The document discusses processor and memory hierarchy. It defines memory hierarchy as the organization of memory systems in a computer according to speed and size. Faster but smaller memory like registers and cache are closer to the processor, while larger but slower memory like main memory, disks, and tapes are further from the processor. Previously, computers were designed without memory hierarchy, which caused performance issues due to the large speed differences between processor and main memory. To improve performance, computer systems adopted a memory hierarchy model that organizes different types of memory based on their access times and capacities.

1. NADAR SARASWATHI COLLEGE OF ARTS
AND SCIENCE
DEPARTMENT OF INFORMATION
TECHNOLOGY
NAME : P.RITHIKA
TOPIC : PROCESSOR AND
MEMORY HIERARCHY
CLASS : I-M.SC(IT)

2. PROCESSORS :
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3. WHAT IS MEANT BY MEMORY HIERARCHY ?
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4. MEMORY HIERARCHY IN COMPUTER
ARCHITECTURE ?
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5. PRIMARY MEMORY :
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6. SECONDARY MEMORY :
•

7. CHARACTER OF MEMORY HIERARCHY :
PERFORMANCE:
PREVIOUSLY, THE DESIGNING OF A COMPUTER SYSTEM WAS DONE WITHOUT MEMORY
HIERARCHY, AND THE SPEED GAP AMONG THE MAIN MEMORY AS WELL AS THE CPU
REGISTERS ENHANCES BECAUSE OF THE HUGE DISPARITY IN ACCESS TIME, WHICH WILL
CAUSE THE LOWER PERFORMANCE OF THE SYSTEM. SO, THE ENHANCEMENT WAS
MANDATORY. THE ENHANCEMENT OF THIS WAS DESIGNED IN THE MEMORY HIERARCHY
MODEL DUE TO THE SYSTEM’S PERFORMANCE INCREASE.

8. ABILITY :
• THE ABILITY OF THE MEMORY HIERARCHY IS THE TOTAL AMOUNT OF
DATA THE MEMORY CAN STORE. BECAUSE WHENEVER WE SHIFT
FROM TOP TO BOTTOM INSIDE THE MEMORY HIERARCHY, THEN THE
CAPACITY WILL INCREASE.

9. MEMORY HIERARCHY DESIGN :
• 1.REGISTER
• 2.CACHE MEMORY
• 3.MAIN MEMORY
• 4.MAGNETIC DISKS
• 5.MAGENTIC TAPE

10. THANK YOU☺️