PPT: Introduction to Computer | Computer Awareness and Proficiency - SSC CGL PDF Download

 Page 1


Computer: 
Introduction, 
History, 
Generations and 
Types
Page 2


Computer: 
Introduction, 
History, 
Generations and 
Types
Introduction
Digital Literacy
In the digital age, 
understanding computers is 
crucial for SSC exams. Whether 
entering data, creating reports, 
or analyzing information, 
knowledge of computer 
functions simplifies these tasks 
and improves efficiency.
Language of Technology
Consider it learning 
technology's language4
mastering basics builds 
confidence in any job role. 
Computer literacy is a key skill 
tested in competitive exams, 
making it essential for career 
success.
Digital Navigation
With this knowledge, 
navigating the digital world 
becomes intuitive. This 
presentation will provide 
insights into computer 
fundamentals that benefit both 
your examinations and 
practical applications.
Page 3


Computer: 
Introduction, 
History, 
Generations and 
Types
Introduction
Digital Literacy
In the digital age, 
understanding computers is 
crucial for SSC exams. Whether 
entering data, creating reports, 
or analyzing information, 
knowledge of computer 
functions simplifies these tasks 
and improves efficiency.
Language of Technology
Consider it learning 
technology's language4
mastering basics builds 
confidence in any job role. 
Computer literacy is a key skill 
tested in competitive exams, 
making it essential for career 
success.
Digital Navigation
With this knowledge, 
navigating the digital world 
becomes intuitive. This 
presentation will provide 
insights into computer 
fundamentals that benefit both 
your examinations and 
practical applications.
What is a Computer?
1
Definition and Etymology
A computer is an electronic device 
that processes user input data and 
produces desired output. The term 
derives from Latin "computare" 
meaning "to compute. "
2
Components: Hardware and 
Software
Computers comprise hardware 
(physical components like 
monitors and keyboards) and 
software (programs and 
applications that execute 
operations).
3
Basic Functions
Computers perform four essential 
functions: Input (data entry), 
Processing (calculations), Output 
(displaying results), and Storage 
(saving data for future use).
Page 4


Computer: 
Introduction, 
History, 
Generations and 
Types
Introduction
Digital Literacy
In the digital age, 
understanding computers is 
crucial for SSC exams. Whether 
entering data, creating reports, 
or analyzing information, 
knowledge of computer 
functions simplifies these tasks 
and improves efficiency.
Language of Technology
Consider it learning 
technology's language4
mastering basics builds 
confidence in any job role. 
Computer literacy is a key skill 
tested in competitive exams, 
making it essential for career 
success.
Digital Navigation
With this knowledge, 
navigating the digital world 
becomes intuitive. This 
presentation will provide 
insights into computer 
fundamentals that benefit both 
your examinations and 
practical applications.
What is a Computer?
1
Definition and Etymology
A computer is an electronic device 
that processes user input data and 
produces desired output. The term 
derives from Latin "computare" 
meaning "to compute. "
2
Components: Hardware and 
Software
Computers comprise hardware 
(physical components like 
monitors and keyboards) and 
software (programs and 
applications that execute 
operations).
3
Basic Functions
Computers perform four essential 
functions: Input (data entry), 
Processing (calculations), Output 
(displaying results), and Storage 
(saving data for future use).
History of Computer Evolution
1
Abacus (16th Century)
First mechanical calculating device using beads on 
rods. Used for basic arithmetic operations and 
calculating square roots.
2
Pascaline (1642)
First mechanical adding machine invented by 
Blaise Pascal. Rectangular device with eight discs 
that performed addition and subtraction.
3
Analytical Engine (1834-71)
Charles Babbage's invention using punched cards 
and stored programs. Considered the first general-
purpose computer for basic arithmetic operations.
4
ENIAC (1950)
First electronic digital computer by JP Eckert and 
JW Mauchly. Used for weather prediction, atomic 
energy calculations, and scientific applications.
Page 5


Computer: 
Introduction, 
History, 
Generations and 
Types
Introduction
Digital Literacy
In the digital age, 
understanding computers is 
crucial for SSC exams. Whether 
entering data, creating reports, 
or analyzing information, 
knowledge of computer 
functions simplifies these tasks 
and improves efficiency.
Language of Technology
Consider it learning 
technology's language4
mastering basics builds 
confidence in any job role. 
Computer literacy is a key skill 
tested in competitive exams, 
making it essential for career 
success.
Digital Navigation
With this knowledge, 
navigating the digital world 
becomes intuitive. This 
presentation will provide 
insights into computer 
fundamentals that benefit both 
your examinations and 
practical applications.
What is a Computer?
1
Definition and Etymology
A computer is an electronic device 
that processes user input data and 
produces desired output. The term 
derives from Latin "computare" 
meaning "to compute. "
2
Components: Hardware and 
Software
Computers comprise hardware 
(physical components like 
monitors and keyboards) and 
software (programs and 
applications that execute 
operations).
3
Basic Functions
Computers perform four essential 
functions: Input (data entry), 
Processing (calculations), Output 
(displaying results), and Storage 
(saving data for future use).
History of Computer Evolution
1
Abacus (16th Century)
First mechanical calculating device using beads on 
rods. Used for basic arithmetic operations and 
calculating square roots.
2
Pascaline (1642)
First mechanical adding machine invented by 
Blaise Pascal. Rectangular device with eight discs 
that performed addition and subtraction.
3
Analytical Engine (1834-71)
Charles Babbage's invention using punched cards 
and stored programs. Considered the first general-
purpose computer for basic arithmetic operations.
4
ENIAC (1950)
First electronic digital computer by JP Eckert and 
JW Mauchly. Used for weather prediction, atomic 
energy calculations, and scientific applications.
History of Computers Generation
Original Meaning
The term 'computer' initially referred 
to people who performed 
calculations, dating back to the 16th 
century. Women were frequently 
employed as human computers for 
mathematical work.
Transition Period
By the late 19th century, 'computer' 
began to describe machines that 
could perform calculations 
automatically rather than human 
calculators.
Modern Definition
T oday, 'computer' refers to 
programmable digital devices that 
process, store, and retrieve 
information electronically.