sequential access
)Refers to reading or writing data records in sequential order, that is, one record after the other. To read record 10, for example, you would first need to read records 1 through 9. This differs from random access, in which you can read and write records in any order.
Some programming languages and operating systems distinguish between sequential-access data files and random-access data files, allowing you to choose between the two types. Sequential-access files are faster if you always access records in the same order. Random-access files are faster if you need to read or write records in a random order.
Devices can also be classified as sequential access or random access. For example, a tape drive is a sequential-access device because to get to point q on the tape, the drive needs to pass through points a through p. A disk drive, on the other hand, is a random-access device because the drive can access any point on the disk without passing through all intervening points.
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enterprise application
An enterprise application is the term used to describe applications -- or software -- that a business would use to assist the organization in...
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open source
Generically, open source refers to a program in which the source code is available to the general public for use and/or modification from its...
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CPU - Central Processing Unit
Definition: CPU is the abbreviation for central processing unit. The CPU is the brains of the computer where most calculations take place.
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mobile operating system
An operating system for mobile devices.
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Facebook
The name of a social networking site (SNS) that connects people with friends and others who work, study and live around them.
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ERP - Enterprise Resource Planning
Short for enterprise resource planning, ERP is business management software that allows an organization to use a system of integrated applications...
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RSA Secure ID
RSA SecurID ( “SecurID”) is a two-factor authentication technology that is used to protect network resources.
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ecommerce remarketing
In email and online marketing, remarketing or ecommerce remarketing refers to the techniques, strategies and often the automated email...
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Wi-Fi
A popular wireless networking technology that provides high-speed Internet and network connections.
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RAM
Pronounced ramm, acronym for random access memory, a type of computer memory that can be accessed randomly; that is, any byte of memory can be...
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biometrics
The study of measurable biological characteristics. In computer security, biometrics refers to authentication techniques that rely on physical...
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