2011 ~ Computer tricks and Pranks

Power supply

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Printer

Printer is an output device. The most common method of producing human readable out put is using printers. Printed output is usually referred to as hard copy. Printers provide information in a permanent readable form. They produce printed output of results, programs and data. Printers are classified as follows: 1. Character printers – They prints one character of the text at a time. 2. Line printers - They prints one line of the text at a time. 3. Page printers - They prints one page of the text at a time. Above...

Operating Environment

i. Operating or Target Environment: The hardware that supports a language has a great impact on language design. Languages, as a mean to solve a problem, are part of the overall technology that is employed. The external environment supporting the execution of a program is termed its operating or target environment. In computing, an operating environment is an environment in which users run application software, whether by a command-line interface or a graphical user interface. An operating environment is usually not a full...

Difference between Magnetic and Optical Storage

Magnetic Storage a) Stores data in magnetic form. b) It is affected by magnetic field. c) It has high storage capacity. e) It doesn't use laser to read/write data. f) Magnetic storage devices are ; Hard disk , Floppy disk, Magnetic tape etc. Optical Storage a) Stores data optically & used laser to read/write. b) It is not affected by magnetic field. c) It has less storage than hard disk. e) Data accessing is high as compared to floppy. f) Optical storage devices are; CD-ROM,CD-R,CD-RW, DVD et...

Difference between LCD, LED, CRT

LCD a) LCD stands for Liquid Crystal Display which is a thin, flat display screen made up of any number of color or monochrome pixels arrayed in front of a light source or reflector. b) It is often used in electronic Devices because it uses very small amounts of electric power. LED a) LED stands for Light Emitting Diode which is a semiconductor diode that emits incoherent narrow- spectrum light when electrically biased in the forward direction of the p-n junction. This effect is a form of electroluminescence. b) It...

Impact of computer on society

Everyone knows that this is the age of computer and vast majority of people are using computer. Development of science and technology has direct effect on our daily life as well as in our social life. Computer technology has made communication possible from one part of the world to the other in seconds. They can see the transactions in one part of the world while staying in the other part. Computer development is one of the greatest scientific achievements of the 20 th century. Computers are used in various fields as well as...

History of Computer in Nepal

There is not a long history of computers in Nepal. Nepal hired some types of calculators and computers for it's census calculation. Following list shows it's history in Nepal.• In 2018 BS an electronic calculator called "Facit" was used for census.• In 2028 BS census IBM 1401 a second generation mainframe computer was used.• In 2031 BS a center for Electronic Data Processing ,Later renamed to National Computer Center(NCC),was established for national data processing and computer training.• In 2038 BS ICL 2950/10 a second generation...

Types of Computer

On the basis of working principle a) Analog Computer An analog computer (spelt analogue in British English) is a form of computer that uses continuous physical phenomena such as electrical, mechanical, or hydraulic quantities to model the problem being solved. 1. Thermometer 2. Speedometer 3. Petrol Pump Indicator 4. Multimeter b) Digital Computer A computer that performs calculations and logical operations with quantities represented as digits, usually in the binary number system. c) Hybrid Computer (Analog + Digital) A combination...

Photoshop - Creating Fire text

1) Make a new file 300x300. 2) Add a new layer and fill with a black background. Then select the type tool .Type your text and fill with white. 3) Deselect the text. Then rotate your text by choosing Edit > Transform > Rotate 90° CW.(This is to make the flames on top.If you want the flames on right side avoid this step.). 4) Next go to Filters > Stylize > Wind.Select the direction,From the left, if you want the flames to appear on the right side of the text. Choose the amount and size.(Here I've selected, Amount:...

Layers

Layers let you organize your work into distinct levels that can be edited and viewed as individual units. Every Photoshop CS4 document contains at least one layer. Creating multiple layers lets you easily control how your artwork is printed, displayed, and edited. You will use the Layers palette often while creating a document, so it is crucial to understand what it does and how to use it. A) Layer Visibility -The eye shows that the selected layer is visible. Click on or off to see or to hide a layer. B) Layer Locking Options...

Interface Layout of Photoshop cs4

Menu Bar If you look at the top of the screen you will see the Menu bar which contains all the main functions of Photoshop, such as File, Edit, Image, Layer, Select, Filter, View, Window, and Help. Tool Bar Most of the major tools are located in the Tool bar for easy access. The Image The image will appear in its own window once you open a file. Image Name The name of any image that you open will be at the top of the image window as shown above. Palettes Palettes contain functions that help you monitor and modify images. By...

Getting Started photoshop cs4

OPENING Begin by opening Adobe Photoshop CS4. On a PC, click Start > Programs > Adobe > Photoshop CS4, or click on the shortcut on the desktop. On a Mac, click Macintosh HD > Applications > Adobe Photoshop CS4 > Photoshop CS4 shown. SETTING UP THE DOCUMENT Setting up your document correctly from the start will make your job much easier as you work through your project. This will require some advanced planning. For example, if your final output will be a brochure, you may need to set up your document to be...

