Civil Rights
Movements, leaders, victories and the continuing fight for equality.
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Explore the people, places, events, achievements, struggles and stories that shaped our journey.
Movements, leaders, victories and the continuing fight for equality.
Innovation, patents, science, technology and world-changing contributions.
Pioneers, champions, Negro Leagues, records, activism and excellence.
Meet the people whose lives, choices and achievements shaped the journey.
Black towns, communities, institutions and places where history happened.
Moments that changed communities, movements, institutions and the nation.
In August 1908, a white mob attacked Springfield, Illinois’s Black community, destroying homes and businesses and lynching two Black men. National outrage over the violence helped spur the movement that created the NAACP the following year.
MORE →Reflects the personal views, recollections, and perspective of the author, Mike Davis.
This is a personal recollection on the Move fire on May 13, 1985
| RealPC | |
|---|---|
| Operating system | Classic Mac OS |
| Available in | English |
| Type | Virtual machine, emulator |
RealPC was a Macintosh program that emulates an x86 PC, allowing the use of MS-DOS, Windows NT, Windows 95, and Windows 98. RealPC was compatible with PowerPC Macs running system software 7.1.2 through 9.2. Requirements were: Any Power Macintosh or Mac OS compatible, System 7.1.2 or later, Minimum 16 Mbytes of RAM, hard drive space for 50 Mbytes (MS-DOS), 60 Mbytes (Windows 3.x), 130 Mbytes (Windows 95), and any Macintosh compatible CD-ROM drive. RealPC emulated a Pentium-based PC with MMX technology, supported Sound Blaster and MMX, and allowed you to use a Macintosh joystick, allowing you to run PC programs, including MS-DOS and Windows, games and applications, alongside your existing Macintosh applications. RealPC was provided with MS-DOS 6.22 already installed, so you could immediately run MS-DOS games and applications on your Macintosh. Linux was not supported, and due to shared RAM between Mac OS and RealPC, Windows 98 was the reasonable limit. RealPC was able to convert Virtual-PC hard disk files to use and run the installed OS.[1][2][3] Its box and CD featured the image of silent film star Harold Lloyd. RealPC was discontinued in 2003.[4][5]
RealPC is a rebranded SoftPC
Source: Wikipedia. Article content is retrieved live through the MediaWiki API.
RealPC was a Macintosh program that emulates an x86 PC, allowing the use of MS-DOS, Windows NT, Windows 95, and Windows 98. RealPC was compatible with PowerPC Macs running system software 7.1.2 through 9.2. Requirements were: Any Power Macintosh or Mac OS compatible, System 7.1.2 or later, Minimum 16 Mbytes of RAM, hard drive space for 50 Mbytes (MS-DOS), 60 Mbytes (Windows 3.x), 130 Mbytes (Windows 95), and any Macintosh compatible CD-ROM drive. RealPC emulated a Pentium-based PC with MMX technology, supported Sound Blaster and MMX, and allowed you to use a Macintosh joystick, allowing you to run PC programs, including MS-DOS and Windows, games and applications, alongside your existing Macintosh applications. RealPC was provided with MS-DOS 6.22 already installed, so you could immediately run MS-DOS games and applications on your Macintosh. Linux was not supported, and due to shared RAM between Mac OS and RealPC, Windows 98 was the reasonable limit. RealPC was able to convert Virtual-PC hard disk files to use and run the installed OS. Its box and CD featured the image of silent film star Harold Lloyd. RealPC was discontinued in 2003.
SoftPC is a software emulator of x86 hardware. It was developed by Rod MacGregor, Henry Nash & Phil Bousfield, following the founding of Insignia Solutions in 1986 by MacGregor, with "about a dozen people who had left the CAD/CAM workstation specialist Computervision", believing in a market opportunity for an independent CAD/CAM consultancy. Originally a side project, SoftPC quickly became the main focus for the company, running PC software on workstations. Originally developed on SPARCstations, the first customer to license the software was Intergraph whose workstation had a proprietary processor architecture. Available originally on UNIX workstations to run MS-DOS, the software was ported to the Macintosh in 1987, and later gained the ability to run Microsoft Windows software. Besides Mac OS, supported platforms included SGI IRIX, Sun Solaris, HP-UX, IBM AIX, NeXTSTEP, Motorola 88000, OpenVMS on VAX and DEC Alpha systems, DEC ULTRIX, and others. Bundles of SoftPC with Windows (3.x, 95, 98) were called SoftWindows, although it was possible to install Windows into the basic SoftPC environment along with some special utilities provided by Insignia to achieve the same effect. The introduction of Windows and applications running in that environment, as opposed to DOS, changed the underlying conditions for emulators, and Insignia's SoftWindows product was described, in comparison to SoftPC, as "a complete redesign, mandated by the size and complexity of Windows programs". The execution characteristics, described as "narrow and deep" in DOS applications, were instead "broad and shallow" in Windows applications, making it more difficult to identify sections of code for translation to the native architecture of the computer running the emulator. Insignia entered into a development agreement with Microsoft giving the company access to Windows source code. This agreement covered the product then known as Windows 4 as well as Windows NT, on which Microsoft was seeking to support compatibility for Intel architecture binaries on RISC architecture systems. When Microsoft released Windows NT it included a subsystem ("WOW" - Windows on Windows, later NTVDM) for running virtualized 16-bit Windows (x86) programs. However, it had also made changes to Windows to allow it to run on alternative processors (Alpha, PowerPC), and for these an emulation layer was needed for programs compiled for Intel processors. Customized versions of Insignia's core emulation system were produced to this end, but the alternative NT architectures never became widely used. Beginning in 1996, Insignia commanded the niche for this product area, but it soon faced heavy competition from Connectix with their Virtual PC product. Insignia sold the product line to FWB Software in October 1999 in order to focus on supplying implementations of Java for the mobile device market. FWB continued to sell SoftWindows until March 2001. FWB Software also marketed a separate version of the software that did not include a bundled copy of Windows, called RealPC, until 2003. Unlike most emulators, the SoftWindows product used recompiled Windows components to improve performance in most business applications, providing almost native performance (but this meant that, unlike SoftPC, SoftWindows was not upgradable).
In the x86 architecture, the CPUID instruction (identified by a CPUID opcode) is a processor supplementary instruction (its name derived from "CPU Identification") allowing software to discover details of the processor. It was introduced by Intel in 1993 with the launch of the Pentium and late 486 processors. A program can use the CPUID to determine processor type and whether features such as MMX/SSE are implemented.
Mac gaming refers to the use of video games on Macintosh personal computers. In the 1990s, Apple computers did not attract the same level of video game development as Microsoft Windows computers due to the high popularity of Windows and, for 3D gaming, Microsoft's DirectX technology. In recent years, the introduction of Mac OS X and support for Intel processors has eased the porting of many games, including 3D games through use of OpenGL, and more recently, Apple's own Metal API. Virtualization technology and the Boot Camp dual-boot utility also permit the use of Windows and its games on Macintosh computers. Today, a growing number of popular games run natively on macOS, though as of early 2019, a majority still require the use of Microsoft Windows. macOS Catalina (and later) eliminated support for 32-bit games, including those compatible with older versions of macOS.
Before the 1921 destruction of Tulsa’s Greenwood District, Black residents had created a remarkable center of business and community life. The district included stores, professional offices, entertainment venues and homes owned by Black citizens. Understanding Greenwood means learning what was built—not only what was burned.
MORE →Shirley Chisholm, elected in 1968.
