007 - Electronic Resource (R)

One-character alphabetic code that indicates the category of material to which the item belongs is electronic resource (e.g, programs, data files, image files, digitized audio and video tapes, etc.), which usually consist of digitized machine-readable data, program code, etc. intended to be accessed, processed, or executed by a computer. A fill character (|) is not allowed in this position.

Removable module containing secondary storage medium such as magnetic tape or magnetic disks.

Removable module containing a miniaturized electronic circuit, mass-produced on a tiny chip or wafer of silicon, designed to provide additional processing, memory, or storage capacity to a computer. Includes several types of solid-state, memory/storage devices such as non-rewritable ROM-chip cartridges and rewritable flash drives (e.g. USB keys).

Removable module containing one or more nonmagnetic discs used to store digital information.

A disc whose type is not specified.

A disc cartridge whose type is not specified.

Removable module, somewhat like an audio cassette, that contains magnetic tape that can be written on and read from by a tape drive.

Removable spool containing magnetic tape that can be written to and read from by a tape drive.

Digital information storage medium usually consisting of a thin Mylar disk coated with a magnetic material that permits the recording of data. Magnetic disks come in various sizes. They are also known as floppy disks, stiffy disks, computer diskettes, or floppy diskettes.

Erasable or semi-erasable storage medium, similar to a CD-ROM disc, capable of storing data at a very high density. The disc is written to and read from using a laser beam used to heat the recording surface to a point at which regions of the surface of the disk become magnetically aligned to store bits of data.

Medium that uses a series of laser-burned micron-sized holes (pits) on a special recording surface to store data. Recorded data is read optically. These discs are usually a read-only medium. Commonly found computer optical disc formats include: CD-A, CD-I, CD-R, CD-ROM, CD-ROM-XA, DVD-ROM and Photo CD.

Electronic resource that is accessed, processed, executed, etc. remotely. In this case the electronic resource is used via input/output devices connected electronically to a computer. Frequently this involves connection through a computer network. The specific material designation of the remotely accessed physical item (e.g., a CD-ROM accessed remotely through a network) is not specified when code r is used in 007/01.

Standalone devices consist of storage and reader components as an integrated standalone device. The data storage medium cannot be removed from the playback device with which it is issued. The data carried on the medium can only be read using the integrated special-purpose device.

Special material designation for the electronic resource is not specified, e.g., it may be an electronic resource that changes its medium over time.

None of the other codes is appropriate.

Images are intended to be produced in a single color other than black (e.g. pink and white, brown and white). If the images are black with white use code b.

Images are intended to be produced in black and white. ASCII files, which do not include color, are coded as b.

Image is printed or executed in more than one color. Code c is used for color photographic processes.

Image is produced with degrees of dark to light from black to gray to white.

Work or collection is a combination of one color, black-and-white, multicolored, hand colored, and/or other images.

Color is not applicable to the electronic resource, usually because it does not involve anything visual (e.g., digitally encoded audio data).

Color characteristics of an item are not known.

None of the other codes is appropriate.

Diameter of the medium is 3 1/2 inches. It usually refers to the diameter of a magnetic disk.

Diameter of the medium is 12 inches. It usually refers to optical or magneto-optical disc.

Diameter of the medium is 4 3/4 inches (or 12 cm.) It usually refers to optical or magneto-optical disc.

Dimensions of the container used for the medium are 1 1/8 x 2 3/8 inches. It usually refers to cartridges.

Dimensions of the container used for the medium are 3 7/8 x 2 1/2 inches. It usually refers to cartridges.

Physical dimensions are not applicable to the electronic resource. This code is appropriate for remote electronic resources and electronic resources whose specific medium varies (coded u in byte 01).

Diameter of the medium is 5 1/4 inches. It usually refers to the dimensions of a magnetic disk.

Dimensions of the medium used for the electronic resource are not known.

Diameter of the medium is 8 inches. It usually refers to the diameter of a magnetic disk or optical disc.

None of the other codes is appropriate.

Not intended to produce sound.

Includes digitally encoded sound or is intended to produce sound.

Presence or absence of sound or the ability of an electronic resource to produce sound is not known.

Image bit depth should be recorded if a single numeric value applies to all files, e.g., all files were scanned in 24-bit color. The numeric value of the image bit depth, using three digits, is right justified with leading zeros (e.g., 001, 024).

