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SECURITY FOR INPUT OUTPUT DEVICES

  PROTECTION FOR INPUT AND STORAGE DEVICES  THROUGH BITLOCKER DRIVE ENCRYPTION METHOD.   I    TODAYS DIGITAL AGE.  DATA IS THE NEW OIL.  SO DATA IS HIGHLY RECOMMENDED FOR PROTECTION.  JUST AS THE ELITE COMMUNITY OF COUNTRIES NEEDED PROTECTION SO DOES OUR COMPUTER STORAGE DEVICES NEEDS PROTECTION.  SO I AM GOING TO SHARE MY VIEWS ON PROTECTION OF DATA IN INPUT AS OUTPUT STORAGE DEVICE PROTECTION ALGORITHM KNOWN AS BITLOCKER DRIVE ENCRYPTION.    I WON’T BE EXPLAINING IT BUT I WILL SHOW YOU THE METHOD TO GET THE PROTECTION NEEDED FOR DATA IN OUTPUT AND INPUT STORAGE DEVICES.  SO LET US BEGIN… BITLOCKER DRIVE ENCRYPTION RUN à TYPE GPEDIT.MSC à   UNDER COMPUTER CONFIGURATION EXPAND ADMINISTRATIVE TEMPLATES à   EXPAND WINDOWS COMPONENTS à   SELECT BITLOCKER DRIVE ENCRYPTIONS à DOUBLE CLICK ON FIXED DATA DRIVE à DOUBLE CLICK ON ALLOW ACCESS TO BITLOCKER PROTECTED FIXED DATA DRIVES FROM EARLIER VERSION OF WINDOWS à   SELECT ENABLE à APPLY OK à   DOUBLE CLICK ON BA
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HOW TO SET UP AN IP ADDRESS?

  HOW TO SET AN IP ADDRESS TO A COMPUTER? IP ADDRESS IS KNOWN BY THE NAME INTERNET PROTOCOL ADDRESS.   IT IS LIKE A POSTAL ADDRESS OF THE COMPUTER ON THE INTERNET. IT IS THE ADDRESS NEEDED BY A COMPUTER TO FIND ANOTHER COMPUTER IN INTERNET.   LETS   START LEARNING!!     NOW LETS PUT OURSELVES IN THE TOPIC ABOUT HOW TO SET AN IP ADDRESS TO A COMPUTER HERE ARE THE   STEPS NEEDED TO GIVE IP ADDRESS TO THE COMPUTER…..   STEP I   GO TO RUN à TYPE ncpa.cpl à   RIGHT CLICK ON ETHERNET OR LOCAL AREA CONNECTION à PROPERTIES à SELECT INTERNET PROTOCOL VERSION 4 (TCP/IPV4) à PROPERTIES   à USE THE FOLLOWING IP ADDRESS à   TYPE THE IP ADDRESS   à CLICK ON SUBNET MASK (THE SUBNET MASK WILL COME AUTOMATICALLY) à OK à CLOSE   GO TO RUN à CMD à PING 10.0.0.2   STEP II   TURN OFF WINDOWS FIREWALL GO TO RUN à WRITE firewall.cpl IN RUN à   CLICK ON TURN WINDOWS FIREWALL ON OR OF à   SELECT TURN OFF FIREWALL TWO TIMES   STEP III   RIGHT CLICK ON THIS PC
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HOW TO CONFIGURE VIRTUAL MEMORY IN WINDOWS OPERATING SYSTEM?

  HOW TO CONFIGURE VIRTUAL MEMORY IN WINDOWS OPERATING SYSTEM? 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 ADDRESESES THAT HOLD BOTH THE APPLICATION AND ITS DATA.  NOW LET US SEE HOW TO CONFIGURE VIRTUAL MEMORY? RIGHT CLICK ON MY COMPUTER --> THIS PC -->PROPERTIES -->ADVANCE SYSTEM SETTING --> PERFORMANCE SETTING -->ADVANCED --> VIRTUAL MEMORY -->CHANGE --> UNCHECK AUTOMATICALLY MANAGE PAGING FILE SIZE FOR ALL DRIVES --> SELECT CUSTOM SIZE  --> TYPE PAGE FILE SIZE IN MEGA BYTES -->  CLICK ON SET ---> OK-->OK--> OK --> RESTART THE SYSTEM.
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FLASH MEMORY INSIGHTS

  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 ADDRESESES 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 VIRT
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HARD DISK NOT DETECTED ERROR OR WHAT?

