Source and listener
What do you mean by the term source and listener?
Expert
The source is an object which produces an event. This takes place when the internal state of that object changes in a certain manner. A listener is an object which is notified whenever an event takes place. It consists of two major requirements. First, it should have been registered with a source to receive the notifications regarding specific event. Second, it should implement essential methods to receive and process such notifications.
Explain different types of buffering which is supported by the UNIX?
First in, first out: It is FIFO semantics of the queue data structure. Items are eliminated in the order in which they arrived in the queue; therefore older items are always eliminated before newer ones.
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What are the examples of microkernel?
Modem: It is a modulator-demodulator. A hardware device employed to connect a digital computer to an analogue telephone network by making analogue signals into digital signals, and vice-versa.
What are the good examples of XHTML elements along with contents?
State the term dispatcher.
Finalization: Instantly before an object is garbage collected, its finalize method is called. This offers it the opportunity to free any resources it may be holding on to.
Control structure: A statement which affects the flow of control in a method. The typical control structures are if statements and loops.
Central Processing Unit: The Central Processing Unit (that is, CPU) is the heart of a computer as it is the portion that includes the computer's capability to follow instructions. Each kind of CPU has its own instruction set.
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