Registration on logic learning platform now available .

registration is started please register your information for get a quick notification of logic learning platform .

The registration form is given in side bar of the home page. so,please complete your registration to get free notes , free videos, free mock test , etc .

Comments

partitioning (operatimg system ).

WHAT IS PARTITIONING ? Certain operating system use partitioned memory management to allow multiprogramming . • Partitioning means dividing main memory into various sections. • These section are called as partitions. • There are two types of partitions: 1) fixed partition . 2) variable partition. Fixed partition . • In this method partitions are fixed at the time of system generation . At this time , system manager has to declear partition time. • Fixed partition are also called static partition . On declearing fixed partition , the operating system create partition description table. • It reduces the uses the CPU utiliisation . • It reduces the degree of multiprogramming. . variable partition . In variable partition number of partition and their size are variable • They are not defined at the time of system generation . • These partition are created by operating systems...

12th HSC free notes of c++ language theory part 3

Object oriented programming • Object oriented programming is an approach that provides a way of modularizing programs by creating partitioned memory area for both data and function that can be used as templates for creating copies of such modules on demand . • In object oriented programming the program is designed around the data being operated upon rather than upon the operation themselves. • OOP allows to decompose a problem into a number of entities called object and then build data and function around these entity. • When program is executed the object interact by sending message to one another • Each object contains data and code to manipulate the data . Features of OOP : • Program are divided into number of object. • Data is hidden and cannot be accessed by external function • Object may communicate with each other through function • New data and function can be easily added wherever required. Object : • Object are the basic runtime entity in object oriented sy...

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...

Logic learning 02

Search This Blog