A computer processes raw data by taking it in, storing it, manipulating it, and outputting the results. An operating system manages computer resources and ensures different programs do not interfere. A compiler translates human-readable source code into machine-readable object code. Applications are programs designed for end users like word processors or games. Programming languages have evolved from low-level machine code to high-level languages that more closely resemble human languages.

3.  What is a computer?
 A computer is an electronic machine that
processes information—in other words, an
information processor: it takes in raw
information (or data) at one end, stores it until
it’s ready to work on it, chews and crunches it
for a bit, then spits out the results at the other
end.

5.  OPERATING SYSTEM (OS)
 For large systems, the operating system has even
greater responsibilities and powers. It is like a
traffic cop -- it makes sure that different
programs and users running at the same time do
not interfere with each other. The operating
system is also responsible for security, ensuring
that unauthorized users do not access the
system.

6.  COMPILER
 A program that translates source code into object
code.
 The compiler derives its name from the way it
works, looking at the entire piece of source code
and collecting and reorganizing the instructions.

7.  APPLICATION
 A program or group of programs designed for end
users.
 Software can be divided into two general classes:
systems software and applications software.

9. PROGRAMMING
LANGUAGE
EVOLUTION
LOW-LEVEL HIGH LEVEL
ASSEMBLY
MACHINE CODE 3rd Generation 4th Generation 5th Generation
CODE

10.  The early years
 The Abacus is generally considered to be the first
mechanical computer.

11.  InFrance, Joseph-Marie
Jacquard invented an
automatic loom using
punched cards for the
control of the patterns
in the fabrics. The
introduction of these
looms caused the riots
against the
replacement of people
by machines.

12.  1943 - Work on ENIAC was started
in at the University of Pennsylvania,
with John Mauchly and J. Presper
Eckert responsible for its
implementation. The US Army liaison
was Herman Goldstine.
 1946 - ENIAC was unveiled in Philadelphia
(having being a secret during the war). ENIAC
was programmed through the rewiring of the
interconnections between the various
components. ENIAC was later to be modified
into a stored program machine

15.  PROGRAMMER
 A programmer is someone who writes computer
software
 PROGRAM
 Computer programs (also software programs, or
just programs) are instructions for a computer.[1]
A computer requires programs to
function, typically executing the program's
instructions in a central processor.[2]

16.  PROGRAMMING
 A programming language is a machine-readable
artificial language designed to express
computations that can be performed by a
machine, particularly a computer PROGRAM