*Code Division Multiple Access (CDMA)-to improve the efficiency and quality of digital communications, it transmits multiple encoded messages over a wide frequency and then decodes them at the receiving end.*Communication media-(channels) connect sender and receiver devices. They can be conducted or radiated. *Computer fraud-the unauthorized use of computer data for personal gain.*Computer literacy-skill in using productivity software, such as word processors, spreadsheets, database management systems, and presentation software, as well as having a basic knowledge of hardware and software, the Internet, and collaboration tools and technologies. *Computer-a machine that accepts data as input, processes data without human intervention by using stored instructions, and outputs information.*Conducted media-provide a physical path along which signals are transmitted, including twisted pair copper cable, coaxial cable, and fiber optics*Confidentiality-a system must prevent disclosing information to anyone who is not authorized to access it. *Control unit-tells the computer what to do, such as instructing the computer which device to read or send output to.*Controller-a hardware and software device that controls data transfer from a computer to a peripheral device (examples are a monitor, a printer, or a keyboard) and vice versa. *Convergence-refers to integrating voice, video, and data so that multimedia information can be used for decision making.*Cookies-small text files with unique ID tags that are embedded in a Web browser and saved on the user’s hard drive. *CPU case-a computer chassis or tower. It is the enclosure containing the computer’s main components. *Create, read, update, and delete (CRUD)-refers to the range of functions that data administrators determine who has permission to perform certain functions. *Cybersquatting-registering, selling, or using a domain name to profit from someone else’s trademark.*Data communication-the electronic transfer of data from one location to another.*Data dictionary-stores definitions, such as data types for fields, default values, and validation rules for data in each field.*Data encryption-transforms data, called plaintext or cleartext, into a scrambled form called ciphertext that cannot be read by others. *Datahierarchy-the structure and organization of data, which involves fields, records, and files. *Data mart-usually a smaller version of a data warehouse, used by a single department or function.*Data model-determines how data is created, represented, organized, and maintained. It usually contains data structure, operations, and integrity rules.*Data warehouse-a collection of data from a variety of sources used to support decision making applications and generate business intelligence.
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Data Mining, Computer network, Relational model, Database management system