A computer program is a sequence of instructions written to perform tasks on a computer. Computer programming involves analyzing problems, developing algorithms, verifying requirements, and implementing algorithms in a programming language. Programming languages allow humans to write instructions for computers in a structured way. They must be precise as computers will literally execute the code as written. Some key early developments included Ada Lovelace's notes for calculating Bernoulli numbers, one of the first computer programs.
2. A computer program, or just a program, is
a sequence of instructions, written to
perform a specified task with acomputer. A
computer requires programs to function,
typically executing the program's
instructions in a central processor.[2] The
program has an executable form that the
computer can use directly to execute the
instructions.
3. Computer programming (often shortened
to programming) is a process that leads from an
original formulation of acomputing problem
to executable computer programs. Programming
involves activities such as analysis, developing
understanding, generating algorithms, verification
of requirements of algorithms including their
correctness and resources consumption, and
implementation (commonly referred to as coding of
algorithms in a targetprogramming language
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5. A programming language is
a formal constructed language designed to
communicate instructions to amachine,
particularly a computer. Programming
languages can be used to
create programs to control the behavior of
a machine or to express algorithms.
6.
7. We use programming languages To be
accurate, internally the computer uses very
specific instructions, the so-called "machine
language". Since programming in machine
language is awkward, programmers program
in higher-level languages, that are easier to
understand for humans - such as Assembly
language, Java, C, Pascal, etc. Then, a
special program called a "compiler" then
converts this to instructions the computer can
understand.
8. During a nine-month period in 1840-
1843, Ada Lovelace translated the memoir
of Italian mathematician Luigi
Menabrea about Charles Babbage's
newest proposed machine, the Analytical
Engine. With the article she appended a
set of notes which specified in complete
detail a method for calculating Bernoulli
numbers with the Analytical Engine,
recognized by some historians as the
world's first computer program
9. Thousands of different programming languages have
been created, mainly in the computing field.
Programming languages differ from most other forms
of human expression in that they require a greater
degree of precision and completeness. When using a
natural language to communicate with other people,
human authors and speakers can be ambiguous and
make small errors, and still expect their intent to be
understood. However, figuratively speaking, computers
"do exactly what they are told to do", and cannot
"understand" what code the programmer intended to
write.
10. All programming languages have
some primitive building blocks for the
description of data and the processes or
transformations applied to them (like the
addition of two numbers or the selection of
an item from a collection). These primitives
are defined by syntactic and semantic
rules which describe their structure and
meaning respectively.