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File:  Type of Computer File



Bytes

COM: 008/26; 006/09

Input Standards

COM: Optional. One-character code. Default: u

Definition

 
COM, 006 

The type of computer file. Such a file is a body of information or instructions encoded so that it requires the use of a computer (or related machine) to be properly interpreted. This term encompasses both data files (numeric files, representational files and text files) and computer program files.

Codes

 
 
a  Numeric data. Files that are mostly numbers or representation by numbers (e.g., student test scores, football team statistics, etc.). The information may be original surveys or information that has been summarized or statistically manipulated.
 
b  Computer program. Ordered sets of instructions directing the computer to perform operations and identifying the information and mechanisms required. A program is a series of instructions given to complete a task.

Use for micro-computer software.

Use also for computer models, which are a characterization in mathematical terms of a process, object or concept, that enables the manipulation of variables to determine how the process, object or concept would behave in different situations.

 
c  Representational. Files that have pictorial or graphic data. The pictorial and graphic data can be manipulated in conjunction with other types of files to produce graphic patterns, which can be used to interpret and give meaning to the information. Use for both still and moving images.
 
d  Document. Files that are mostly alphabetic information (words or sentences) converted into a code that can be processed, sorted and manipulated by machine and then retrieved in many optional formats.

Use for records containing full text of documents and material intended to constitute a textual document, whether represented as ASCII or image data.

Use for both single bibliographic entities or a collection of bibliographic entities. Documents whose primary purpose is textual, even if search software is present, are coded d.

 
e  Bibliographic data. Data that are bibliographic citations, including library catalogs or citation databases. May be structured or unstructured.
 
f  Font. File contains information for a computer to produce fonts.
 
g  Game. File is for recreational or educational use. Usually text and software, including videogames.
 
h  Sounds. File has data encoding computer producible sounds.
 
i  Interactive multimedia. Item supports navigation through and manipulation of many kinds of media (audio, video, etc.) in which the user has an almost conversational interaction with the computer.
 
j  Online system or service. Record is for an online system or service that may contain nonbibliographic information. An online system or service supports system based user interaction. For example, online library systems, FTP sites, electronic bulletin boards or network information centers.
 
m  Combination. Computer models and numeric data files or computer programs and text files.
 
u  Unknown 
 
z  Other 

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