Comprised of images that have been scanned and captured at more than one bit depth, such as a volume with text and color images where the text has been scanned as bitonal (1-bit) images and the color plates have been scanned and captured using 24-bit color.

Bit-depth is not applicable to this electronic resource because there are no images.

Bit depth level of the image(s) comprising the electronic resource are not known.

File(s) which comprise(s)the electronic resource are of the same format or type (e.g., all .jpg; all .tif; all .txt; all .wav; all .mpg; etc.).

Files which comprise the electronic resource are of at least 2 different formats (e.g., .jpg and .tif; .tif and .txt; .sgml and .wav; etc.).

Format(s) of the file(s) which comprise(s) the electronic resource are not known.

Quality assurance targets were not included at the time of reformatting and/or are not present in the electronic resource.

Inclusion of quality assurance targets is not applicable to this electronic resource.

One or more quality assurance targets were appropriately included at the time of reformatting and are present in the electronic resource. Commonly found quality control targets for scanning include the Kodak Q13 or Q14 Color Separation Guide and Gray Scale; Kodak Q60 Color Input Target; AIIM Scanning Test Chart #2; and the RIT Alphanumeric Resolution Test Object. Commonly found quality assurance targets for re-recording/transfer of audio files include reference and azimuth tones.

Presence of quality assurance targets in the electronic resource is not known.

Content (image, audio, or video) comprising the electronic resource has been created by digitization of the original item. Common examples of original objects include: printed or manuscript texts and/or images that are made on paper or on vellum; photographic prints (and in some instances photographic negatives, depending on creator's intent); analog audio formats; and video formats. This value does not pertain to microform even if microform is the original.

Content comprising the electronic resource has been created by scanning from microform (16mm microfilm, 35mm microfilm, 105mm microfiche, microcard, micro-opaque, etc.).

Electronic resource has been created or copied from an existing electronic resource (e.g., to generate new copies or derivative copies with lower resolution or smaller file size; to process an existing file with Optical Character Recognition - OCR - software; etc.).

Content comprising the electronic resource has been created by reformatting/digitizing from an intermediate other than microform. Common examples of non-microfom intermediates for visual and textual materials are: photocopies, 35 mm film, transparencies, slides, 2nd generation video tape, etc. A common example of an intermediate for audio materials is 2nd generation analog tapes.

Images comprising the electronic resource have been created from mixed sources (portions scanned from original item, portions scanned from microfilm, etc.).

Antecedent or source are not applicable to this electronic resource. This code is appropriate for electronic resources other than those created during a reformatting process.

Antecedent or source of this reformatted electronic resource is not known.

Electronic resource has not been compressed through the use of any compression technique.

Electronic resource has been compressed and the compression type used is "lossless." Lossless compression will allow an electronic resource to be compressed and decompressed with absolute fidelity each time. To be considered lossless, no informational loss may occur during this process. An example of a lossless compression scheme would be TIFF Group 4 compression employed on bitonal image files.

Electronic resource has been compressed and the compression type used is "lossy." Lossy compression schemes employ techniques which average or discard some of the encoded digital information. When the file is decompressed, it will not be an exact replica of the original file. Examples of lossy compression schemes include JPEG, and Kodak ImagePac (Photo CD), AC-3 (Dolby Digital) and MPEG.

Mixture of techniques has been used to compress various parts of the electronic resource.

Compression techniques are not known.

Electronic resource is of a quality that will support current, electronic access to the original item (reference use), but is not sufficient to serve as a preservation copy.

Examples of electronic resources created for access purposes may include images created for a temporary, online exhibition (possibly to mirror an in-house installation); compressed, lower resolution versions of higher-quality master files that allow for easier transmission and access over the Internet; video converted to MPEG-2 for Internet access; photos which have been scanned at lower resolutions to create an online browsing tool for a collection; or articles scanned as a part of an E-Reserve collection which will be discarded in accordance with previous copyright agreements which specify a time limit on the retention of the electronic resource.

Reformatting quality is not applicable to the electronic resource.

Electronic resource was created via reformatting to help preserve the original item.

Capture and storage techniques associated with preservation files ensure high-quality, long-term electronic resources that warrant long-term protection.

Electronic resource is of very high quality and, when printed out, viewed on screen or played via a listening device could serve as a replacement should the original be lost, damaged, or destroyed.

Reformatting quality of the electronic resource is not known.