NCache may refer to:
 | This disambiguation page lists articles associated with the title NCache. If an internal link led you here, you may wish to change the link to point directly to the intended article. |
Time to live (TTL) or hop limit is a mechanism that limits the lifespan or lifetime of data in a computer or network. TTL may be implemented as a counter or timestamp attached to or embedded in the data. Once the prescribed event count or timespan has elapsed, data is discarded or revalidated. In computer networking, TTL prevents a data packet from circulating indefinitely. In computing applications, TTL is commonly used to improve the performance and manage the caching of data.
A disk array is a disk storage system which contains multiple disk drives. It is differentiated from a disk enclosure, in that an array has cache memory and advanced functionality, like RAID, deduplication, encryption and virtualization.
In computing, specifically in Unix and Unix-like operating systems, a raw device is a special kind of logical device associated with a character device file that allows a storage device such as a hard disk drive to be accessed directly, bypassing the operating system's caches and buffers. Applications like a database management system can use raw devices directly, enabling them to manage how data is cached, rather than deferring this task to the operating system.
Connectix Corporation was a software and hardware company, noted for having released innovative products that were either made obsolete as Apple Computer incorporated the ideas into system software, or were sold to other companies once they become popular. It was formed in October 1988 by Jon Garber; dominant board members and co-founders were Garber, Bonnie Fought, and close friend Roy McDonald. McDonald was still Chief Executive Officer and president when Connectix finally closed in August 2003.
A CPU cache is a hardware cache used by the central processing unit (CPU) of a computer to reduce the average cost to access data from the main memory. A cache is a smaller, faster memory, located closer to a processor core, which stores copies of the data from frequently used main memory locations. Most CPUs have different independent caches, including instruction and data caches, where the data cache is usually organized as a hierarchy of more cache levels.
Emera Incorporated is a publicly traded energy company. As of 2018, it had revenues of more than $6.5 billion, and assets of $32 billion. Based in Halifax, Nova Scotia, Canada, Emera's President and CEO is Scott Balfour. The company primarily invests in regulated electricity generation and electricity and gas transmission and distribution with a strategic focus on transformation from high carbon to low carbon energy sources. Emera has investments throughout North America, and in four Caribbean countries.As of 2018 the Emera group of companies had approximately 7,500 employees.
In computing, cache algorithms are optimizing instructions, or algorithms, that a computer program or a hardware-maintained structure can utilize in order to manage a cache of information stored on the computer. Caching improves performance by keeping recent or often-used data items in memory locations that are faster or computationally cheaper to access than normal memory stores. When the cache is full, the algorithm must choose which items to discard to make room for the new ones.
The Global Assembly Cache (GAC) is a machine-wide CLI assembly cache for the Common Language Infrastructure (CLI) in Microsoft's .NET Framework. The approach of having a specially controlled central repository addresses the flaws in the shared library concept and helps to avoid pitfalls of other solutions that led to drawbacks like DLL hell.
PC Tools was a collection of software utilities for DOS developed by Central Point Software.
Embedded DRAM (eDRAM) is dynamic random-access memory (DRAM) integrated on the same die or multi-chip module (MCM) of an application-specific integrated circuit (ASIC) or microprocessor. eDRAM's cost-per-bit is higher when compared to equivalent standalone DRAM chips used as external memory, but the performance advantages of placing eDRAM onto the same chip as the processor outweigh the cost disadvantages in many applications. In performance and size, eDRAM is positioned between level 3 cache and conventional DRAM on the memory bus, and effectively functions as a level 4 cache, though architectural descriptions may not explicitly refer to it in those terms.
System File Checker (SFC) is a utility in Microsoft Windows that allows users to scan for and restore corruptions in Windows system files.
Windows File Protection (WFP), a sub-system included in Microsoft Windows operating systems of the Windows 2000 and Windows XP era, aims to prevent programs from replacing critical Windows system files. Protecting core system files mitigates problems such as DLL hell with programs and the operating system. Windows 2000, Windows XP and Windows Server 2003 include WFP under the name of Windows File Protection; Windows Me includes it as System File Protection (SFP).
Disk Clean-up (cleanmgr.exe) is a computer maintenance utility included in Microsoft Windows designed to free up disk space on a computer's hard drive. The utility first searches and analyzes the hard drive for files that are no longer of any use, and then removes the unnecessary files. There are a number of different file categories that Disk Clean-up targets when performing the initial disk analysis:
Database caching is a process included in the design of computer applications which generate web pages on-demand (dynamically) by accessing backend databases.
The Belly River Ranger Station Historic District in Glacier National Park includes several historic structures, including the original ranger station, now used as a barn. The rustic log structures were built beginning in 1912. Other buildings include a woodshed, built in 1927 to standard National Park Service plans and a cabin used as a fire cache.
Redis is an in-memory data structure project implementing a distributed, in-memory key-value database with optional durability. Redis supports different kinds of abstract data structures, such as strings, lists, maps, sets, sorted sets, HyperLogLogs, bitmaps, streams, and spatial indexes. The project is mainly developed by Salvatore Sanfilippo and as of 2019, is sponsored by Redis Labs. It is open-source software released under a BSD 3-clause license.
NetCache is a former web cache software product which was owned and developed by NetApp between 1997 and 2006, and a hardware product family incorporating the NetCache software.
The cache manifest in HTML5 is a software storage feature which provides the ability to access a web application even without a network connection. It became part of the W3C Recommendation on 28 October 2014. This feature is in the process of being removed from the Web platform. Using any of the offline Web application features at this time is highly discouraged. Use service workers instead.
In computing, a distributed cache is an extension of the traditional concept of cache used in a single locale. A distributed cache may span multiple servers so that it can grow in size and in transactional capacity. It is mainly used to store application data residing in database and web session data. The idea of distributed caching has become feasible now because main memory has become very cheap and network cards have become very fast, with 1 Gbit now standard everywhere and 10 Gbit gaining traction. Also, a distributed cache works well on lower cost machines usually employed for web servers as opposed to database servers which require expensive hardware. An emerging internet architecture known as Information-centric networking (ICN) is one of the best examples of a distributed cache network. The ICN is a network level solution hence the existing distributed network cache management schemes are not well suited for ICN. In the supercomputer environment, distributed cache is typically implemented in the form of burst buffer.
Nette Framework is an open-source framework for creating web applications in PHP 5 and 7. It supports AJAX, DRY, KISS, MVC and code reusability. Original author of the framework is David Grudl, but further development is now maintained by the Nette Foundation organization. Nette is a free software released under both the New BSD license and the GNU GPL version 2 or 3.