Q. What is RAM? Differentiate between SRAM and DRAM.

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GK SIR
Mar 25, 2023 06:13 PM 0 Answers Fundamental
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Random Access Memory (RAM) is primary memory of computer. It holds operating system, application program and data currently being used. It is the memory directly accessible by CPU. It is volatile in nature as data that reside in RAM gets lost if power supply is off. RAM can be called with different names, user memory, working memory read/write memory, temporary memory, internal memory etc.

Differences between SRAM (Static RAM) and DRAM (Dynamic RAM)

Base of difference SRAM DRAM
Refresh RAM that does not need to berefreshed RAM that needs to be refreshed
Access time/ Speed Lower access time and faster in speed Higher access time and slower in speed
Cost Costlier than DRAM Less costly than SRAM
Size Smaller Larger
Power consumption Consumes less power Consumes more power
Components Made up of transistors Made up of capacitors
Uses Used in cache memory Used as main memory
Working principle Works on the principle of changingthe direction of current Works on the principle of holding electriccharges
Physical placement Motherboard  
Physical Placement Between CPU and main memory On motherboard

 

Random Access Memory (RAM) कम्प्युटरको प्राथमिक तथा आधारभूत मेमोरी मानिन्छ । यसले अपरेटिङ सिस्टम, application program का साथै तत्काल प्रयोगमा रहेको डाटालाई भण्डार गर्ने कार्य गर्दछ । यो मेमोरी सिपियुको प्रत्यक्ष पहुँचमा हुन्छ । विद्युतको प्रवाह रहुन्जेल मात्र यसममा डाटा रहने भएकाले यसलाई volatile मेमोरी मानिन्छ । साथै यसलाई युजर मेमोरी, कार्यशील मेमोरी (Working Memory), Read/Write memory, , अस्थायी मेमोरी, आन्तरिक मेमोरी लगायतका नामबाट चिनिन्छ ।

SRAM (Static RAM) and DRAM (Dynamic RAM) बीच भिन्नता

भिन्नताका आधार SRAM DRAM
Refresh रिफ्रेस हुन आवश्यक हुन्न निश्चित अवधिमा रिफ्रेस हुनुपर्छ
गति

 

छिटो हुन्छ र काम गर्न थोरै समय लगाउँछ ढिलो हुन्छ र काम गर्न धेरै समय लगाउँछ
मूल्य DRAM भन्दा बढी हुन्छ SRAM भन्दा कम हुन्छ
आकार र क्षमता सानो तथा कम हुन्छ ठूलो र बढी हुन्छ
विद्युत खपत कम विद्युत खपत गर्छ बढी विद्युत खपत गर्छ
तत्त्वहरु Transistor बाट बन्छ Capacitor बाट बन्छ
उपयोग Cache memory मा प्रयोग गरिन्छ Main memory को रूपमा प्रयोग गरिन्छ
कामको प्रकृति

 

विद्युत प्रवाहको दिशा परिवर्तनको सिद्धान्तमा कामगर्छ विद्युत प्रवाहलाई hold गरी राख्ने सिद्धान्तकोआधारमा काम गर्छ
स्थान CPU र main memory को बीचमा रहन्छ मदरबोर्डमा रहन्छ

 

 

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