To illustrate what state legislatures have been doing with definitions, we set forth here Tennessee's definitions, which are typical in one important respect, and atypical in another. In their 1989 form, which appears here in Roman type, Tennessee's definitions were typical of those adopted by several states. They are atypical in that they have been substantially rewritten twice. Most states have never touched their original definitions. Tennessee's 1989 definitions are a rewrite of an earlier set, enacted in 1987????. In 1993, the Tennessee legislature added the materials that appear in Italic type. As can be seen, the additions complicate the definitions without necessarily embracing a broader range of undesirable activity. However, the addition of a definition of "contaminants," including worms and viruses, was plainly seen as reaching type of problem brought to public attention by Robert Morris's attack on the Internet. (1) "Access" means to approach, instruct, communicate or connect with, store data in, retrieve or intercept data from, or otherwise make use of any resources of, a computer, computer system, or computer network, or information exchanged from any communication between computers or authorized computer users and electronic, electromagnetic, electrochemical, acoustic, mechanical or other means; (2) "Computer" means a device or collection of devices, including its support devices or peripheral equipment or facilities, and the communications systems connected to it which can perform that functions including, but not limited to, substantial computation, including numerous arithmetic or logical operations, Information storage or retrieval operations, capable of being used with external files, one or more operations which contain computer programs, electronic instructions, allows for the input of data, and output data (such operations can occur with or without intervention by a human operator during the processing of a job); (3) "Computer contaminants" means any set of computer instructions that are designed to modify or in any way alter, damage, or disrupt the proper operation of a computer system, or computer network without the intent or permission of the owner of the information. They include, but are not limited to, a group of computer instructions called viruses or worms, which are self-replicating or self-propagating and are designed to contaminate other computer programs or computer data, consume computer resources, modify, destroy, record or transmit data, or in some other fashion usurp the normal operation of the computer, computer system, or computer network. Such contaminants may include: (A) "Virus," meaning a migrating program which, at least, attaches itself to the operating system of any computer it enters and can infect any other computer that has access to an "infected" computer. (B) "Worm," meaning a computer program or virus that spreads and multiplies, eventually causing a computer to "crash" or cease functioning, but does not attach itself to the operating system of the computer it "infects"; and (4) "Computer network" means a set of two (2) or more computer systems that transmit data over communication circuits connecting them, and input devices connecting them, and input/output devices including but not limited to, display terminals and printers, which may also be connected with telecommunication facilities;; (5) "Computer program" means an ordered set of data that are coded instructions or statements that when executed by a computer cause the computer to process data; (6) "Computer software" means a set of computer programs, procedures, and associated documentation concerned with the operation of a computer, computer system, or computer network whether imprinted or embodied in the computer in any manner or separate from it, including the supporting materials for the software and accompanying documentation; (7) "Computer system" means a set of connected devices in- cluding a computer and other devices including, but not lim- ited to, one (1) or more of the following: data input, out- put, or storage devices, data communication circuits, and operating system computer programs that make the system capable of performing data processing tasks; (8) "Data" is a representation of information, knowledge, facts, concepts, or instructions which are being prepared or have been prepared in a formalized manner, and is intended to be stored or processed, or is being stored or processed, or has been stored or processed, in a computer, computer system, or computer network; (9) "Financial instruments" includes, but is not limited to, any check, cashier's check, draft, warrant, money order, certificate of deposit, negotiable instrument, letter of credit, bill of exchange, credit card, debit card, or mar- ketable security, or any computer system representation thereof; (10) "Input" means data, facts, concepts or instructions in a form appropriate for delivery to, or interpretation or processing by, a computer; (11) "Intellectual property" includes data, which may be in any form including, but not limited to, computer printouts, magnetic storage media, punched cards, or may be stored in- ternally in the memory of a computer; (12) "Output" means data, facts, concepts or instructions produced or retrieved by computers from computers or computer memory storage devices; (13) "To process" is to use a computer to put data through a systematic sequence of operations for the purpose of pro- ducing a specified result; (14) "Property" includes, but is not limited to, intellec- tual property, financial instruments, data, computer pro- grams, documentation associated with data, computers, com- puter systems and computer programs, all in machine-readable or human-readable form, and any tangible or intangible item of value; and (15) "Services" includes, but is not limited to, the use of a computer, a computer system, a computer network, computer software, computer program, or data to perform tasks. (16) "System hacker" means any person who knowingly accesses and without permission alters, damages, deletes, destroys, or otherwise uses any data, computer, computer system, or computer network.1 Most of the "contaminants" definition is taken directly from the California Code, to which we will return later in a specific discussion of worms ands viruses.2 1 _Tenn. Code ¤ 39-14-601, as amended, Acts 1993, ch. 445, ¤ 1. 2 See text at note ----.