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Tuesday, December 06, 2016

Keys in DBMS

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KEY : - A key is a single attribute or combination of two or more attributes of an entity set that is used to identify one or more ins...

Database Terms

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ENTITIES : - Entities are the basic units used in modelling stones of concrete or abstract objects. All such items about which releva...

Process Scheduling

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Process Scheduling The act of determining which process in the ready state should be moved to the running state is known as Process Sched...

PROCESS CONTROL BLOCK

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PROCESS CONTROL BLOCK   Process Control Block (PCB, also called Task Controlling Block, process table, Task Struct, or Switchframe) is ...

Process and Process State

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What is a Process? A program in the execution is called a Process. Process is not the same as program. A process is more than a program ...
Monday, December 05, 2016

Difference Between Primary and Secondary Memory

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         Difference between Primary and Secondary Memory Primary Memory Secondary Memory These are semiconductor memories. ...

Secondary Memory

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Secondary Memory/Non Volatile Menory Secondary memory (or secondary storage) is the slowest and cheapest form of memory. It cannot be pro...

Primary Memory

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Primary Memory / Volatile Memory: Primary Memory also called as volatile memory because the memory can’t store the data permanently. Pr...

Memory (Computer)

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Memory (Computer) Computer memory is any physical device capable of storing information temporarily or permanently. For example, Random A...