systems
Quarterdeck Office Systems, later Quarterdeck Corporation (NASDAQ: QDEK), was an American computer software company. It was founded by Therese Myers and Gary Pope in 1981 and incorporated in 1982. Their offices were initially located at 150 Pico Boulevard in Santa Monica, California and later at 13160 Mindanao Way in Marina del Rey, California, as well as a sales and technical support unit located in Clearwater, Florida. In the 1990s, they had a European office in Dublin, Ireland. Their most famous products were the Quarterdeck Expanded Memory Manager, DESQview, CleanSweep, DESQview/X, Quarterdeck Mosaic, Manifest and Partition-It. On April 18, 1989, Quarterdeck was awarded a US software patent that allowed multiple windowed PC applications under MS-DOS. After sales and its stock plummeted in 1995, interim CEO King R. Lee hired Gaston Bastiaens as CEO. In order to diversify the company's product offerings, Bastiaens began an ultimately unsuccessful acquisition spree. In 1995 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virtual Control Program Interface
In computing, the Virtual Control Program Interface (VCPI) is a specification published in 1989 by Phar Lap Software that allows a DOS program to run in protected mode, granting access to many features of the processor not available in real mode. It was supplanted by DOS Protected Mode Interface (DPMI) shortly after being introduced, due in large part to VCPI's inability to work in Windows 3.0's protected mode. Overview Developed since 1987 in cooperation with Quarterdeck Office Systems and with support by A.I. Architects, Lotus Development Corp., Quadram, Qualitas and Rational Systems, VCPI is provided by an expanded memory manager in DOS (e.g. CEMM, QEMM, later EMM386) and does allow 80386 protected-mode DOS extenders to coexist with 80386 EMS expanded memory emulators. It was eclipsed by DPMI, most notably because it was not supported for DOS programs run in Windows 3.0's native protected mode (called ''386 enhanced mode'') and because VCPI runs programs in Ring 0, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
