computer_knowlege4_you

Whatever we write on the computer is written in ASCII, every computer user can operate the computer by creating code based on binary system for digits, letters and symbols. But its codes will only apply to programs and commands by that. This allows users of the computer to not exchange information unless they are familiar with the code signals used by each other. In order to facilitate the exchange of information, a standard code has been prepared in America which is now recognized all over the world.It is known as ASCII . In this, every digit, letter or symbol is shown with 8 bits only 0 and 1 numbers are written in these 8 places. Bit- A bit, that is, a binary digit, is the smallest unit of computer memory. It displays a binary digit 0 or 1 in memory. It is a short form of binary digit. Byte- It is the standard unit of computer memory. Every letter, number or special symbol pressed from the keyboard is stored in the ASCII Code in computer memory. Each ASCII Code is o

Introduction to C Language Today, we are working on computer or mobile in the software or application, language is behind all this and in these languages, C language occupies an important place. Many language, operating system, games have been created by C language. Before introducing C Language, we need to know about the language. What is a language? Language is the medium of communication between two or more persons. Through language, a person can exchange ideas among themselves. A computer is an electronic machine that has no language of its own. The computer required a language to follow our instructions, so a language was created on the basis of the electrical value in the computer. There are generally three types of computer language.      Low-level language     Assembly language     High-level language Low-Level Language: This language is also called machine language, only 0,1 or binary code is used in this language. This language requires hardware in

The type of data that can be kept in a variable in a programming language is called data type . There are many types of data types such as integer, character, string, real etc. which are kept in a variable in any programming language. All these types are known as data types. When we declare a variable during programming in the normal sense, then you have to tell the compiler what type of data you want to store in the variable, the compiler provides that much memory from the computer memory. With the ability to divide data into different types of language, you can easily work with complex programs. To know the difference between different types of data There are two reasons which are as follows -     The compiler, which translates the program into object code (as 0 and 1), can use the appropriate internal representation for each data type.     While designing a program, programmers can use the correct operator to operate on data of every type. Basic Data types C Language suppor

OSI MODEL  What is the OSI model ? The full name of the OSI model is Open Systems Interconnection, developed in 1978 by ISO (Internationa l Standard Organization ) and the model consists of 7 layers. The OSI model is a reference model for communication between two users in a network. Each layer of this model does not depend on the other layer but there is a transmission of data from one layer to another. The OSI model describes how to send and receive data or information in a network. All layers of the OSI model have their own different functions so that data can be easily accessed from one system to another. The OSI model also describes how network hardware and software function as layers with each other. Layers of OSI MODEL OSI model has the following 7 layers                           layers in OSI model PHYSICAL LAYER The physical layer is the lowest layer in the OSI model . This layer is responsible for physical and electrical connections such

DEADLOCK what is deadlock ? Deadlock is a situation in which two computer processes share only one resource, due to which no process can access the resource. That is, a deadlock is a condition in which two or more processes fight  for only one resource, due to which no one is able to access the resource. For example, suppose there are two friends and both want to play computer games, due to which both fight. One has a remote control and the other has a cd of games.  Due to which neither of the two friends are able to play but neither of them is ready to cooperate. This condition is called deadlock . According to the picture we have two processes A and B and two resources r1 and r2. It contains resource r1 that is allocated with process A, and resource r2 that is allocated with process B. But resource r2 is required to complete the process so it requests r2, but r2 is already allocated with B. Similarly process B requires r1 to complete its execution, but

 MICROPROCESSOR                                          The microprocessor is a clock driven ,programmable,register based device.                                                   t he microprocessor reads the data i.e.binary instruction from the memory .it accepts this binary data as input and process the data according to the instructions and computes the result as output.         Any such machine that does some process (implementation, process) is called processor. The CPU is a very complex (complex) set of Electronic Circuit that executes the program Instruction collected. Microprocessor is an important part of PC (Personal Computer) that processes data. CPU stands for Central Processing Unit. The microprocessor is called the CPU that fits on top of a microchip and is made of microchip silicon which is equipped with millions of transistors and other components very well. There is a very complected switching circuit inside it, which executes the instructions very fas