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COMPUTER HINDI NOTES PDF

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Computer Hindi Notes Pdf

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Basic Computer Knowledge in Hindi PDF(बेसिक कंप्यूटर ज्ञान PDF) Science And Technology (GK) Notes Download PDF In Hindi. What is Computer “Compute” Computer. Electronic Machine “Data”. Computer is an electronic machine, that process the input data according to the given. आपको इस Lucent Computer Book in Hindi PDF के माध्यम से वो जानकारी मिलेगी जो प्रतियोगी परीक्षाओं में अक्सर.

The seeming miles of wires that get tangled on your desk, the CD drive, the monitor are all hardware.

Software is a set of electronic instructions consisting of complex codes Programs that make the computer perform tasks.

Windows is a software, so is any other program that runs on your computer. While there are thousands of parts even in the smallest computers that make up its hardware, you are not required to know them all.

You only need to know about basic computer hardware. Basic computer hardware consists of the following parts: 1.

It performs all types of data processing operations, stores data, intermediate results and instructions program. It controls the operation of all parts of computer. A CPU has 3 components as listed below. The ALU thinks in bits i. It is made up of a group of memory locations built directly into the CPU called registers. These are used to hold the data binary information that are being processed by the current instruction.

C Memory Primary memory is memory that is part of the computer itself and necessary for its functioning. As soon as the machine is switched off, data is erased.

RAM is volatile. Volatile means that the data stored in memory is lost when we switch off the computer or if there is a power failure. There are different types of RAM available.

Some of them are described below. The term dynamic indicates that the memory must be constantly refreshed or it loses its contents. This type of memory is more economical. The term static is derived from the fact that it does not need to be refreshed like DRAM.

This type of memory is non-volatile. The information is stored permanently in such memories during manufacture.

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A ROM, stores such instructions that are required to start a computer. This operation is referred to as bootstrap. The different types of ROM are given below. The MROM cannot be programmed by the user. EPROM is erased by exposing it to ultra-violet light for a duration of up to 40 minutes.

It can be erased and reprogrammed about ten thousand times. Both erasing and programming take about 4 to 10 milliseconds.

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Secondary Storage External Storage Devices Floppy diskettes, hard disk, tapes and optical disks come under the category of external storage devices or ancillary storage devices. These devices are very sensitive to environmental conditions humidity and temperature as well as to external magnetic fields and need to be stored carefully.

Information on a floppy disk is recorded in the magnetized states of particles of iron oxides evenly placed upon concentric circles known as tracks. It contains a stack of metal platters, each coated with iron oxide, that spin on a spindle and the entire unit is encased in a sealed chamber. C Magnetic Tape This is plastic tape, usually made of Mylar that is coated with iron oxide, thereby enabling the introduction writing ; retention memory and reading of magnetically recorded information.

The best use of tape storage is for data that you do not use very often. New Releases. Add to Wishlist. A simple application "Computer Fundamental" is designed as a quick reference for the beginners who are learning basic of computes. The "Computer Fundamental" application is a way of knowing about basic concepts of computer.

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The main aim of this application "Computer Fundamental" is how to use the computers and their components. This application "Computer Fundamental" is used for General knowledge and also used for students in their syllabi.

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Computer Hindi Notes pdf file

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Computer General Knowledge 2018 Hindi PDF Download

Monochrome Monitor: Save Computer Awareness is tested in almost every exam. Secondary Storage External Storage Devices Floppy diskettes, hard disk, tapes and optical disks come under the category of external storage devices or ancillary storage devices.

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