The best programming languages to learn in 2020
Author: Technical Stuff in Developer @ TechRepublic
These are the best programming languages to learn to land a great developer job and to earn more
money. Also, find out developers' favorite tools, free resources for coders, GitHub guides, and more.
Image: iStockphoto/comzeal
While not every programmer may follow the oft-repeated advice to learn at least one new programming
language each year, most developers will continue to build their skills throughout their career. Many
programmers find their job requires them to periodically brush up on new programming languages and
their dialects, software frameworks, and tools. Knowing what to learn and when can be difficult,
particularly when new software frameworks and tools are created every day.
For an existing programmer, the trigger for learning a new language might be a particular problem that
needs solving, the requirement to take over someone else's code, or just curiosity about a new
programming language generating buzz. For beginner programmers, the priorities will be subtly
different, with the steepness of the learning curve having a notable effect on whether they stick with a
programming language.
Renowned programmer John Carmack, cofounder of id Software and CTO of Oculus VR, says there's no
problem starting with a higher-level programming language that abstracts away much of the complexity
of how computers work, but advises learners delve into the workings of that language. "You should try
and 'find the excitement' in even the most simple data processing tasks. There are layers and layers
ofthings going on in just compiling and running the simplest program that are worth investigating,"
according to an early blog post.
Cofounder of Stack Overflow Joel Spolsky goes further and recommends programmers learn a lowerlevel language, such as C. "Coding in C gives programmers a better idea of what the computer is actually
doing, in that it is a low-level language whose instructions more closely resemble those being executed
by the computer's CPU than those of a high-level language," he told TechRepublic.
"A lot of programmers these days will end up learning a higher level language--such as Python, Ruby, or
Java--and then not even really have a good grasp on anything that is causing that code in the language
to execute and therefore not appreciating why things are slow or weird.
"The idea is to have a really good comprehension of what happens at the level of abstraction below the
level where you work, of what the CPU is actually doing."
Of course, knowing which programming language is best suited to help you as a developer requires you
to understand what each language is capable of and why they are typically used.
The following resources will give you an overview of how different programming languages are used,
their strengths and weaknesses, and which programming languages are the most popular and why. Use
them to teach yourself about the programming languages available and, more importantly for new
learners, use coding to do something you enjoy.
As the other Stack Overflow cofounder Jeff Atwood wrote his: "I didn't become a programmer because
someone told me learning to code was important; I became a programmer because I wanted to change
the rules of the video games I was playing, and learning to code was the only way to do that. Along the
way, I too fell in love." -- Nick Heath
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Deliberate Learning: Learning How to Learn
by Kevin Wheeler
URL
| Apr 28, 2013 | Learning | 0 comments
https://futureoftalent.org/deliberate-learning-learning-learn/
“. . .we can say that Muad’Dib learned rapidly because his first training was in how to learn. And the first
lesson of all was the basic trust that he could learn. It is shocking to find how many people do not believe
they can learn, and how many more believe learning to be difficult.” - Frank Herbert, Dune
This quote from the science fiction novel Dune underlines the difficulties anyone involved with training
or developing people face.
Very few people say they enjoy learning. Most people dread the idea of school, or formal learning. This
fear has roots in everything from embarrassment, fear of failure, fear of ridicule, to our society’s
worship of “book” learning over experiential learning.
And even fewer have ever been taught how to learn. For those who know how to learn, learning
becomes a fulfillment to curiosity, a way to overcome fear and a process that helps them face the many
decisions and dilemmas of life.
Children have the delightful gift of total trust that allows them to freely interact with the environment
and learn. They instinctively know how to learn. They experiment, test, challenge, make mistakes and,
most importantly, incorporate whatever they learn into their behavior. Unfortunately, as we go through
our formal schooling that built-in curiosity and ability to learn is taken out of us. What we learn formally
is rarely remembered or used.
Our organizations reflect this inability to learn. Only a few are learning organizations – ones that can
invent the future and do so regularly, as defined by Peter Senge. Few learn from past mistakes and many
repeat errors and bad decision-making processes.
But IBM, despite its age and reputation, is a highly adaptive learning organization that has managed to
survive and thrive for 100 years by continuously reinventing itself. It encourages learning, allows
employees to move internally fairly easily, offers a great deal of training, and uses project-based work as
a way to stimulate creativity and collaboration. It has made major strategic changes based on what
employees have observed and learned.
