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
The Logic File System is a research file system which replaces pathnames with expressions in propositional logic. It allows file metadata to be queried with a superset of the Boolean syntax commonly used in modern search engines.
The actual name is the Logic Information Systems File System, and is abbreviated LISFS to avoid confusion with the log-structured file system (LFS). An implementation of the Logic File System is available at the LISFS website.[1]
It is intended to be used on Unix-like operating systems and is a bit difficult to install, as it needs several non-standard OCaml modules.
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Source: Wikipedia. Article content is retrieved live through the MediaWiki API.
The Logic File System is a research file system which replaces pathnames with expressions in propositional logic. It allows file metadata to be queried with a superset of the Boolean syntax commonly used in modern search engines. The actual name is the Logic Information Systems File System, and is abbreviated LISFS to avoid confusion with the log-structured file system (LFS). An implementation of the Logic File System is available at the LISFS website. It is intended to be used on Unix-like operating systems and is a bit difficult to install, as it needs several non-standard OCaml modules.
Motorola S-record is a file format, created by Motorola in the mid-1970s, that conveys binary information as hex values in ASCII text form. This file format may also be known as SRECORD, SREC, S19, S28, S3, S37. It is commonly used for programming flash memory in microcontrollers, EPROMs, EEPROMs, and other types of programmable logic devices. In a typical application, a compiler or assembler converts a program's source code (such as C or assembly language) to machine code and outputs it into a HEX file. The HEX file is then imported by a programmer to write the machine code into non-volatile memory, or is transferred to the target system for loading and execution.
In computing, a file system or filesystem (FS or fs) governs file organization and access. A local file system is a capability of an operating system that services the applications running on the same computer. A distributed file system is a protocol that provides file access between networked computers. A file system provides a data storage service that allows applications to share mass storage. Without a file system, applications could access the storage in incompatible ways that lead to resource contention, data corruption, and data loss. There are many file system designs and implementations – with various structures and features and various resulting characteristics such as speed, flexibility, security, size, and more. File systems have been developed for many types of storage devices, including hard disk drives (HDDs), solid-state drives (SSDs), magnetic tapes and optical discs. A portion of the computer main memory can be set up as a RAM disk that serves as a storage device for a file system. File systems such as tmpfs can store files in virtual memory. A virtual file system provides access to files that are either computed on request, called virtual files (for example those provided by procfs and sysfs), or are mapping into another, backing storage.
Typically, a file system maintains permission settings for each stored item – commonly files and directories – that either grant or deny the ability to manipulate file system items. Often the settings allow controlling access based on function such as read, change, navigate, and execute and to different users and groups of users. One well-established technology was developed for Unix, later codified by POSIX and is used in Linux. Another common technology is an access-control list (ACL) with multiple variants implemented in file systems and one codified by POSIX. Since POSIX defines both the older Unix-based technology as well as ACLs, the former is called traditional POSIX permissions for clarity even though it is not a well-known term. A permission-driven user interface tailors the functionality available to the user based on file system item permissions. For example, the interface might hide menu options that are not allowed based on the permissions stored for an item.
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 →Brown v. Board of Education in 1954.
