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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private cloud project
Companies initiate private cloud projects to enable their IT infrastructure to become more capable of quickly adapting to continually evolving...
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cloud backup
A cloud backup (cloud computer backup) refers to backing up data to a remote, cloud-based server. As a form of cloud storage, cloud backup data is...
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mobile operating system
The mobile operating system is the software platform on top of which other programs, called application programs, can run on mobile devices.
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big data
A catch-phrase, used to describe a massive volume of both structured and unstructured data that is so large that it's difficult to process with...
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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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private cloud
The phrase used to describe a cloud computing platform that is implemented within the corporate firewall, under the control of the IT department....
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BYOD - bring your own device
A phrase that has become widely adopted to refer to mobile workers bringing their own mobile devices, such as smartphones, laptops and PDAs, into...
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consumerization of IT
Consumerization of IT is a phrase used to describe the cycle of information technology (IT) emerging in the consumer market then spreading to...
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CRM - Customer Relationship Management
Short for customer relationship management, CRM entails all aspects of interaction a company has with its customer, whether it be sales or service...
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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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Android Apps for Remote Computer Access
Remote access is useful when you need to collaborate with co-workers, help a friend with PC problems or grab files from your desktop.
