viernes, 19 de mayo de 2017

BASIC STANDARD CONTROLS

Read the following descriptions and write the corresponding properties.


S.N
Properties
Description
1
The button that's automatically activated when you press Enter, no matter which control has the focus at the time. Usually the OK button on a form is set as AcceptButton for a form.
2
The button that's automatically activated when you hit the Esc key.
Usually, the Cancel button on a form is set as CancelButton for a form.
3
This Boolean property determines whether the controls you place on the form are automatically scaled to the height of the current font. The default value of this property is True. This is a property of the form, but it affects the controls on the form.
4
This Boolean property indicates whether scroll bars will be automatically attached to the form if it is resized to a point that not all its controls are visible.
5
This property lets you specify the minimum size of the form, before the scroll bars are attached.
6
The AutoScrollPosition is the number of pixels by which the two scroll bars were displaced from their initial locations.
7
Sets the form background color.
8
The BorderStyle property determines the style of the form's border and the appearance of the form:
  • None: Borderless window that can't be resized.
  • Sizable: This is default value and will be used for resizable window that's used for displaying regular forms.
  • Fixed3D: Window with a visible border, "raised" relative to the main area. In this case, windows can't be resized.
  • FixedDialog: A fixed window, used to create dialog boxes.
  • FixedSingle: A fixed window with a single line border.
  • FixedToolWindow: A fixed window with a Close button only. It looks like the toolbar displayed by the drawing and imaging applications.
  • SizableToolWindow: Same as the FixedToolWindow but resizable. In addition, its caption font is smaller than the usual.
9
By default, this property is True and you can set it to False to hide the icon and disable the Control menu.
10
If True, allows the form to respond to mouse and keyboard events; if False, disables form.
11
This property specify font type, style, size
12
Determines whether a Help button should be displayed in the caption box of the form.
13
This is the height of the Form in pixels.
14
By default, this property is True and you can set it to False to hide the Minimize button on the title bar.
15
By default, this property is True and you can set it to False to hide the Maximize button on the title bar.
16
This specifies the minimum height and width of the window you can minimize.
17
This specifies the maximum height and width of the window you maximize.
18
This is the actual name of the form.
19
This property determines the initial position of the form when it's first displayed. It will have any of the following values:
  • CenterParent: The form is centered in the area of its parent form.
  • CenterScreen: The form is centered on the monitor.
  • Manual: The location and size of the form will determine its starting position.
  • WindowsDefaultBounds: The form is positioned at the default location and size determined by Windows.
  • WindowsDefaultLocation: The form is positioned at the Windows default location and has the dimensions you've set at design time.
20
The text, which will appear at the title bar of the form.
21
These two properties set or return the coordinates of the form's top-left corner in pixels.
22
This property is a True/False value that lets you specify whether the form will remain on top of all other forms in your application. Its default property is False.
23
This is the width of the form in pixel.

AutoScrollPosition
BackColor
Text
Top, Left
TopMost
MinimizeBox
BorderStyle
MaximizeBox
MinimumSize
Width
AutoScrollMinSize
AcceptButton
Font
HelpButton
Height
MaximumSize
Name

StartPosition
CancelButton
AutoScale
AutoScroll
ControlBox
Enabled

viernes, 12 de mayo de 2017

miércoles, 10 de mayo de 2017

PROGRAMMING LANGUAGE

How a Computer understands PROGRAM :
A program is a set of instructions that tell the computer to do various things; sometimes the instruction it has to perform depends on what happened when it performed a previous instruction. This section gives an overview of the two main ways in which you can give these commands. One way uses an interpreter, the other a compiler. As human languages are too difficult for a computer to understand in an unambiguous way, commands are usually written in one or other languages specially designed for the purpose.
LEVELS  OF  PROGRAMMING  LANGUAGES
There is only one programming language that any computer can actually understand and execute: its own native binary machine code. This is the lowest possible level of language in which it is possible to write a computer program. All other languages are said to be high level or low level according to how closely they can be said to resemble machine code.
In this context, a low-level language corresponds closely to machine code, so that a single low-level language instruction translates to a single machine-language instruction. A high-level language instruction typically translates into a series of machine-language instructions.
A program written in a low-level language can be extremely efficient, making optimum use of both computer memory and processing time. However, to write a low-level program takes a substantial amount of time, as well as a clear understanding of the inner workings of the processor itself. Therefore, low-level programming is typically used only for very small programs, or for segments of code that are highly critical and must run as efficiently as possible.Low level languages are:
1 – Machine Language
2 – Assembly Language
High-level languages permit faster development of large programs. The final program as executed by the computer is not as efficient, but it saves programmer time.High level languages are:
1 – Visual Basic
2 – C
3 – Java
4 – C++ etc

Read the text again and answer the following questions.
1. What is a program?
2. What are the two ways to give commands?
3. Write 3 differences between compiler and interpreter.
4. What is the only programming language that any computer can execute and understand?
5. How does a low level language translate?
6. How does a high level language translate?
7. What is the disadvantage of a low level language?
8. What are the low level languages?
9. What is the advantage of a high level language?
10. What are the high level languages? 


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https://techdecoder.files.wordpress.com/2015/10/types-n-history-of-pl.jpg

miércoles, 3 de mayo de 2017

HTLM






Read the following text and complete it with the corresponding Word from the box.

Angle brackets  – Cascading Style Sheets – World Wide Web – Java Script
Semantically – images- links – Web applications
Angle brackets – World Wide Web Consortium – Information

Hypertext Markup Language (HTML)
is the standard markup language for creating web pages and ___________________. With __________________________ (CSS) and JavaScript it forms a triad of cornerstone technologies for the _______________________. Web browsers receive HTML documents from a webserver or from local storage and render them into multimedia web pages. HTML describes the structure of a web page ___________________ and originally included cues for the appearance of the document.
HTML elements are the building blocks of HTML pages. With HTML constructs, _________________ and other objects, such as interactive forms, may be embedded into the rendered page. It provides a means to create structured documents by denoting structural semantics for text such as headings, paragraphs, lists, _______________, quotes and other items. HTML elements are delineated by tags, written using _________________ Tags such as <img /> and <input /> introduce content into the page directly. Others such as <p>...</p> surround and provide _____________________ about document text and may include other tags as sub-elements. Browsers do not display the HTML tags, but use them to interpret the content of the page.

HTML can embed programs written in a scripting language such as _________________ which affect the behavior and content of web pages. Inclusion of CSS defines the look and layout of content. The ________________________ (W3C), maintainer of both the HTML and the CSS standards, has encouraged the use of CSS over explicit presentational HTML since 1997. 




https://quizlet.com/19219665/flashcards

lunes, 19 de septiembre de 2016