Explain shell variables
Explain the shell variables?
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Shell variables are said to be the special variables, a name-value pair generated and maintained by the shell.
Explain the phenomenon of page fault?
Instruction set: The set of instructions which characterize a specific Central Processing Unit. The programs written in the instruction set of one type of CPU can’t usually be run on any other kind of CPU.
State the various security features within the UNIX?
HSB Color Model: A color model based on symbolizing a color as 3-components: hue, saturation and brightness. This is at times termed as the HSV color model - hue, saturation and value.
Instance variable: It is a non-static field of a class. Each and every individual object of a class has its own copy of this field. This is in contrary to a class variable that is shared by all instances of class. Instance variables are employed to mo
Timesharing system: It is an operating system which shares processor time among multiple processes by assigning each a time slice. Once a process's time slice has finished or expired, the other procedure is given a possibility to run.
Syntax error: It is an error detected by the compiler throughout its parsing of a program. The syntax errors generally result from mis-ordering symbols in statements and expressions. Missing curly semicolons and brackets are general illustrations of s
Message passing: We characterize the object interactions as message passing. The client object sends a message to a server object by invoking a technique from the server's class. Arguments might be passed with the message, and a outcome is returned by
Define the term Pixel: It is a `picture element' - usually a colored dot on a screen.
Behavior: It is the methods of a class which implement its behavior. A particular object's behavior is a mixture of the method definitions of its class and the present state of the object.
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