WEB PAGES ARE SETS OF INSTRUCTIONS
Like many digital formats, Web pages are made up of content and sets
of instructions for presenting content.
However, writers and designers don’t often have to think about the
instructions that present digital content. When you write a word processor
document or even an email, the blank box or page you type in
lends itself to the impression that what you write is all that there is to
your document. Software dubbed as “What You See Is What You Get”
reinforces this impression.
But below the deceptively simple surface of a blank email or document
is an entirely different kind of writing: computer language. That
language does things like ensure that the email address in the To: box
is where the email is ultimately sent, or that when you hit the bold button
in your word processor, the text displays as bold and is saved and
printed that way.
Most of us rarely think about that language beneath the surface.
We write our documents, print them out, and hand them off; we send
emails or instant messages, or post on Facebook and Twitter, and never
give the underlying code a second thought.
Or at least that’s what we do until something goes wrong.
Web Design: A Pessimist’s View
Everyone has a story about a digital file that gets messed up: a word
processor document that mysteriously puts a bullet point next to what
ought to be a paragraph. An email message whose punctuation appears
as question marks. Although it is tempting and sometimes the most
logical thing to assume that the software has simply gone crazy, those
errors and thousands like them often originate in the instructions that
get passed to a program to read the contents of a digital file.
In the case of most word processors, email programs, photo editors,
and many other kinds of software and the files the software generates,
there is no hope for a human who wants to fix the file’s instructions
herself. In many cases, both the software and the document it produces
is closed source, meaning that its code cannot be viewed or edited directly
by a human being.
المادة المعروضة اعلاه هي مدخل الى المحاضرة المرفوعة بواسطة استاذ(ة) المادة . وقد تبدو لك غير متكاملة . حيث يضع استاذ المادة في بعض الاحيان فقط الجزء الاول من المحاضرة من اجل الاطلاع على ما ستقوم بتحميله لاحقا . في نظام التعليم الالكتروني نوفر هذه الخدمة لكي نبقيك على اطلاع حول محتوى الملف الذي ستقوم بتحميله .
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