A cache of database connections maintained in the database’s memory so that the connections can be reused when the database receives future requests for data.
Connection pools are used to enhance the performance of executing commands on a database. Opening and maintaining a database connection for each user, especially requests made to a dynamic database-driven Web application, is costly and wastes resources. In connection pooling, after a connection is created, it is placed in the pool and it is used over again so that a new connection does not have to be established. If all the connections are being used, a new connection is made and is added to the pool. Connection pooling also cuts down on the amount of time a user must wait to establish a connection to the database.
Refers to network protocols in which a host can send a message without establishing a connection with the recipient. That is, the host simply puts the message onto the network with the destination address and hopes that it arrives. Examples of connectionless protocols include Ethernet, IPX, and UDP. In contrast, connection-oriented protocols require a channel […]
- connectionless service
Abbreviated as COS, connectionless service is one of two techniques used in data communications to transfer data at the Transport Layer (Layer 4). A connectionless service does not require a session connection between sender and receiver; the sender starts sending datagrams to the destination. In contrast with a connection-oriented service, this is less reliable but […]
A computer buzzword that refers to a program or device’s ability to link with other programs and devices. For example, a program that can import data from a wide variety of other programs and can export data in many different formats is said to have good connectivity. On the other hand, computers that have difficulty […]
)The part of a cable that plugs into a port or interface to connect one device to another. Most connectors are either male (containing one or more exposed pins) or female (containing holes in which the male connector can be inserted).
(1) The combination of display monitor and keyboard (or other device that allows input). Another term for console is terminal. The term console usually refers to a terminal attached to a minicomputer or mainframe and used to monitor the status of the system. (2) Another term for monitor or display screen. (3) A bank of […]