the standard classical computers that we
used today often for chatting online
purchasing items playing game sending
emails or paying bills our marvel of
modern creation though they may
sometimes seem to have a mind of their
own
conventional computers of today are
always acting according to instructions
stored in memory they do two things
really well they store numbers in memory
and manipulate those numbers such as to
add and subtract more complex functions
can be accomplished by using algorithms
a specific set of clearly defined
instructions aimed at carrying out a
task or process the better the algorithm
defines and describes the problem
including appropriate decision tree
outputs the more powerful it will be
information and instructions such as
letters of the alphabet or numbers are
stored in strings of zeros and ones bits
of information being either a 0 or a 1
are held in a computer's transistors
when a transistor is on it encodes one
and when it is off it encodes a 0 1 in
classical computers have billions of
these transistors which allow them to
accomplish the numerous valuable tasks
we give them quantum computers have the
same key features of a classical
computer however instead of storing
information in finite values of zeros
and ones in a transistor they store
information in qubits a qubit can store
not only a 0 or a 1
but also both 0 and 1 at the same time
or an infinite number of values
in-between where a classical computer
has to perform one task at a time in
sequence before arriving at a solution a
quantum computer can perform many tasks
at once reducing the time to completion
significantly real-world application
examples would include such things as
breaking encryption keys in hours or
days where classical computers would
take centuries to accomplish or leading
a new frontier towards the emergence of
general AI and artificial intelligence
there are still a number of obstacles
that need to be solved before quantum
computing becomes mainstream the biggest
being the issue of scalability
increasing the number of qubits reduces
the quantum system stability mostly due
to outside forces such as heat causing
deep
parents a team of physicists at Google
have revealed how they plan to build a
quantum system that can support 49
qubits reliably this could potentially
lead to quantum computers that
outperform classical supercomputers
within the next few years
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