direct access

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direct access

a method of reading data from a computer file without reading through the file from the beginning as on a disk or drum

direct access

[də′rekt ′ak·ses]
(computer science)

direct access

(1) See Microsoft DirectAccess.

(2) The ability to read or write a specific storage location without having to go through any locations before or after it. Generally synonymous with "random access." Magnetic disks, SSDs, optical data discs and RAM are the primary direct access hardware in a computer.

Access Via Software First
Data are commonly accessed by first scanning an index or by a direct access computation that determines their storage addresses. See index, direct access method and random file.


Early Direct Access
Using a deck of 3x14" magnetic cards, NCR's CRAM was a direct access storage device in the 1960s. By the end of that decade, magnetic disks were becoming mainstream. See CRAM for more details. (Image courtesy of NCR Corporation.)
References in periodicals archive ?
As a satisfied direct-access business customer, I encourage the California government to rethink its approach to competitive suppliers.
These include the first real-time financial software under Microsoft Windows(R); the first product to provide real-time streaming market data over the Internet; the first integrated solution for Nasdaq trading rooms; and the first Windows-based direct-access trading solution.
is among the largest direct-access brokerage firms in the industry and operates an Institutional Sales and Trading Division specializing in the execution of complex and sensitive large-block equity transactions for institutions in the buy-side community.
1 direct-access broker in our very first review and in the same week we launched this service speaks volumes for the prospects of our company," said Bill Cruz, Co-Chairman of the Board and Co-CEO.
Fueling TradeStation's growth opportunity in this market is the need these professional traders have for both state-of-the-art, direct-access execution and the advanced strategy testing and automated trading features offered by TradeStation.
expects soon to launch the new TradeStation to institutional, professional and serious, active individual traders -- an electronic trading platform that enables clients to design, test and monitor their own custom trading strategies and then automate them with direct-access order execution.
Our licensing partners have made it very clear that their priorities are 1) a solution for direct-access trading, and 2) a solution for reduction in payment for order flow and decimalization.
It is a great competitive opportunity to be the first to offer direct-access trading to the Apple community.
Huston went on to say, "Mac users fit our direct-access profile quite well and are a great target market for us.
The launch of TradeStation Pro marks the completion of perhaps the most important step in our transition to a unique direct-access brokerage firm focused on serving the needs of the active and professional trader," said Bill Cruz, Co-Chairman and Co-CEO of Omega Research.
The Direct-Access Scan (DAS) mode is available immediately and is free to TDS_SimValidator customers who are on the Fluence TDS maintenance contract.
Nasdaq:OMGA), a leading provider of branded real-time trading tools for active traders and professionals, previewed its direct-access, intelligent order-routing technology with WindowOnWallStreet.