Adobe Photoshop CS4

Adobe Photoshop CS4 is a popular image editing software that provides a work environment consistent with Adobe Illustrator, Adobe InDesign, Adobe ImageReady, and other products in the Adobe Creative Suite. This tutorial is an introduction to using Adobe Photoshop. Here you will learn how to get started, how to use the interface, and how to modify images with basi...

Create Abstract Background In Photoshop

 Create New Image 1024x768 or How you want? With RGB Color, 72 resolution and transparent.  Press ‘D’ for default color.  Fiter>Renter>Clouds  Filter>Pixelate>Mezzotint  Mezzotint type :short stroke  Filter>Blur>Radial blur>zoom>Amount 80  Filter>distort>Twirl.  ‘Ctrl+J’ for duplicate the layer.  ‘Ctrl+T’ Right click on mouse >Flip Horizontal.  Blending> Lighten  Every layer>Press Ctrl+U  Check on coloriz...

Create A Electricity Text In Photoshop

 Create a new image 400x400 and 72 resolution with a transparent background.  Edit>Fill and choose black  Write Your text in white.  Select>resterize>resterize text.  Marge layer press ‘ctrl+shift+E’  Image>rotate canvas>900 CW  Filter>stylize>wind, make the direction “from the right”  Press ‘Ctrl+F’  Filter>stylize>wind, make the direction “from the left”  Press ‘ctrl+F’  Edit>Transform >900 CCW.  Filter>stylize>wind ,make the direction “from the right”  Again, Filter>stylize>wind...

Creating Pencil sketch of a photo in Photoshop

1) Open an image. 2) Create a copy of the background layer (Layer->Duplicate layer) 3) invert it (Image->Adjust->Invert). 4)Convert the image to Grayscale (Image->Mode->Grayscale) and choose not to flatten the image. 5) Double click the layer to open bending mode options palette. Set layer mode to "Color Dodge". This will at first make the layer look almost completely white. 6) Now, to bring out some pencil strokes apply the Gaussian blur-filter (Filter->Blur->Gaussian Blur) and set "Radius" to somewhere...

Adobe Photoshop CS

Photoshop is a powerful image editing software. It is resolution dependent and we can export Photoshop file into different format for e.g.: For video, Web, Print etc, we can create 2D, 3D graphics for web, also we can animate some graphics for web using Photoshop & Image Ready. The default file extension of Photoshop is "PSD". In Photoshop the most important thing is a layer. You can create as many layers as you need. To open layer press F7 or Go to Window > Layer. When you open Photoshop, you will see different Menus,...

IPO CYCLE:

Input Device:(Raw Data)mouse,Keyboard,scanner Input is the raw information. It is the collection of Letters, Numbers and Images etc. given to the computer to produce the result. Processing Device:(Invisible) CPU Process is the action taken on data as per given instruction. It is totally inner process of the computer system. Output:(Result):Monitor,Printer,Speaker Output is the final data given by computer after data processing, it is also called Result. We can save the result s for our future us...

How to Start and shutdown of computer

How to start the computer in windows mode?  Switch ON the Power Supply.  Switch ON the CPU.  Switch ON the Screen (Monitor).  Then, wait a just a minute, after then you will directly enter into the windows environment (Desktop). How to Shutdown (Off) the Computer? Before shutdown the Computer, you have to close all opened windows. Then,  Click on Start Button.  Click on Shutdown/Turn off computer. Then Computer asks you: What do you want the computer to do?  Choose 2nd option (Turn off).  Click on Yes. Then, Wait until...

Introduction of Special Keys:

~ = Tiled Key ! = Exclamation Mark @ = At the rate # = Hash $ = Dollar % = Percentage ^ = Carat & = And * = Asterisk or Star Mark ( ) = Parentheses - = Dash | = Vertical Mark or Pipeline { } = Middle bracket [ ] = Big Bracket “ ” = Double quote Mark (smart) ‘ ’ = Single quote Mark (smart) : = Colon ; = Semicolon _ = Underscore < > = Less than & greater than ? = Question Ma...

Hardware and Software:

Whenever we talk about computer, we visualize the physical parts of computer and non-physical parts like programs. A complete system can be studied under two headings: 1.Hardware: - The physical components of a computer system, which can be seen & touched, such as computer itself, its modules & the input & output devices & auxiliary devices are called hardware. It is just a mechanism of the computer. All the devices attached to the computer system like: Mouse, Keyboard, Monitor, CPU and Motherboard & Hard...

Fullform of Computer

C = Commonly O = Operating M = Machinery P = Particularly U = Used For T = Technology E = Education R = Resear...

What is Computer??

Computer is an electronic Device which can operate system file in systematically. Computer is an advance/modern electronic device(machine), which takes raw data as input from the user then processes these data as per given instruction then gives output(Result) & stores it for future use. It is a data processing machine, which can process any kind of numerical & non-numerical (Arithmetic...

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