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Basic Computer Book In Hindi

1 दिन पहले computer book in hindi: अगर आप computer hindi notes PDF Download करना चाहते है तोह निचे डाउनलोड पीडीऍफ़ के बटन पर. Computer Notes PDF Download कम्प्यूटर नोट्स Basic Computer Book In Hindi · Computer Questions and Answer (Computer MCQ). ल्यूसेंट कंप्यूटर | Lucent's Computer Free Hindi PDF Book · June 7, अमित गर्ग | Aao Computer Jane by Dr. Amit Garg Hindi PDF Book.

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Both erasing and programming take about 4 to 10 milliseconds. 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.

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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. If a peripheral device is disconnected, the computer will still be able to work; only functions performed by this peripheral device will not be available.

Here are the most used types of peripheral devices: A Keyboard The most common and very popular input device which helps in inputting data to the computer. It consists of keys that are capable of inputting alphabets, numbers and special characters. You can also navigate using the keyboard and perform shortcut functions.

B Mouse Mouse is the most popular pointing device and cursor-control device having a small palm size box with a round ball at its base which senses the movement of mouse and sends corresponding signals to CPU when the mouse buttons are pressed.

It forms images from tiny dots, called pixels that are arranged in a rectangular form. The sharpness of the image depends upon the number of pixels. D Printer Printer is an output device, which is used to print information on paper. Impact Printers: The impact printers print the characters by striking them on the ribbon which is then pressed on the paper.

Non-Impact Printers: Non-impact printers print the characters without using ribbon.

These printers print a complete page at a time so they are also called as Page Printers. Laser Printers, Inkjet Printers. E Joy Stick It is a device used to move cursor position on a monitor screen. F Scanner A scanner allows you to scan printed material and convert it into a file format that may be used within the PC. G Plotter A plotter is used to create high-quality visuals on paper.

A plotter gives a hard copy of the output. It draws pictures on a paper using a pen. It can be used to create presentation-charts, graphics, tables and high quality technical drawings. There are two types of plotter.

Drum Plotter: The paper is placed over the drum that rotates back and forth. A carriage holding one or more pens is mounted horizontally across the drum. The carriage with the pens moves horizontally over the paper.

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Each pen could be filled with different colours. This plotter has the ability to produce colour pictures. Flat Bed Plotter: In flat bed plotter, the paper does not move. The carriage holding the pens should provide all motions. Inkjet plotters can also produce large drawings with different colours. Liked these Basic Computer Hardware Notes? Read more Computer notes!

Data Representation 6. Computer Software 7.

Operating System and its types 8. Microsoft Windows 9. Microsoft Word Microsoft Excel Microsoft PowerPoint Microsoft Access Database Management System Tally Data Communication and Computer Network Internet Computer Security, Cyber Crimes and Laws Computer Language and its types Programming Language Data Structure SQL Basics and Normalization Software Engineering Compiler Design Digital Electronics Model Practice Set Computer Glossary.

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