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Showing posts with the label FLASH MEMORY ROM

MEMORY IN COMPUTER.

  MEMORY OF COMPUTER: DETAILED EXPLANATION INTRODUCTION MEMORY IN A COMPUTER IS THE MOST ESSENTIAL COMPONENT THAT STORES DATA, INSTRUCTIONS, AND INFORMATION TEMPORARILY OR PERMANENTLY. IT ACTS AS A BRIDGE BETWEEN THE CENTRAL PROCESSING UNIT (CPU) AND THE STORAGE DEVICES, ENSURING SMOOTH DATA PROCESSING AND RETRIEVAL. WITHOUT MEMORY, A COMPUTER CANNOT PERFORM ANY OPERATION. COMPUTER MEMORY IS BROADLY CATEGORIZED BASED ON ACCESS TIME, CAPACITY, COST, AND VOLATILITY . IT DETERMINES THE PERFORMANCE AND EFFICIENCY OF THE ENTIRE SYSTEM. TYPES OF COMPUTER MEMORY COMPUTER MEMORY IS MAINLY DIVIDED INTO PRIMARY MEMORY AND SECONDARY MEMORY , AND ALSO INCLUDES CACHE MEMORY AND VIRTUAL MEMORY AS SPECIAL TYPES. 1. PRIMARY MEMORY (MAIN MEMORY) PRIMARY MEMORY IS DIRECTLY ACCESSIBLE BY THE CPU. IT IS FAST BUT LIMITED IN SIZE AND VOLATILE IN NATURE, MEANING DATA IS LOST WHEN POWER IS TURNED OFF. CHARACTERISTICS: HIGH SPEED LIMITED STORAGE CAPACITY VOLATILE (T...

FLASH MEMORY - A SHORTNOTE

 FLASH MEMORY HELLO FRIENDS TODAY I AM GOING TO TELL YOU  SOMETHING ABOUT WHAT  I KNOW ABOUT A TOPIC KNOWN AS  VIRTUAL MEMORY, SO LETS BEGIN. VIRTUAL MEMORY IS A MEMORY MANAGEMENT CAPABILITY OF AN OPERAING SYSTEM THAT USES HARDWARE AND SOFTWARE TO ALLOW A COMPUTER TO COMPENSATE FOR PHYSICAL MEMORY SHORTAGES BY TEMPORARILY TRANSFERING DATA FROM RAM TO INACTIVE SPACE IN HARD DISK DRIVES TO FORM CONTIGOUS ADDRESESE THAT HOLD BOTH THE APPLICATION AND ITS DATA. A SYSTEM USING VIRTUAL MEMORY USES A SECTION OF HARD DISK DRIVE TO EMULATE RAM WITH VIRTUAL MEMORY A SYSTEM CAN LOAD LARGER PROGRAMS LIKE PUBG OR FREE FIRE RUNNING AT THE SAME TIME ALLOWING NO MORE RAM REQUISITE. WHILE COPYING VIRTUAL MEMORY INTO THE PHYSICAL MEMORY THE OS DIVIDES MEMORY INTO PAGE FILES WITH A FIXED NUMBER OF ADDRESSES. EACH PAGE IS STORE ON A DISK AND WHEN THE PAGE IS NEEDED THE OS COPIES IT FROM THE DISK TO THE RAM.  THIS IS CALLED A PAGE SWAPPING. SO LETS SEE HOW TO CONFIGURE A VIRTUAL MEMO...