It finds applications in various fields of engineering, medicine, commercial, research and others. They are present everywhere, in all the devices that we use daily like cars, games, washing machines, microwaves etc. and in day to day computations like banking, reservations, electronic mails, internet and many more.
Computer
The word computer is derived from?
Compute meaning to compute
The hardware is the machinery itself. It is made up of the physical parts or devices of the computer system like the Electronic Integrated Circuits (ICs), magnetic storage media and other mechanical devices like input devices, output devices etc.
The hardware
is the one which controls the processing activities of the computer.
Software
evolution of computers
Vacuum tube technology
transistorized computer
integrated circuits
SSI,LSI,VLSI
Artifical intellegence
were very bulky and emitted large amount of heat which required air conditioning.
The first gen computers
a French mathematician invented the first mechanical machine, a rectangular brass box, called Pascaline
Blaise pascal
Frenchman invented a machine that could perform the four basic arithmetic functions of addition, subtraction, multiplication and division.
Colmar’s mechanical calculator, “Arithmometer”,
Charles Xavier thomas de colmar
The father of modern digital computer
Charles babbage
Mark 1 This was the first fully automatic calculating machine. It was designed by
Howard Aiken
This computer developed by John Atanasoff and Clifford Berry was the world’s first general purpose electronic digital computer.
atanasoff berry computer
Eniac means?
Electronic Numeric Integrator and calculator
computed at speed about thousand times faster than Mark I.
ENIAC
Who invented edvac
Dr John von neumann
edvac means
electronic discrete variable automatic computer
who designed univac 1
remington rand
univac stands for
universal automatic computer
classification of computers
Analog computers
digital computers
example of computers
microcomputer
notebook or laptop
handheld computer
hybrid computer
mini computer
mainframe computer
super computer
are more powerful than the micro computers. They have higher memory capacity and more storage capacity with higher speeds.
Mini computer
are very large computers which process data at very high speeds of the order of several million instructions per second.
mainframe computer
is the fastest, most powerful and most expensive computer which is used for complex tasks that require a lot of computational power.
Super computer
Applications of computer
Scientific, Engineering and research
businesses
medicine
education
information
games and entertainment
This is the major area where computers find vast applications. They are used in areas which require lot of experiments, mathematical calculations, weather forecasting, and Compute ate Aaru turng (My he in Casiong robotics, automobie manufacturing,
automatic process control devices etc.
Scientific, engineering and research