Civil Rights
Movements, leaders, victories and the continuing fight for equality.
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 1968 Shirley Chisholm became the first Black woman elected to the United States Congress. In 1972 she launched a campaign for the Democratic presidential nomination, breaking another political barrier.
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
| Portable Compiled Format | |
|---|---|
| Filename extension |
.pcf |
| Internet media type | application/x-font-pcf |
| Developed by | X.Org Foundation |
| Type of format | Bitmap font format |
| Open format? | yes |
| Website | The X11 PCF bitmap font file format |
Portable Compiled Format (PCF) is a bitmap font format used by X Window System in its core font system, and has been used for decades. PCF fonts are usually installed, by default, on most Unix-based operating systems, and are used in terminals such as xterm. PCF fonts replaced Bitmap Distribution Format due to a slight efficiency increase, however most applications have moved on to scalable fonts.[1]
Source: Wikipedia. Article content is retrieved live through the MediaWiki API.
Portable Compiled Format (PCF) is a bitmap font format used by X Window System in its core font system, and has been used for decades. PCF fonts are usually installed, by default, on most Unix-based operating systems, and are used in terminals such as xterm. PCF fonts replaced Bitmap Distribution Format due to a slight efficiency increase, however most applications have moved on to scalable fonts.
Server Normal Format (SNF) is a bitmap font format used by X Window. It is one of the oldest X Window font formats. Nowadays it is rarely used, however it is still supported by the latest X.org server. SNF fonts had the problem of being platform dependent, therefore they needed to be compiled on each system. In 1991, X11 moved away from SNF fonts to Portable Compiled Format, which could be shared between systems.
The Portable Sound Format (PSF) is a music file format ripped directly from video games from a variety of video game consoles. The format was originally used for PlayStation video games, but has since been adapted to support other systems. The PSF format was publicly documented by Neill Corlett in 2003, who also wrote a Winamp plug-in named "Highly Experimental" that plays PSF1 and PSF2 files. Generally, PSF files contain a number of samples and a music sequencer player program. This takes far less space than an equivalent streamed format of the same music (WAV, MP3) while still sounding high fidelity. Background music stored in PSF files can usually be looped forever, as the sequencer handles its own loop points. Several PSF sub-formats also have a miniPSF/PSFlib capability, wherein data used by multiple tracks is stored only once in an accompanying PSFlib file. Further differences are stored in a miniPSF file, which can be compressed via zlib to further increase storage efficiency. A PSF2 file is the PlayStation 2 equivalent of a PSF. PSF2 is internally structured as a file system, rather than PSF, which is a single PS executable. PSF's native sample rate is 44,100 Hz, while PSF2's is 48,000 Hz. Rates may vary from 8,000 Hz to 96,000 Hz. Both PSF and PSF2 files contain a header which specifies the type of video game system the file contains data for, and an optional set of tags at the end which can give detailed information such as game name, artist and length.
Standard Portable Intermediate Representation (SPIR) is an intermediate language for parallel computing and graphics by Khronos Group. It is used in multiple execution environments, including the Vulkan graphics API and the OpenCL compute API, to represent a shader or kernel. It is also used as an interchange language for cross compilation. SPIR-V is a new version of SPIR which was introduced in 2015 by the Khronos Group, and has since replaced the original SPIR, which was introduced in 2012. On September 19th 2024, Microsoft has announced plans to adopt SPIR-V as the Direct3D Interchange format in place of DXIL, beginning support from Shader Model 7 on.
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.