PROGRAMMING LANGUAGE: RUBY (Summary)

Haga un resumen de Ruby:

4 Reasons Why You Should Learn Ruby As Your First Programming Language

 

Learning to code has a steep learning curve. You’ll encounter foreign concepts, technical jargon, and difficult choices. One of the very first choices you’ll have to make is which programming language you should start with.

Programming languages are similar to spoken languages. Each programming language falls into one or more categories. A few categories you might have heard of include imperative, object oriented, functional, or logic-based. Fortunately, once you learn one language it’s much easier to learn a second language in the same category. Unfortunately, that first language is going to be tough to learn.

Ruby is a general purpose programming language created in the 1990s by Yukihiro “Matz” Matsumoto. It’s also one of the best languages to start with when you’re first learning to code.

Ruby is one of the easier languages to learn

I remember when I first started learning to code. It was an introductory Computer Science class and the course curriculum used C++. In the world of programming, everyone’s first computer program is one that displays the message “Hello, world!”. It’s known as the “Hello World Program”.

Here’s what that looks like using C++:



C++ is complex

To display “Hello, world!” to a computer screen, you’ll have to learn multiple C++ functions and keywords. 

Ruby is considered a higher level programming language than C++. A high-level language features strong abstractions from computer details. Whereas low-level languages are closer to machine details (like memory addresses or CPU registers), high-level languages are closer to a naturally spoken language.

When you’re first learning to code, a high-level programming language like Ruby is much easier to use.

 Available at:   http://www.skilledup.com/learn/programming/4-reasons-learn-ruby-first-programming-language/ (Access in June, 2014)

8 VAIO NOTEBOOK (IMPERATIVE)

Traduzca las primera instrucciones de la PC del texto:

8 VAIO 505 SuperSlim Notebook User Guide
Connecting a Power Source
You can use either AC power or a rechargeable battery pack as a power
source.

Using the AC Adapter

1- Plug the cable attached to the AC adapter into the DC In connector on the computer.
2- Pull the prong on the AC adapter upwards and plug it into an AC outlet.

To remove the AC adapter

1- Unplug the AC adapter from the AC outlet and the adapter cable from the DC In connector on the computer.
2- Align the adapter cable with the groove on the AC adapter and wrap the cable around the AC adapter.

Using Battery Power

You can use a battery pack as a source of power. The PCGA-BP51 battery pack that comes with your computer is not fully charged at the time of purchase. Follow the steps below to insert and charge the battery pack.

To insert the battery pack

1- Move the lock lever on the bottom of the computer to the UNLOCK position.

2- Align the grooves and tabs on the battery with the tabs and notches on the back of the computer, and then slide the battery towards the computer until it clicks into place.

3- Slide the lock lever into the LOCK position to secure the battery on the computer.
- You can also purchase the high-capacity PCGA-BP52 battery pack as a separate option.

See “Using Power Saving Modes” on page 31 for power management information.