COMPUTER TECH STUDY

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Computer applications

Computer applications - application of computers Data processing - A computer is used to perform large and large data processing and to generate information. This makes it very easy to collect, analyze, and retrieve data. Education - The picture of modern computer education has changed. With the medium of the Internet, we can now receive information on any subject in just a few moments. Schools and colleges have also been connected to the internet and many places. However, the focus is on the intelligent class, which is only possible due to the computer Bank - The use of computers has revolutionized in the banking sector, the old books and registers have been replaced by computers. Most bank functions are performed using computers, such as withdrawing money and deposits. There are even computer-controlled machines for counting money Communication - 4G Internet is used by children today. Computer technology has made it possible to use the Internet in communications, and

computer memory basics

computer memory What is computer memory? The CPU is called the brain of a computer, but while the human brain does a lot of work and protects our memories, the CPU only does arithmetic and logical calculations. Processes input data, process data cannot be protected because process data must now be stored in a safe place so that this task can be performed using computer memory (computer memory). Computer memory is divided into many small parts that we call cells. Each cell has a unique address or path. Whenever you save or save a file on a computer, it is saved in a cell - There are two types of computer memory : Variable - It is also called primary storage, also called primary storage. It is in direct contact with the CPU and its data and instructions are used quickly and directly by the CPU. This is called a variable memory because this memory cannot store any data permanently. Example - RAM Non-volatile - This is known as secondary storage. It is used to permanently stor

Computer hardware basics

Computer hardware structure Computer hardware basics The following important parts of a computer are: - • Monitor or LCD. • keyboard • Mousse • CENTRAL PROCESSOR • UPS. Monitor or LCD: - When used, all programs of the computer are displayed. It is an output device. Keyboards: - It is used to enter a computer, it is an input device, we can only operate the computer via the keyboard. Mousse: - Mousse simplifies the use of computers because it is both a remote device and an input device. CPU (Central Processing Unit): - It is an important part of the computer, all of our data is stored, all parts of the computer are CPU. Is connected to Click Learn via the internal parts of the CPU. UPS (Anitrap Power Supply): - This hardware or machine prevents the computer from being powered down directly, making all of our data secure. All of this hardware is divided into two parts - Output device Input device

basic Computer architecture

Computer architecture 1- I nput unit Input units are the hardware parts of a computer that can be used to enter data into the computer. They use input devices such as keyboards, mice, etc. for input and the computer via software. Or instruct it to be called I / O devices 2- Central unit The central unit processes the input data. For this purpose, both the central processing unit and the computing unit carry out an arithmetic calculation and a logical calculation and process the data. The CPU is called the brain of the computer. 3- Memory Memory is the part of a computer that stores user input and process data. It has two types of primary and second data, e.g. B. RAM and hard drive. 4- Output unit Based on the command you specified, you receive the processed information from the output computer that is received by your output device or output device. The best example of an Out device is your computer monitor. It's called I / O devices.

limitation of computer system

Computer limitations - Lack of intelligence - A computer is a machine. It does not have the same intelligence as a human, it only follows the instructions of the user, in any case the computer does not work less than the instructions. Lack of shared scene - It is also important to know that the computer never makes mistakes, but if the user does something wrong, it does not get the normal meaning, that is, if you did not tell the computer if "Seema is a girl", then she will look at it by default, she doesn’t know the difference in name, computer is not an intelligent machine, it can identify neither right nor wrong. Dependence on electricity - A computer needs electricity to function. Without electricity, a computer is nothing more than a metal box. Update and Update - A computer is a computer that needs to be updated and updated from time to time. If this is not done, the computer may not work properly Virus threat - A computer is always vulnerable to virus

characteristics of computers

Specialty of computers - First function of the computer - speed While you need a little time to do a small calculation, the computer can do many calculations in less than a second. This speed is provided by the processor. The speed of the computer is measured in Hertz, with the computer working. The intensity is measured per second, per millisecond, per second and nanosecond. The second characteristic of a computer - accuracy. Working properly means that good work is done with complete accuracy. This is another feature of the computer. The computer never makes mistakes. The computer always gives the correct result because the computer is not created with a program that we have created. Performs a task only following the instructions given. If the result given by the computer is wrong, the program will run In cannot be errors produced by human The third characteristic of a computer - automation . If the computer receives a later instruction, it continues to work autom