All questions on Computing

give an example of a open question

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Answers

It depends if you're referring to science and mathematics or to more general situations. In science and mathematics, an open problem or an open question is a known problem that can be accurately stated, and has not yet been solved (no solution for it is known). More generally an open question is one where the form of the question does not suggest the answer and requires the person being questioned to provide the answer. E.g. What did you do yesterday? This question warrants a fairly long response and the individual has more choice as to what he or she says. This is opposed to a closed question which can be answered with either a single word or a short phrase. E.g. how old are you?

chloe

10 February 2011

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What is Cyberspace and its advantages and disadvantages

I need as much information to make a speech

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What does HTML stand for and do?

Hypertext Markup Language

As you can probably guess from the title, HTML stands for Hypertext Markup Language and is a language used by web browsers to interpret and represent text, images, videos, audio and other mediums for people on web pages. HTML defines the structure of a website while other technologies their appearance (CSS) and behaviour (JavaScript). "Hypertext" describes the links between pages of content on the web that you can access immediately by clicking on said link. "Markup" refers to the method by which text, images, and other content is annotated to then be displayed. Examples of the these markup elemetns include <head>, <title>, <body>, <header>, <footer>, <article>, <section>, <p>, <video>, <ul>, <ol>, <li> and many more.

What is HTML Used For?

HTML was first developed by physicist Tim Berners-Lee at CERN, the European Organization for Nuclear Research in 1990 when looking for a way that researchers could share documents with each other. This was the foundation of the World Wide Web. HTML allows people to create and design web pages using elements such as paragraphs, headings, links, quotes, images etc. It is not a programming language, so doesn't have a dynamic functionality, rather it helps to organize and format a page. It uses simple coding to denote how each part of the page should look. For example, you could create a paragraph by placing the relevant text within 2 tags <p> and </p>. HTML is now an official web standard which is monitored and developed by the World Wide Web Consortium (W3C

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Importance of HTML

Why is HTML important?

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What's the importance of ICT in primary schools curriculum?

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What is the difference between hardware and software?

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what is the difference between a flat- file and a relational database

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what is margin of safety~?

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What is a formula

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was is exel

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Simple programming problem #1

Averages Make a program that asks the user for a series of numbers until they either want to output the average or quit the program. Extensions: 1. Expand the program to print the median and mode averages also 2. Include options so that if the user wants to, they can save their list of numbers to a text file and read them back out later on.

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Java Assignment

Hi. I am stuck on this question. Any help will be appreciated. The overall aim of this assignment is to implement a simple graphics tool. This must be built as a graphical application using the Java Swing and/or AWT classes. The software will allow users to type in simple commands which cause a virtual pen (sometimes it is also called a turtle after the Logo programming language which was popular in schools in the 1980s) to move around a virtual canvas area drawing lines as it moves. The final product should be a fully working application which includes a typical application window, containing a menu bar and supporting dialogue boxes. You should use GraphicsPanel.java inside your program. It sets up a canvas for you to draw on and displays a simple turtle. You can modify it as you see fit. Requirement 1 – basic application 20 marks The first requirement is to develop a simple GUI which contains an outer window (frame), a canvas drawing area, a console type text input area, and a menu bar. Themenu bar should contain at least a ‘File’ and a ‘Help’ menu. The ‘File’ menu should contain the options “New”, “Load”, “Save” and “Exit”. The ‘Help’ menu should contain an “About” option. The application window should be resizable by the user. For this first requirement the menu options can be blank and have no attached functionality, subsequent requirements will provide the actual functionality. When selected each option should pop–up a dialogue saying that the option has been selected. Program runs Panel for drawing is displayed You need to demonstrate that the panel can be drawn on (note if you have implemented subsequent requirements they will do this). Console text area Note this could be the console itself or some sort of component such as a TextArea or TextField. You need to demonstrate that text can be entered and minimally echoed back (note if you have implemented subsequent requirements they will do this). (5 marks) File Menu Items with pop ups for each New (1 mark) Load (1 mark) Save (1 mark) Exit (1 mark) Help Menu About (1 mark) UML Diagram (10 marks) Should show internal detail of your classes (including GraphicsScreen.java). Any Swing/AWT classes or other external classes should be shown as boxes only. Requirement 2 – command support 35 marks The second requirement is to implement some basic commands to allow drawing. The users should be able to type in these commands within the console text area. The “New” menu option should cause the canvas to be cleared. The application should be able to spot invalid commands and report this to the user. The commands to be supported are very explicit and MUST match those shown in the following table. The command must be typed in by the user and not selected from a menu as some of them will have parameters which MUST be typed with the command, for example “forward 90”. The parameters must not be entered separately, either after the command or in a separate text field. These commands must not be entered using separate textfields for command and parameter. When the program first runs the turtle/pen should be set to the middle of the canvas and point down the screen and the pen should be set to “down”. Hence if the first command was “forward 100” a line from the middle of the screen to nearer the bottom would be drawn. Requirement 3 – loading, saving and exiting. 20 marks The main aim of requirement three is to implement the remaining menu options. The “Load” and “Save” should allow the user to select a file name via a dialogue box. The current image should then be either loaded or saved to a file. If the user attempts to load a new image without the current one been saved first then a warning dialogue should be shown to the user, which should provide the opportunity for the current image to be saved first. The “Exit” and “About” menu options should also be completed. During exit a similar check should be made to see whether the user is attempting to exit without saving changes.

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input and output devices

what are 2 input and output devices for : a. hospital b. animated film studio c. school

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How to create a simple website

Can anyone explain how to set up a simple website for my school project?

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How does a inkjet printer work

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How do you create a flow chart?

Can I have this by the 22nd of June please??

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How do laser printers work

I understand inkjets squirt ink out, but I don't understand how light can be used to print a page

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how do i setup protocols

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Homework help for Ict

If you were given £100 and asked to buy additional or replacement hardware for a Desktop Computer, what would you buy, and why?

I do not understand this question, please help ASAP

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Explanations on computers

could you explain all of these points please:

-Extent it Achieves Purpose of computers -How computers work -Benefits of computers -The limitations of computers

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Case of the missing crystal eggs. Use rough pseudo code to solve? Edit

CHALLENGE: Case of the missing crystal eggs

The scientists noticed a set of crystal eggs had been stolen when they reported to work early Tuesday morning. Reliable witnesses say the eggs were definitely there on Monday morning. The thieves must have come in sometime between Monday morning and Tuesday morning.

The camera system had been disconnected, but the laboratory had a backup system: a webcam took a picture of the crystals every 5 minutes and stored it securely. Every hour 12 pictures were taken, so in the 24-hour period, 12 * 24 = 288 pictures were taken.

Write rough pseudocode to find out the time of the crime as quickly as possible

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bluetooth sensor network detecting & monitoring bluetooth device

i would like to know appropriate devices i would need(type of sensor nodes,gateway)

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BBC Bitesize

Its sooo booring. Everyone says use it. But its boring.

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advantages of cyberspace

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