Digital computers can be classified into several types based on their size and capabilities. Supercomputers are the largest and most powerful, used for scientific applications. Mainframe computers are also very large and can handle vast amounts of data for large organizations. Mini computers have fewer terminals but more processing power than mainframes. Microcomputers include portable devices like laptops, tablets, and smartphones. Each type has differing processing speeds, memory capacities, and uses.

2. Talk Of The Day

3. Topic:
Classification of digital computers

4. We will Discuss
 Digital computer
 Types of digital computer
 Use of different types of digital computers
 Application of different types of digital computers.

5. • A digital computer works with digits .
• A digital computer is used to process digital
data. It is a discrete data and having only two
possible values(0,1).
• Digital computer provide accurate result but
are slower than analog computer.
• Digital computers can store more information
than analog computers.
Digital computers

8. Super Computer:

9. • Super computer are the largest, fastest, most
powerful and most expensive computers.
• Super computers can be accessed by many
individuals at the same time.
• Super computers are used for scientific
applications, having mathematical
calculations.
• The first super computer was built in the
1960s for the united States department of
Defence.
Super Computer:

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• High processing speed
• High capacity memory
• Computes data processing in short time
• Solving highly sophisticated problems
• Cost varies from 1 million to 5 million
Uses:
• Used for weather prediction
• Weapon design and atomic research
• Used for heavy scientific and
mathematical calculations
Key features

11. • Operating Supercomputer
requires highly qualified staff.
• Experts were required for such
computer engineering.
• They are sensitive to
temperature, humidity, dust, etc.
• Non portability & large size
Drawback

12. • A mainframe computer is a very
large computer capable of
handling and processing very
large amount of data quickly.
• They are used in large institutions,
such as government agencies and
large corporations.
Mainframe computer

13. Cont.
13

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• Mainly used by large organizations such
as banks, insurance, companies,
hospitals, railways,…
• Smaller in size than super computer
• Large memory and huge capacity to
process and store data
• Used to share common computing
facilities
• Allows networking with to many
terminals
• Cost varies from hundreds of thousand
dollars
Key features

15. • Experts and highly qualified
professionals were required to
operate it
• Sophisticated technology
required for manufacturing &
assembling the computer
Draw backs

16. • The micro processor used in mini
computers has almost the same as
mainframe, only the number of
terminals that can be connected to
the computer not as much as in
mainframe.
• They have terminals in hundreds, only
suitable for smaller companies. The
physical size of mini computers are
not as big as mainframe.
Mini Computer

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• Higher processing speed but
slower than super computer &
Mainframe computer
• Portable computers because of
smaller size
• Provide
• Greater processing power
• Large storage capacity
• Better graphic display
Key features

18. • Computer aided design
• Multimedia applications
• Simulation and visualization
• Usually uses Unix based
multiuser operating systems
Used for

19. Micro computer

20. Micro computer
• Portable computers used by those who need computing
resources wherever they go
• Smaller size and can fit in a briefcase
• Wight around 2 or more kg
• Comfortable computers and can be placed on lap, so they are
called laptop
• Designed to operate with chargeable batteries
• Used to consume little power and suspended whenever not used

21. Handheld computers
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• Portable , general purpose
computers
• Designed to meet personal
computing needs
• Generally used by one person
at a time but supports multi
tasking
Common types of PC
• Desktop computer
• Laptop computer
• Smart phones and tablet
• Embedded computers
Key feature:

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Handheld computers
• Devices that can be hold
in hand
• Types are
• Tablet
• Pocket PC
• Smart phone