 HARD DISK  NOT DETECTED ERROR OR WHAT? FRIENDS TODAY I AM GOING TO TELL YOU SOMETHING ABOUT AN ERROR THAT OCCURS MOSTLY IN COMPUTERS, THAT IS HARD DISK NOT DETECTED.   SO LET’S BEGIN. THERE ARE THREE ACTION YOU NEED TO TAKE TO THIS PROBLEM SO LET’S BEGIN. STEP 1   CHECK WHETHER THE POWER CABLE AND DATA CABLE OF THE HARD DISK IS PROPERLY ATTACHED OR NOT.  YOU CAN ALSO CHANGE THE PATA AND SATA DATACABLE.   STEP2 CHECK THE SMPS (SWITCH MODE POWER SUPPLY) YELLOW AND RED WIRE VOLTAGE LEVEL.  IF THE VOLTAGE LEVEL IS IMPROPER REPLACE THE SMPS. STEP3 ATTACH THE HARD DISK TO ANOTHER MACHINE.  CHECK IF IT IS DETECTED OR NOT IF THE HARD DISK IS DETECTED IN THE SECOND MACHINE, REPAIR THE MOTHERBOARD.  IF THE HARD DISK IS NOT DETECTED IN SECOND MACHINE REPAIR OR REPLACE THE HARD DISK.
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WHAT TO DO WHEN A COMPUTER FREQUENTLY RESTARTS?

  COMPUTER FREQUENTLY RESTARTS WHAT TO DO WHEN COMPUTER FREQUENTLY RESTARTS.  WHAT ARE THE REASONS FOR ITS PERFORMANCE DEGRADATION?  LET US SEE! CAUSE NO 1 CPU OVERHEAT SOLUTION --> CHECK THE CPU TEMPERATURE FROM BIOS.  IF THE CPU TEMPERATURE IS HIGH, EJECT THE CPU FAN AND CLEAN IT PROPERLY WITH COMPRESSED AIR AND BRUSH.   APPLY THE RIGHT COOLING PASTE WITH A PIECE OF CLOTH. NOW APPLY GOOD QUALITY COOLING PASTE WITH A THERMAL COMPOUND OVER THE PROCESSOR.  ATTACH THE HEAT SINK AND FAN AND CHECK THE TEMPERATURE AGAIN.  IF THE CPU FAN SPEED IS LOW AFTER CLEANING , CLEAN THE FAN WITH ISOPROPHYL ALCOHOL, DIESEL AND WHITE PETROL. NOW ATTACH THE FAN AGAIN CHECK THE FAN SPEED IF IT IS SAME AS BEFORE REPLACE THE FAN. CAUSE NO 2 VIRUS --> IF THE PROBLEM IS RELATED TO VIRUS.  INSTALL A GOOD QUALITY ANTIVIRUS SOFTWARE (AVAST, AVG AND QUICK HEAL)ETC AND SCAN THE SYSTEM. CAUSE NO 3 RECENTLY INSTALLED A SOFTWARE, HARDWARE, DEVICE DRIVER.  DRIVER UPDATE SOLUTION :- ASK THE USER FOR RECENTLY INST
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SUMMARY OF INKJET PRINTER

INKJET PRINTERS THE MOST POPULAR TYPE OF PRINTER IN TODAYS MARKET IS INKJET PRINTER.  IT USES A RESERVIOR OF INK, A PUMP AND A NOZZLE.  IT WORKS EFFECIENTLY AND T IS THE CHEAPEST PRINTER IN THE MARKET STARTING 1800 BUT THE PRINTER COST IS HIGHCOMPARING TO OTHERS TYPE OF PRINTER. IT SPRAYS THE LIQUID INK ON TO A PAPER ACCORDING TO THE PATTERN OF PRINTED   DOCUMENTS.  IT SUPPORTS VERY HIGH DEFINATION OF THE DOCUMENT TYPES. PARTS OF INKJET PRINTER :- INKJET PRINTER ARE SIMPLE DEVICE.  THEY CONTAINS VERY FEW PARTS.  THEY ARE INEXPENSIVE AND EASILY AVAILABLE IN THE MARKET.THE PARTS CAN BE DIVIDED INTO THE FOLLOWING CATEGORIES  1) PRINT HEAD OF INK CARTRIDGE-->  IT CONTAINS LIQUID INK AND TWO HUNDRED TINY NOZZLES TO SPRAY THE INK IN SMALL DROPLETS. MANY TIMES A PRINTER MAYCONTAIN A RESERVOIR OF INK.  MOST COMMON COLOURS ARE USED INTO SEPARATE CARTIDGE ONE FOR BLACK AND ANOTHER ONE FOR CYAN, MAGENTA AND YELLOW.  THERE ARE TWO METHODS OF SPRAYING THE INK. • THERMAL BUBBLE --> IT IS
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