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Below is an essay on "Comp Org" from Anti Essays, your source for research papers, essays, and term paper examples.

1(a).Describe the von Neumann programmable machine model
Von Neumann architecture is a design model for a stored program digital computer that uses a  
central Processing unit (C.P.U.) and a single separate   storage structure -‘memory’   to   hold both
instructions and data. The   central processing unit   comprises of   control unit (C.U.) and
arithmetic logic unit (A.L.U.)The A.L.U. operates on binary data while the C.U. interprets
instructions from the memory and handlesInput-output operations. Data and instructions are
stored in the same read write memory.

(b).short comparative notes on ISA and PCI bus specifications
                  ISA                                                                                                                     PCI
  * Has an 8mhz clock rate                                                         Has a clock rate of 33 or 66Mhz
  * Has a maximum data rate   of 8mbps                                 Has a data rate of 132 Mbps                
  * Has a relatively large slot than PCI                                       Has a relatively shorter slot
  * Has a bus width of 8 or 16 bits                                             Has a bus width of 64 bits

2(a).internal organization of the hard disc storage medium
A hard disc consists of one or more circular platter which either or both surfaces are coated with
a Magnetic   substance for recording data. Each surface has a read-write head that examines or
alters the recorded data. Each platter is divided into thin concentric bands known as tracks. The
tracks are further divided into sectors, which are the smallest physical storage unit on a disc. A
group of tracks with same track number but on different platters are known as a cylinder.
(b).hierarchical memory organization
In order to achieve the best performance the memory has to keep up with the processor  
speeds.Fast, powerful CPUs need quick and easy access to large...

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