Access code
From ArticleWorld
An access code is a sequence of alphanumeric characters that should be entered into a verification system in order to gain access to a secure service. This system may be used in combination with other identification techniques like fingerprint or retinal identification and radio-frequency identification (RFID).
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Need for access codes
An access code is needed for a number of applications that require secure access. It prevents unauthorized use of services and facilities, thus providing protective measures as a result. Examples of such systems include secret databases of organizations, online resources and libraries for students, telephone networks and automated teller machines.
Commercial houses and government bodies
In the case of commercial organizations, trade secrets and details of project management are required to be kept secret to sustain an effective and competitive business. Access to confidential information is allowed only to top officials and strategy-makers in any business house. Thus an access code is used for providing the key to classified data. Similar benefits are achieved in computerized systems in governmental and defense organizations; national security is safeguarded as a result.
Student resources
When it comes to student resources, it prevents access to students who have not paid for accessing resources, or do not belong to the particular educational institution. In this way, it serves to protect the intellectual rights of mentors and motivates them to serve their students better.
Telephone networks
Telephone networks also require access codes as a way to allow subscribers to avail of particular services. In such cases, the access codes may be known publicly for the benefit of users.
Automated teller machines (ATMs)
Access codes are provided to bank customers to allow them to both access account details and to deposit or withdraw money from automated teller machines (ATMs). This prevents the unauthorized use of ATM cards that are used to access the bank's computer network.