Types of memory that retain their contents when power is turned off. ROM is nonvolatile, whereas RAM is volatile. This term often refers to the CMOS memory in PCs that holds the BIOS.
- nondeterministic system
A system in which the output cannot be predicted because there are multiple possible outcomes for each input. Contrast with deterministic system.
(1) In relational database design, the process of organizing data to minimize redundancy. Normalization usually involves dividing a database into two or more tables and defining relationships between the tables. The objective is to isolate data so that additions, deletions, and modifications of a fieldcan be made in just one table and then propagated through […]
In reference to digital security, nonrepudiation means to ensure that a transferred message has been sent and received by the parties claiming to have sent and received the message. Nonrepudiation is a way to guarantee that the sender of a message cannot later deny having sent the message and that the recipient cannot deny having […]
- not invented here syndrome
Not invented here syndrome (NIHS) is a slightly tongue-in-cheek name for the tendency of both individual developers and entire organizations to reject suitable external solutions to software development problems in favor of internally developed solutions. Closely related to the “let’s re-invent the wheel” syndrome, NIHS can be seen in intensities ranging from a mild reluctance […]
- null character
A character that has all its bits set to 0. A null character, therefore, has a numeric value of 0, but it has a special meaning when interpreted as text. In some programming languages, notably C, a null character is used to mark the end of a character string. In database and spreadsheet applications, null […]