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Free notes of the operating system some imp questions

 1. ALU  2. STACK POINTER 3. PROGRAM COUNTER 4. INSTRUCTION REGISTER AND DECODER ALU ( ARITHMATIC AND LOGIC UNIT ) It is 8 bit unit  In this arithmetic and logical operation are carried out . ALU contain the binary adder to perform addition substracion by 2’s complement method Data is supplied by memory devices and input ouput devices The result is typically stored in the accumulator. STACK POINTER:- Stack poiointer is a 16 bit register which contain the address of top of stack With the help of incrementer and decrementer stack pointer perform their work The stack pointer is incremented when data is push  The stack pointer is decrementd when data is pop. INSTRUCTION REGISTER AND DECODER :- During the instruction fetch, the first 8 bit of instruction is transfer to the 8 bit instruction register The content of instruction register are available to the instruction decoder The output of decoder get by timing signals, ALU & data buffer. PROGRAM COUNTER:- Program coun...

Free notes of P block nitrogen compounds family .

The elements of this nitrogen group is collectively called  PNICOGENS and their compounds are PNICONIDES.                                  Nitrogen is the most aboundant gas in atmosphere.                                                               Phosphorus is most reactive elements in these group and its colour is yellow ,these form is more reactive form of phosphorus. Which always kept under the water.                  General electronic configuration :- ns2,np3.                In these group the elements have np3 which is outermost orbit and have exactly halffilled so these elements have fairly stability and hence these are inert elements. Eg . N is b...

Free notes of Formulae sheet of fluid mechanics and surface Tension .

                                                                     

Free notes of Some important laws and its statements of physics class 12th

 Laws:- Newton law of gravitation : Every planets of matter attract each other particles of matter with a force which directly proportional to the product of their masses and inversely proportional to the distance between them.    Kepler s laws:- 1) first law :- all planets revolves around the sun in elliptical orbit with the sun at one focus of the orbit.                                                                                          2) second law:- the radius vector drawn from the sun to the planet swept equal area in equal interval of time.                                                          ...

Free notes of JEE Advance 2021 (chemistry Important reactions .)

Chemistry Important reactions. (Advance level)                     

Free notes Operating system 12th HSC windows 98

  MAIN FEATURES OF WINDOWS 98 ➢Easier to use : ➢Windows 98 is a single user multitasking operating system  ➢Searching is easy in this os. ➢A file can be opened by a single click ➢It allows us to use multiple monitor with single computer ➢New hardware can be easily installed. MAIN FEATURES  Faster : • Windows and program open faster than in windows 95 • The computer speed and efficiency can be easily improved by single maintainance. True web integration : • It can be easily connected to internet • Web pages can be viewed in any window • Internet conferances can be arranged

Free notes of Polymers short revision part 1

 Polymers: The fibres have strong hydrogen bond.             Examples of elastomers :- buna-s , buna - N , neoprene.                                                                   Examples of the fibres:-polyamide ( nylon 6,6) , polyester ( terelyne).                                     Concept of thermoplastic:- which substance which is soft on heating and hardening on cooling.                                                                     Examples of thermoplastic are polythene , polystyrene , polyvinyl ....

Free notes of Biomolecules short revision part 2

  Biomolecules part 2. DNA has bases like adenine , gunine , cytosine , thymine.                                                  RNA has bases like adenine, gunine , cytosine , urasil.                                                        Adenine have hydrogen bond with thymine and cytosine have hydrogen bond with gunine.                                                                       D- fructose , D - manose ,D- glucose , form a same osazone product .                        ...

Free notes of Biomolecules short revision part 1

Biomolecules Polysaccharide are not sweet in taste.               All monosaccharides are reducing sugar.         Monosaccharides are starting from carbon number 3.                                                                Starch contain amylose and amylopectin amylose contain bonding between c1 -c4 and amylopectin has c1-c6 bonding in their structure.                                                                 Monomers: a)Lactose : 1) beta -D galactose 2)beta - D glucose.                                   ...

12th topicfor 2020 and 2021 batch HTML table part 3 free notes

  Html Table  ✓ A table can be created using <table></table> ✓ A table consists of rows and column  ✓ The row is to be define 1 st and then cells or column inserted into row  from left to right . ✓ For creating row <tr></tr> tag is used ✓ For table data <td> </td>tag is used ✓ For table heading i.e. row heading <th></th> tag is used. Basic table structure <table> <tr> <td>cs academy </td> <td>html</td> </tr> <tr> <td>.data structure</td> <td>operating system</td> </tr> </table> Important tags  ▪ <img src=“ ”> : use to add images on our web page. ▪ <a href=“ ”> use for hypertext link , called as anchor tag.. ▪ <sup></sup>. :use to show text in super script for 1st ▪ <sub></sub> : use to show text in subscript form. ▪ <strike></strike> : text have line drawn throught the middle ...