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(Hierarchical File System) The previous file system in the Mac, which was replaced with the Apple File System (see APFS). The first version of HFS, known as "Mac OS Standard," was introduced in 1985. HFS+ ("Mac OS Extended") came out in 1998 in preparation for Mac OS X, featuring Unicode support and a dramatically increased file size from 2GB to 16TB. In 2003, journaling was added (see journaling file system), and case-sensitive file names were introduced under the HFSX option. Case-sensitive names are a standard feature of Unix, and Mac OS X is based on Unix (see Mac OS X).

Data and Resource Forks
The design of HFS departed from other file systems of that day with support for two types of structures: the "data fork" and "resource fork." The data fork is like other file system structures. Data are accessed by an offset into the file; for example: OPEN FILE and READ FROM BYTE 13,904.

The resource fork functions like a mini-database, holding executable code and program structures such as icons, menus and sounds. Instead of storing an executable program as a monolithic block, having the program's resources in separate structures allows them to be edited independently and more easily localized into different languages. In addition, data files can use the two forks with the resource fork acting as a sub-file system. For example, a word processor would naturally have its text in the data fork, but could store images in the resource fork. See APFS, file system and hierarchical file system.
References in periodicals archive ?
We recognize that we have to efficiently increase our capacity to meet our objectives for growth, ever-increasing customer service excellence and eventual paperless processes," said Haywood Solomon, CEO, HFS.
According to HfS, unlike other quadrants and matrices, Blueprint Reports identify relevant differentials between service providers across a number of facets under two main categories: innovation and execution.
HfS provides detailed and thoughtful analyst coverage of the various areas that impact successful business outcomes, namely, process automation and outsourcing, global business services frameworks, mobility, analytics, and social collaboration.
The HFS rats may also have had less brain power because a steady fare of fat and sugar can change how the body responds to insulin, says Carol E.
This makes a tremendous amount of sense for HFS because of the way these businesses fit together, the potential cost savings and because of the revenue enhancing opportunities,'' said Michael Mueller, an analyst at Montgomery Securities.
We will continue to make a positive impact on the business performance of our hospital and healthcare organization clients, and I welcome the opportunity to work with the board and the entire HFS team to build on our history of success.
HFS Federal Credit Union was chartered on January 4, 1937 to serve government employees located on the Island of Hawaii.
David has been instrumental in expanding our Management and Operations practice and playing a critical role in leading hospital and healthcare providers to successfully develop solutions that have resulted in meeting productivity improvement and cost reduction goals," says Richard Gianello, president of HFS.
Prior to joining HFS Consultants, Robeson was president of a firm that he founded, Advanced Health Networks, Inc.
Crocs have become a big hit with the active population," said Kevin Lamar, founder and CEO of LAMAR HFS.
12, 2011 /PRNewswire/ -- HFS Consultants (HFS), which provides a broad range of essential healthcare management solutions to hospitals and other healthcare facilities throughout California, continues to grow with the hiring of two new senior managers, William J.