1. What Are Modal Verbs?

2.Multimedia Hardware
Most of the computers now-a-days come equipped with the hardware components required to develop/view multimedia applications. Following are the various categories in which we can define the various types of hardwares required for multimedia applications.

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  ProcessorThe heart of any multimedia computer is its processor. Today Core 15 or higher processor is recommended for a multimedia computer.
  
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    CPU is considered as the brain of the computer.
    
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    CPU performs all types of data processing operations.
    
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    It stores data, intermediate result and instructions (program).
    
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    It controls the operations of all parts of computer.
    

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  Memory and Storage Devices - You need memory for storing various files used during production, original audio and video clips, edited pieces and final mined pieces. You also need memory for backup of your project files.
  

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  Primary Memory- Primary memory holds only those data and instructions on which computer is currently working. It has limited capacity and data gets lost when power is switched off. It is generally made up of semiconductor device. These memories are not as fast as registers. The data and instructions required to be processed earlier reside in main memory. It is divided into two subcategories RAM and ROM.
  
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  Flash Memory- Cache memory is a very high speed semiconductor memory, which can speed up CPU. It acts as a buffer between the CPU and main memory. It is used to hold those parts of data and program which are most frequently used by CPU. The parts of data and programs are transferred from disk to cache memory by operating system, from where CPU can access them.
  
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  Secondary Memory: This type of memory is also known as external memory or non-volatile. It is slower than main memory. These are used for storing Data/Information permanently. CPU directly does not access these memories; instead they are accessed via input-output routines. Contents of secondary memories are first transferred to main memory and then CPU can access it. For example, disk, CD-ROM, DVD, etc.
  

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