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Classification of Computer
The document provides an overview of computer education, categorizing computers into supercomputers, mainframe computers, mini computers, and microcomputers. It discusses the differences between professional and user computers, as well as between computer literate and computer competent individuals. Applications of various computer types in fields like research, weather forecasting, and data management are highlighted, along with definitions of key terms related to computer proficiency.
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Classification of Computer
- 1. Lecture no :4 Introduction to Computer/ Computer Education Mr. Muhammad Moazzam MPhil Public Health BSc BioMedical University of the Lahore
- 2. Contents • Generations ofComputer • Difference b/w Professional & User Computer • Difference b/w Computer literate & Computer competent
- 3. Classification of computer Computerscomes in many different sizes and ranges of power. They are different types of computer system have varying capabilities. Today’s computer systems are classified into following categories: • Super computer • Mainframe computer • Mini computer • Micro computer
- 4. Supercomputer • A computerthat was the fastest in the world at the time it was constructed • The most powerful computers in terms of performance and data processing are the Supercomputers • These are specialized and task specific computers used by large organizations • These computers are used for research and exploration purposes, like NASA uses supercomputers for launching space shuttles, controlling them and for space exploration purpose
- 5. Supercomputer • Can tackletasks that would not be practical for other computers. – Typical uses • Breaking codes • Modeling weather systems • highly complex problems that require extreme calculation power • The supercomputers are very expensive and very large in size. It can be accommodated in large air- conditioned rooms; some super computers can span an entire building.
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- 7. Uses of Supercomputer •Earthquake Studies: Supercomputers are used to study the Earthquakes phenomenon. Besides that supercomputers are used for natural resources exploration, like natural gas, petroleum, coal, etc.
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- 9. Uses of Supercomputer •Weather Forecasting: Supercomputers are used for weather forecasting, and to study the nature and extent of Hurricanes, Rainfalls, windstorms, etc.
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- 11. Uses of Supercomputer •Nuclear Weapons Testing: Supercomputers are used to run weapon simulation that can test the Range, accuracy & impact of Nuclear weapons.
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- 13. Mainframe • Large expensivecomputer capable of simultaneously processing data for hundreds or thousands of users. • Used to store, manage, and process large amounts of data that need to be reliable, secure, and centralized.
- 14. Mainframe computers • Mainframecomputers are used in large organizations like banks and insurance companies where many people need frequent access to the same data at the same time.
- 15. Mini computer • Minicomputers are lower to mainframe computers in terms of speed and storage capacity • They are also less expensive than mainframe computers • Some of the features of mainframes will not be available in mini computers. Hence, their performance also will be less than that of mainframes
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- 17. Microcomputer • The inventionof microprocessor (single chip CPU) gave birth to the much cheaper micro computers. They are further classified into • Personal Computers • Laptop Computers • Handheld Computers(PDAs)
- 18. Personal Computers They areusually easier to use and more affordable. They are normally intended for individual users for their word processing and other small application Requirements: • Desktop • Tower
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- 20. Laptop Computers • Laptopcomputers are portable computers. • They are lightweight computers with a thin screen. They are also called as notebook computers because of their small size. • They can operate on batteries and hence are very popular with travellers. The screen folds down onto the keyboard when not in use
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- 22. Handheld Computers(PDAs) • Handheldcomputers or Personal Digital Assistants (PDAs) are pen-based and also battery- powered. They are small and can be carried anywhere. They have touch screens which we use with a finger or a stylus. • They are used for scheduling appointments, storing addresses and playing games.
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- 24. Difference b/w Professional& User Computer Professional Computer : Someone who is an expert in the field of computer science. A person with an advanced degree in computer science & computer engineering User computer :- A person who uses computers for work or entertainment or communication or business. Computer user dose not advanced degree in computer science & computer engineering.
- 25. Difference b/w Professional& User Computer The computer professional is the one who made the software’s applications, etc. Some examples: A software engineer working in Microsoft is a computer professional. Professional User Computer :- computer :- The computer user is the one who uses the things produced by the computer professional. Some example: A computer user using the applications like MS office; computer games etc.
- 26. Difference b/w Computerliterate & Computer competent Computer literacy means the knowledge of computing ideas and terms and the ability to perform basic tasks using the computer . The computer literate understand the basics of computer operations: Computer literate :- Computer Competent :- Computer competent perform simple tasks with a computer. Email, research, interaction with others via the internet. It requires some definite level of expertise on one or more aspect of computer & dose not understand computer operations.
- 27. Difference b/w Computer literate& Computer competent For Example: - Turn on power; use a keyboard; run an application; send an email, surf the web, etc. • For Example: - Email, research, interaction with others via the internet. Creating and editing documents, spreadsheets and maybe a slideshow (PowerPoint).