Intro Chapter one of introduction to computer

it includes basics of c++ programming language

1. Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.McGraw-Hill Technology Education
McGraw-Hill Technology Education
Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved.

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•Zero Tolerance
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1A-2

3. Late Submissions
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given deadline.
1A-3

4. Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.McGraw-Hill Technology Education
Chapter 1A
Introducing Computer
Systems

5. 1A-5
The Computer Defined
•Electronic device
•Converts data into information
•Modern computers are digital
–Two digits combine to make data
•Older computers were analog
–A range of values made data

6. Characteristics of Computer
•Speed: A computer Performs operations
with great speed.
•Accuracy: The Computer gives
accurate results according to the
instructions provided.
•Storage: The storage capacity of the
computer is very large.
1A-6

7. •Versatility: The computers are used in
vide areas of human activities.
•Diligence: After long hours of work
humand being gets tired but a computer
never gets tired.
1A-7

8. Generations of Computer
•The term generation indicates the type of
Technology used in the Computer
construction. Different technologies have
been used for computers in Different times.
Computers can be divided into five
generations.
•First Generation (1942 – 1955)
•Second Generation (1955 – 1964)
•Third Generation (1964 – 1975)
•Fourth Generation (1975 – 1980)
•Fifth Generation (Since1980)
1A-8

9. Classification of Computers
On Basis of Size and Capacity
•The computer is classify into four
parts based on size and capability.
1.Micro Computer
2.Mini Computer
3.Main frame computer
4.Super Computer
1A-9

10. Microcomputer.
•A Micro Computer is generally
purpose of processing system
functionally etc.
•It is the smaller to any other large
system.
•Micro Computer is the self contain
units and usually design for used by
one person at a time.
1A-10

11. There are different types of
Microcomputer.
•Desktop Computer
•Laptop
•Smartphone
•Notebook
•Tablet
1A-11

12. Mini Computers.
•A Mini Computer is a medium size i.e.
more costly and power full then a
Micro Computer.
•An Important distinction between a
Micro Computer and Mini Computer
is usually design to serve to multiples
users.
1A-12

13. Mini Computers.
•There are different types of Mini
Computers.
•Tablet PC
•Desktop minicomputers
•Cell phones
•Notebooks
•High-end mP3 players
1A-13

14. Mainframe Computers.
•A computer with a large storage
capacity and very fast speed of
processing compare to Micro or Mini
Computer.
•They Support a large numbers of
terminals for used by a verity of users.
1A-14

15. Mainframe Computers.
•There are different types of
Mainframe Computers.
•ENIAC (Electric Numerical Integrator
and Calculator)
•UNIVAC
•ASCC (Automatic Sequence Control
Computer)
1A-15

16. Super Computers
•Supercomputer has internally large
storage capacity and computing
speed.
•Which are at least Ten Times faster
than other computer.
•The Super Computer is rotated in
terms of million instructions per
second.
1A-16

17. Super Computers
•These all examples of Famous Super
Computers are:-
1.Jaguar
2.Titan
3.Nebulae
4.IBM Roadrunner
5.K Computer
1A-17

18. 1A-18
Computers For Individual Use
•Desktop computers
–The most common type of computer
–Sits on the desk or floor
–Performs a variety of tasks
•Workstations
–Specialized computers
–Optimized for science or graphics
–More powerful than a desktop

19. 1A-19
Computers For Individual Use
•Notebook computers
–Small portable computers
–Weighs between 3 and 8 pounds
–About 8 ½ by 11 inches
–Typically as powerful as a desktop
–Can include a docking station

20. 1A-20
Computers For Individual Use
•Tablet computers
–Newest development
in portable
computers
–Input is through
a pen
–Run specialized
versions of office
products

21. 1A-21
•Handheld computers
–Very small computers
–Personal Digital Assistants (PDA)
–Note taking or contact management
–Data can synchronize with a desktop
•Smart phones
–Hybrid of cell phone and PDA
–Web surfing, e-mail access
Computers For Individual Use

22. 1A-22
Computers For Organizations
•Network servers
–Centralized computer
–All other computers connect
–Provides access to network resources
–Multiple servers are called server farms
–Often simply a powerful desktop

23. 1A-23
Computers For Organizations
•Mainframes
–Used in large
organizations
–Handle thousands
of users
–Users access
through a terminal

24. 1A-24
Computers For Organizations
•Minicomputers
–Called midrange computers
–Power between mainframe and desktop
–Handle hundreds of users
–Used in smaller organizations
–Users access through a terminal

25. 1A-25
Computers For Organizations
•Supercomputers
–The most powerful
computers made
–Handle large and
complex calculations
–Process trillions of
operations per
second
–Found in research
organizations

26. 1A-26
Computers In Society
•More impact than any other invention
–Changed work and leisure activities
–Used by all demographic groups
•Computers are important because:
–Provide information to users
–Information is critical to our society
–Managing information is difficult

27. 1A-27
Computers In Society
•Computers at home
–Many homes have multiple computers
–Most American homes have Internet
–Computers are used for
•Business
•Entertainment
•Communication
•Education

28. 1A-28
Computers In Society
•Computers in education
–Computer literacy required at all levels
•Computers in small business
–Makes businesses more profitable
–Allows owners to manage
•Computers in industry
–Computers are used to design products
–Assembly lines are automated

29. 1A-29
Computers In Society
•Computers in government
–Necessary to track data for population
•Police officers
•Tax calculation and collection
–Governments were the first computer users

30. 1A-30
Computers In Society
•Computers in health care
–Revolutionized health care
–New treatments possible
–Scheduling of patients has improved
–Delivery of medicine is safer