PC-File was a flat file database computer application most often run under MS-DOS. It was one of the first of three widely popular software products sold via the marketing method that became known as shareware. [1] It was originally written by Jim "Button" Knopf in late 1982, and he formed the company Buttonware to develop, market, and support it.
The program was usually distributed for the cost of diskettes by local user groups. There was no copy protection and a manual was distributed as a file on the same diskettes as the program. It was extremely simple to use and extremely stable. It ran on just about any PC, while competing commercial products costing hundreds of dollars were often picky and full of bugs.
Knopf originally wrote the software for his own use to manage a church mailing list, on an Apple II. Later, he ported it to CP/M, and then to MS-DOS. Other people heard about it, and started requesting copies. Eventually, the cost of sending out update disks inspired Knopf to include a note requesting a small cash donation to offset the expenses. The response was overwhelming, and when his income from PC-File exceeded "ten times" what he was making from his job at IBM, he decided to turn Buttonware into a full-time business.
After PC-File version 3.0, Buttonware released PC-File/R, which had limited "relational" capabilities. In 1987, PC-File+ was rewritten to use the popular dBASE III file format.
PC-File for Microsoft Windows v8 was published by Outlook Software / Ace Software (previously Good Software) in 1994. This version works on Windows 3.1, 95, 98, and XP, but uses the 8.3 file naming convention. PC File will not run on Windows 7 64 bit, even in the XP compatibility mode, but will run in 'XP Mode'. [2]
In a 1984 review of databases, PC Magazine found that "quite a few ... rough edges" existed, but concluded that "on a performance/price basis, [PC-File III] may be the best money you'll ever spend". [3]
Shareware is a type of proprietary software that is initially shared by the owner for trial use at little or no cost. Often the software has limited functionality or incomplete documentation until the user sends payment to the software developer. Shareware is often offered as a download from a website. Shareware differs from freeware, which is fully-featured software distributed at no cost to the user but without source code being made available; and free and open-source software, in which the source code is freely available for anyone to inspect and alter.
XyWrite is a word processor for MS-DOS and Windows modeled on the mainframe-based ATEX typesetting system. Popular with writers and editors for its speed and degree of customization, XyWrite was in its heyday the house word processor in many editorial offices, including the New York Times from 1989 to 1993. XyWrite was developed by David Erickson and marketed by XyQuest from 1982 through 1992, after which it was acquired by The Technology Group. The final version for MS-DOS was 4.18 (1993); for Windows, 4.13.
Windows Me is an operating system developed by Microsoft as part of its Windows 9x family of Microsoft Windows operating systems. It is the successor to Windows 98, and was released to manufacturing on June 19, 2000, and then to retail on September 14, 2000. It was Microsoft's main operating system for home users until the introduction of its successor Windows XP on October 25, 2001.
FreeDOS is a free software operating system for IBM PC compatible computers. It intends to provide a complete MS-DOS-compatible environment for running legacy software and supporting embedded systems.
4DOS is a command-line interpreter by JP Software, designed to replace the default command interpreter COMMAND.COM
in Microsoft DOS and Windows. It was written by Rex C. Conn and Tom Rawson and first released in 1989. Compared to the default, it has a large number of enhancements.
Jim Knopf, nicknamed Jim Button, was considered by many to be one of the "fathers" of shareware. As an IBM employee, he wrote a program to help with a local church congregation. When demand for his program consumed too much of his time, he quit IBM and created Buttonware. He released his first program, PC-File, in late 1982 as "user supported software". He has been quoted as saying this expression not only reflected the optional payment model, but also that comments from users drove the development of later releases.
PC-Write was a computer word processor and was one of the first three widely popular software products sold via the marketing method that became known as shareware. It was originally written by Bob Wallace in early 1983.
TopView is the first object-oriented, multitasking, and windowing, personal computer operating environment for PC DOS developed by IBM, announced in August 1984 and shipped in March 1985. TopView provided a text-mode operating environment that allowed users to run more than one application at the same time on a PC. IBM demonstrated an early version of the product to key customers before making it generally available, around the time they shipped their new PC AT computer.
In computing, XCOPY
is a command used on IBM PC DOS, MS-DOS, IBM OS/2, Microsoft Windows, FreeDOS, ReactOS, and related operating systems for copying multiple files or entire directory trees from one directory to another and for copying files across a network.
Virtual DOS machines (VDM) refer to a technology that allows running 16-bit/32-bit DOS and 16-bit Windows programs when there is already another operating system running and controlling the hardware.
The Rainbow 100 is a microcomputer introduced by Digital Equipment Corporation (DEC) in 1982. This desktop unit had a monitor similar to the VT220 and a dual-CPU box with both 4 MHz Zilog Z80 and 4.81 MHz Intel 8088 CPUs. The Rainbow 100 was a triple-use machine: VT100 mode, 8-bit CP/M mode, and CP/M-86 or MS-DOS mode using the 8088. It ultimately failed to succeed in the marketplace which became dominated by the simpler IBM PC and its clones which established the industry standard as compatibility with CP/M became less important than IBM PC compatibility. Writer David Ahl called it a disastrous foray into the personal computer market. The Rainbow was launched along with the similarly packaged DEC Professional and DECmate II which were also not successful. The failure of DEC to gain a significant foothold in the high-volume PC market would be the beginning of the end of the computer hardware industry in New England, as nearly all computer companies located there were focused on minicomputers for large organizations, from DEC to Data General, Wang, Prime, Computervision, Honeywell, and Symbolics Inc.
Criticism of Windows XP deals with issues with security, performance and the presence of product activation errors that are specific to the Microsoft operating system Windows XP.
Windows XP, which is the next version of Windows NT after Windows 2000 and the successor to the consumer-oriented Windows Me, has been released in several editions since its original release in 2001.
Windows 3.0 is the third major release of Microsoft Windows, launched in 1990. Its new graphical user interface (GUI) represents applications as clickable icons, instead of the list of file names in its predecessors. Later updates expand capabilities, such as multimedia support for sound recording and playback, and support for CD-ROMs.
MS-DOS is an operating system for x86-based personal computers mostly developed by Microsoft. Collectively, MS-DOS, its rebranding as IBM PC DOS, and a few operating systems attempting to be compatible with MS-DOS, are sometimes referred to as "DOS". MS-DOS was the main operating system for IBM PC compatibles during the 1980s, from which point it was gradually superseded by operating systems offering a graphical user interface (GUI), in various generations of the graphical Microsoft Windows operating system.
DOS is a family of disk-based operating systems for IBM PC compatible computers. The DOS family primarily consists of IBM PC DOS and a rebranded version, Microsoft's MS-DOS, both of which were introduced in 1981. Later compatible systems from other manufacturers include DR-DOS (1988), ROM-DOS (1989), PTS-DOS (1993), and FreeDOS (1998). MS-DOS dominated the IBM PC compatible market between 1981 and 1995.
Tao ExDOS is an emulator software application designed to allow users of old MS-DOS applications to run these applications on new operating systems such as Windows 10, Windows 8, Windows 7, Windows Vista, Windows XP, Windows 2000, and Windows Terminal Server.
In computing, diskcopy is a command used on a number of operating systems for copying the complete contents of a diskette to another diskette.
The command-line tool exe2bin
is a post-compilation utility program available on MS-DOS and other operating systems.