text-decoration:none; } a:visited { color:#800080; text-decoration:none; } a:hover { color:#ffff66; text-decoration:underline; } a img { border-width:0; } /* Header ----------------------------------------------- */ #header-wrapper { width:660px; margin:0 auto 10px; border:1px solid #ff007f; } #header-inner { background-position: center; margin-left: auto; margin-right: auto; } #header { margin: 5px; border: 1px solid #ff007f; text-align: center; color:#ff007f; } #header h1 { margin:5px 5px 0; padding:15px 20px .25em; line-height:1.2em; text-transform:uppercase; letter-spacing:.2em; font: italic bold 200% Courier, monospace; } #header a { color:#ff007f; text-decoration:none; } #header a:hover { color:#ff007f; } #header .description { margin:0 5px 5px; padding:0 20px 15px; max-width:700px; text-transform:uppercase; letter-spacing:.2em; line-height: 1.4em; font: italic bold 95% Verdana, sans-serif; color: #99C9FF; } #header img { margin-left: auto; margin-right: auto; } /* Outer-Wrapper ----------------------------------------------- */ #outer-wrapper { width: 660px; margin:0 auto; padding:10px; text-align:left; font: italic normal 121% Georgia, Times, serif; } #main-wrapper { width: 410px; float: left; word-wrap: break-word; /* fix for long text breaking sidebar float in IE */ overflow: hidden; /* fix for long non-text content breaking IE sidebar float */ } #sidebar-wrapper { width: 220px; float: right; word-wrap: break-word; /* fix for long text breaking sidebar float in IE */ overflow: hidden; /* fix for long non-text content breaking IE sidebar float */ } /* Headings ----------------------------------------------- */ h2 { margin:1.5em 0 .75em; font:normal bold 78% Courier, monospace; line-height: 1.4em; text-transform:uppercase; letter-spacing:.2em; color:#00FF80; } /* Posts ----------------------------------------------- */ h2.date-header { margin:1.5em 0 .5em; } .post { margin:.5em 0 1.5em; border-bottom:1px dotted #ff007f; padding-bottom:1.5em; } .post h3 { margin:.25em 0 0; padding:0 0 4px; font-size:140%; font-weight:normal; line-height:1.4em; color:#ffff66; } .post h3 a, .post h3 a:visited, .post h3 strong { display:block; text-decoration:none; color:#ffff66; font-weight:bold; } .post h3 strong, .post h3 a:hover { color:#800080; } .post-body { margin:0 0 .75em; line-height:1.6em; } .post-body blockquote { line-height:1.3em; } .post-footer { margin: .75em 0; color:#00FF80; text-transform:uppercase; letter-spacing:.1em; font: italic normal 86% Courier, monospace; line-height: 1.4em; } .comment-link { margin-left:.6em; } .post img { padding:4px; border:1px solid #ff007f; } .post blockquote { margin:1em 20px; } .post blockquote p { margin:.75em 0; } /* Comments ----------------------------------------------- */ #comments h4 { margin:1em 0; font-weight: bold; line-height: 1.4em; text-transform:uppercase; letter-spacing:.2em; color: #00FF80; } #comments-block { margin:1em 0 1.5em; line-height:1.6em; } #comments-block .comment-author { margin:.5em 0; } #comments-block .comment-body { margin:.25em 0 0; } #comments-block .comment-footer { margin:-.25em 0 2em; line-height: 1.4em; text-transform:uppercase; letter-spacing:.1em; } #comments-block .comment-body p { margin:0 0 .75em; } .deleted-comment { font-style:italic; color:gray; } .feed-links { clear: both; line-height: 2.5em; } #blog-pager-newer-link { float: left; } #blog-pager-older-link { float: right; } #blog-pager { text-align: center; } /* Sidebar Content ----------------------------------------------- */ .sidebar { color: #ff007f; line-height: 1.5em; } .sidebar ul { list-style:none; margin:0 0 0; padding:0 0 0; } .sidebar li { margin:0; padding-top:0; padding-right:0; padding-bottom:.25em; padding-left:15px; text-indent:-15px; line-height:1.5em; } .sidebar .widget, .main .widget { border-bottom:1px dotted #ff007f; margin:0 0 1.5em; padding:0 0 1.5em; } .main .Blog { border-bottom-width: 0; } /* Profile ----------------------------------------------- */ .profile-img { float: left; margin-top: 0; margin-right: 5px; margin-bottom: 5px; margin-left: 0; padding: 4px; border: 1px solid #ff007f; } .profile-data { margin:0; text-transform:uppercase; letter-spacing:.1em; font: italic normal 86% Courier, monospace; color: #00FF80; font-weight: bold; line-height: 1.6em; } .profile-datablock { margin:.5em 0 .5em; } .profile-textblock { margin: 0.5em 0; line-height: 1.6em; } .profile-link { font: italic normal 86% Courier, monospace; text-transform: uppercase; letter-spacing: .1em; } /* Footer ----------------------------------------------- */ #footer { width:660px; clear:both; margin:0 auto; padding-top:15px; line-height: 1.6em; text-transform:uppercase; letter-spacing:.1em; text-align: center; } -->

Virus de computadora

sábado, 16 de mayo de 2009

Un virus es un programa potencialmente danino que afecta una computadora negativamente, alterando la forma en que la computadora trabaja sin el conocimiento o permiso del usuario.
Durante la fase de infeccion los virus desempenan as siguientes fases:

  • Primero ,el virus se duplica asimismo en los programas de archivos.
  • Segundo, el virus se oculta para evitar su deteccion.
  • Finalmente,los virus estan pendientes a que ciertas condiciones o eventos y se activen cuando dichas condiciones o eventos ocurren.

Publicado por Luz Serrano Lopez en 15:36  

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