BAG TECHNIQUE Bag technique-a tool making use of public health bag through wh...
Basha ppt
1.
2. INTRODUCTION
• Computer is an electronic device that operates on
electricity.
• We enters the data through input devices and it display
result through output devices.
• It process on the data entered in its CPU known as the brain
of Computer.
3. Importance of computer
• Computer has a very important role in our daily life.
• It makes our home and official activities easier.
• Computer has made the world as a global village.
5. BEFORE GENERATION OF COMPUTER
• Pascal's calculator (also known
as the arithmetic machine or
Pascaline) is a mechanical
calculator invented by Blaise
Pascal in the early 17th century
• Pascal was led to develop a
calculator by the laborious
arithmetical calculations.
6. The computer as we know it
today had its beginning with
a 19th century English
mathematics professor
name Charles Babbage.
He designed the Analytical
Engine
7. First Generation 1946-1959
• Vacuum tube technology
• Supported Machine language only
• Very costly
• Generate lot of heat
• Slow Input/output device
• Huge size
• Need of A.C.
• Non-portable
8. Second Generation (1956-1963)
• Use of transistors
• Smaller size as compared to First generation computers
• Generate less heat as compared to First generation
computers
• Consumed less electricity as compared to First generation
computers
• Faster than first generation computers
• Still very costly
• A.C. needed
• Support machine and assembly languages
9. Third Generation (1964-1971)
• IC used
• More Faster
• Smaller size
• Generate less heat
• Lesser maintenance
• Still costly
• A.C. needed
• Consumed lesser
electricity
• Support high-level
language
10. Fourth Generation 1971-1980
. Very cheap
• Use of PC's
• Very small size
• No A.C. needed
• Concept of internet was introduced
• Great developments in the fields of
networks
• Computers became easily available
11. Fifth Generation 1980-till date
• Development of true
artificial intelligence
• Development of
Natural language
processing
• More user friendly
interfaces with
multimedia features
12. Advantages
• Computer can perform a task more faster
than Human.
• It saves our precious time.
• It can makes a logic decisions.
• It can also saves our income when uses for
security purpose.
• We can connect with others in all over the
world through computer internet.
• We can send emails letters greetings and
invitation to our friends through internet.
13. Disadvantages
• We can harm our selves on negative
using of computers.
• It can also affect our eye sight.
• It also utilizes our most of the energy.
• It also waist the time of the children
while playing computer games.
• It can be also dangerous for children
because they do not know how to use
computer positively.
