Calvin Sims
Lab 4.1

1. A programming language is designed to be a human-readable (and 
-writeable!)
way to tell computers what to do. Programming languages allow us to 
give
computers instructions. Most computer scientists would agree that 
JavaScript is a
programming language, but many would not consider HTML one. 
Discuss one similarity between JavaScript and HTML that suggests both 
might be
programming languages.

HTML is not an actual programming. Programing languages usually are 
written to perform or carry
out a function. However, they are similar because they are boh web 
related. Javascript can be
used as a converter while the HTML displays the site.

Discuss one difference between HTML and JavaScript that suggests that 
suggests only JavaScript
is programming language.

The HTML formats how a page is displayed, it does not actually have a 
function. However, Javascript
can manage and run counters, games, etc.

2. Consider the concepts of input and output in the context of everyday 
devices. The
telephone takes input via its dialing buttons (or dial, if you have a 
rotary phone)
and the end of the handset you speak into. Phone output comes from the 
ringer
and the end of the handset you listen to. Consider each the following 
everyday
devices and describe their input and output as thoroughly as possible: 
television,
portable CD player. 

Television signals come in through a jack (input) and is displayed on 
the display screen(output).It
also receives signals from the buttons that are pressed to display the 
channel that is wanted.
Portable CD players get its information using a laser to read a 
disc(input) and sound comes out through 
headphones or speakers (output). CD players operate by selecting a 
track and playing that track aloud.


3. Consider the short JavaScript program you work with in Parts 2 and 3 
of this lab.
Does this program have input, output, both?

Both

Describe the input and/or output.

The input is what you enter for the pop-up message to display. The 
output is the messsage
that is displayed when the pop-up window shows.

How about the currency converter program?

Currency converter has input and outout.