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Unformatted text preview: the objects.
Object-oriented programming languages: Programming languages that encapsulate
data as well as sequences of operations into abstract entities called objects,
providing a stronger encapsulation mechanism than procedures. Hence objectoriented programming provides a more powerful modeling tool than procedureoriented programming.
Octal number system: A number system with a base of 8. The octal digits range
from 0 to 7. It is commonly used as a shortcut notation for groups of three binary
Off-line: A device or system not directly under the control of a computer system.
Off-line data entry devices Input devices through which data is recorded on some
media (such as floppies or tapes) and then entered later into the computer from the
media for processing.
On-line: A device or system directly connected to and under the control of a
On-Line Analytical Processing (OLAP): A database architecture designed
specifically for effective data analysis.
On-line data entry devices: Input devices, which are connected directly to the
computer on which the entered data is processed.
On-Line Transaction Processing (OLTP): A database architecture designed
specifically for transaction processing.
Operand: The part of a machine level instruction, which tells the central processor
the location .of the data to be manipulated. Operating system: An integrated set of programs that controls the resources of a
computer system and provides its users with an interface or virtual machine that is
more convenient to use than the bare machine.
Operation code (op code): The part of a machine level instruction which tells the
central processor what has to be done.
Operation phase: The life-cycle phase during which the system constructed in the
development phase is used.
Optical bar-code reader: An input device that is able to interpret combinations of
marks (bars) that represent data.
Optical Character Recognition (OCR) device: An input device (a scanner)
equipped with a character recognition softw...
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- Spring '14