The presentation provides an overview of computers including their introduction, types, classification, characteristics, capabilities, and limitations. It discusses the main types of computers such as mainframes, mini computers, microcomputers, and super computers. The key characteristics of computers outlined are word length, speed, accuracy, storage, and automation. It describes what computers can do like complex calculations, data storage, and entertainment. The presentation concludes with some limitations of computers including that they are machines that cannot perform tasks requiring human qualities like creativity.

1. PRESENTATION # 01
SUBMITTEDTO :
SIR UBAID ULLAH
SUBMITTEDBY :
AYESHA ZAHEER
MEHWISH abbasi
MOHSINKhan
ISRAR Ahmed

2.  INTRODUCTION
 TYPES OF COMPUTERS
 CLASSIFICATION OF COMPUTERS
 CHARACTERISTICS OF COMPUTERS
 WHAT COMPUTERS CAN DO
 WHAT COMPUTER CAN’T DO

3. INTRODUCTION
A computer is a programmable machine . The two
principle characteristics of a computer are :
 It responds to a specific set of instructions in a
well-defined manner .
 It can execute a prerecorded list of instructions
(program) .SS

5. TYPES OF COMPUTER

6. Classification of Computer
When we study on the basis of their
construction....
 Size.
 Performance.
 Speed of execution.
 Technological development.
 Power of computational process.
Then classified into following types.....

7. MAINFRAME COMPUTER
 Very large.
 Expensive computer.
 Process data at very high speed.... MIPS (
million instreaction in per second ).
 Control data more then 1000 users.
 Process hundred different program at a time.
 Major manufacture compny.
 uses.

8.  First mainframe
computer
manufacturer by
IBM (
international
business
machines )

9. Mini computer
 Same as mainframe
 Smaller in size
 Less cost
 Less speed and capacity
 First interduced in 1960s
 Major manufacturers compny
 Uses

10. Miniframe Computer

11. MICRO COMPUTER
 Most common type of computer ( PC )
 Easily to affordable
 First manufacture compny
 limited processer
 singer user
 90% people used in this computer
 uses

12. Micro computer

13. Super computer
 Artificial intelegence
 Most power full and fastest
 More expensive ( cost )
 Very big in size
 Processing speed
 Uses
 Manufacturer companies

14. Super computer

15. CHARACTERISTICS OF COMPUTER
 Word length :
A digital computer operates on binary digits – 0 and 1 .
The number of bitsthat a computer can process at a time in parallel
is called its word length .

16. Speed :
 Computers can calculate at very highspeed, for example it can
execute millions of instructions per second .

17. Accuracy :
 The accuracy of a computer systemis very high . Errors
in hardware can occur , but error detecting and
correcting techniques will prevent false result .

18. STORAGE :
 Capability of storing and
retrieving hugeamounts of
data in a fast and efficient
manner is one of the
importantcharacteristic of
computer .

19. Automation :
Computer can perform every difficult task flawlessly
and execute the programs in the correct sequence .

20.  Computer is a versatile machine . It is
capable of performing almost any
task , provided the task can be
reduced to a series of logical steps .

21. WHAT COMPUTER CAN DO?
Computer plays
an important role
in our daily life.
Now a days
computer is used
to perform
different tasks .

22. Complex calculations
 Computer can
solve any type of
complex
calculation and
gives us right
answer and can
perform
arithmetic and
logical
operations in a
quick way.
• =
• >
• <
+ -
/x

23. STORAGE
Computer can
store large
amount of data
and information.
For Example:
Documents
Pictures
Videos
etc

24. ENTERTAINMENT
 Computer can also
be the source of
entertainment.
 We can entertain
ourselves by
playing
 Games
 Watching Movies
 Listening Music
 etc.

25.  In offices Computers can be used for
preparing letters , documents and reports.
 In Hotels Computer are can be used for
advance booking of rooms , preparing bills and
providing enquiry services.
 In Railways computer are can be used to do
rail reservation, printing of tickets and
preparation of reservation charts.
 Doctors can use computers for diagnosing
illness and treatment of diseases.

26. WHAT COMPUTER CAN NOT DO?

27. . Computer is a
machine and
we have
made it so it
cannot do
such a tasks
which we can
do.
I can’t do really

28. Productivity :
 Computer haven’t yet make all
our expectationas a
productivity improvement
tool . Sometimes it takes
longer time to do things as
compared to do manually .