data stored on electronic media that can be readily accessed or changed.
a digital or photographic representation of a record on any medium such as microfilm or optical disk.
a variety of magnetically coated materials used for computers for data storage; e.g. hard disk, magnetic tape, redundant array of independent disks (RAID) videotape.
a high density information storage medium where digitally encoded information is both written and read by means of a laser.
RAID (redundant array of independent disks)
a computer storage system containing many hard disk drives that send data to a computer over parallel paths.
optical character recognition (OCR)
machine reading of printed or written characters through the use of light sensitive materials or devices.
technology that automatically delivers e-mail and other data to a device based on the user’s profile and request for specific data.
a collection of data designed to support management decision making.
how well the media and the equipment needed to access information stored on the media work together.
the time the media will maintain its original quality so that it can continue to be used.
the process of moving data from one electronic system to another, usually in upgrading hardware and software, without having to undergo a major conversion or reinputting data.
data about data, such as that which describes how, when, and by whom a particular set of data was collected and formatted.
a combination hardware and software buffer that many organizations place between their internal network and the internet to proctect the internal network form outside intrusion.
the process of converting meaningful information into a numeric code that is only understood by t he intended recipient of the information.
the collective term for all microimages such as microfilm, microfiche, aperture cards, or microfilm jackets.
the technology by which recorded information can be reduced to a microform, stored, and retrieved for reference and use.
a measure of the sharpness or fine detail of an image.
the degree of optical opacity of material that determines the amount of light that will pass through it or reflect from it.
the relationship between the dimensions of the original or master and the corresponding dimensions of the photographed image.
the relationship between the size of an image and the original record when viewed on a microfilm reader screen.
a read/write external storage device hat attaches to a computer via a USB port and consists of a small printed circuit board encased in a hard plastic covering.
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