Apple, too, has programmed into itself the ability to take risks, be bold, and improve on what they and
others have done. A few other organizations have done this, but almost all fail. They try formal learning
and even spend huge sums on training courses and organizations. But the learning is formal, traditional
and ineffective because there is no room to reflect on what was learned and incorporate it into daily
behavior. Changing behaviors is often discouraged and challenging the status quo impossible.
As adults we continue learning throughout our lives – most often without even knowing it. We call this
“getting experience” or “learning by living” and it is how we have always learned most of what we know.
We buy a new phone, charge it, and start pushing buttons. Almost no one reads the manual, if it even
has one. We learn very little in formal ways, relying much more on asking others, experimenting, and
observing. What we don’t do is recognize the power this has to enrich our lives and give us far more
knowledge and capability than we imagine. By consciously and deliberately learning to learn we could
learn more, faster, and make changes to our lives accordingly.
If organizations want to survive and remain profitable well into the future, they must allow people more
time and freedom to engage in projects that stretch their abilities and to interact with people from a
wide array of backgrounds and experiences. They need to deliberately avoid groupthink and deliberately
allow dissent and open conversation.
By coupling teams or project members with debriefings and discussions about what was learned and
what changed in their thinking, people would develop patterns of deliberate learning. Deliberate
learning requires feedback, conscious thought, and interaction with others to become learning. The
results need to be reflected in actions and changes in behaviors.
Deliberate reflection, fun, and results lead to enduring learning. This is not to make informal learning
formal, but to ensure that learning is deliberate and thoughtful rather than, as usual, accidental and
random.
What is the difference between active load and passive load in
electronics?
26.4K views |View 64 upvotes |View 2 shares
Load in Computer Science
Updated: 11/16/2019 by Computer Hope
Load may refer to any of the following:
1. Load refers to the beginning or executing a program by moving (loading) the necessary information
from a drive (e.g., hard drive), into a computer's memory. Depending on the information being loaded,
the speed of the hardware, and how other programs are running determines the load time. If a program
or command shows a load average or progress indicator, it's an average of how long it takes to load or
execute.
2. With a web page or online service, load time is the total time it takes for the user to view the page or
use the service. As more file requests are required and file sizes are increased, the longer it takes to
load.
3. With performance, load describes the complexity or requirements it takes the software, hardware, or
computer to perform an action. For example, earlier games with basic graphics environments do not
require as much load as today's more advanced games. The environment in today's games could have
blades of grass, leafs on trees, more textures, and other objects that require more of a load on the
computer and graphics card.
4. When referring to electronics, a load is any circuit or device opposing electrical current.
Load in Electronics
Let's understand it in a layman approach:
So, first thing here is “What is load”? Then we will understand what active and passive load is.
Load: A simple definition of load (In the reference of electrical energy) is anything which consumes
energy, which is provided by source. In actual load consumes the electrical energy and transforms it into
any other form of energy (Heat, light etc.). In our day-to-day life, we observe so many loads in our house
itself.
As you can see in the above image, bulb here act as a load. It consumes the electrical energy from the
main power supply and then convert it into light energy & thermal energy.
In the same way all the other electronics appliances connect with the main power supply in our home
and consume energy and based on their consumption load analysis chart is prepared.
So, i think now you must have a clear understanding of load.
Now let's understand about active & passive load. Before going on active and passive load lets
understand about active and passive devices.
Active devices are those devices which require some voltage or current for its operation. Like diode is
an active component so it requires a voltage for its operation. Active components fall in non-linear
category.
Passive devices are those devices which do not require any external source for their operation.
Examples are resistor, capacitor etc. Also, passive components fall in linear category.
So, in any circuit where passive element works as a load is referred as passive load. While in case of
active load, active element works as a load in circuit.
You can see in the above image that output is being taken from the transistor. So, transistor acts here as
an active load.
And in this figure, you can see an RC passive filter. Its actually a first order high pass filter. As you can
see here output is taken across resistor, which is passive element. So here the load offered is passive in
nature.
Basically, active load can be used in the circuit for automatic testing of power supplies & to check
whether the output voltage & current are within their specification from no load to maximum load or
not. Resistors can also be used for the same purpose but here you will have to change the value of the
load manually. So this is one application i talked about little bit. There are so many other applications
too.
So, this is all about active and passive load. Hope you will like it.
Thanks!!