ComputerIntroduction.ppt

Fundamentals for Better Communication
Through Computer
By
P. H. Prajapati
Extension Education Institute
AAU, Anand
What is Computer ?
 Computer is an electronic device.
 Can store large amounts of data.
 Can performing operations on data.
 Performing given function on the data & displays the result
as output.
 Process data whenever needed.
 Known from ‘to compute’
What is Process?
 Computer works on data as per programme is called process.
 Processing means operations like…..
 Calculations,
 Logical decision making,
 Outputting data,
 Communicating with others computer etc.
History of Computers
 First(1945-1955): Used vacuum tubes. Were very large. Generated
immense heat. Very expensive.
 Second(1955-1965): Used transistors. Continued to be large and
expensive.
 Third(1965-1975): Used integrated circuits. Significant reduction in
size and cost
 Fourth(1975-1995): Uses Very Large Scale Integration. Desktop
computers would not have been possible without
VLSI. It used Microprocessor minimizing the size
of P.C.
 Fifth (in progress): Will provide us with Artificial intelligence. Also
called knowledge information processing system
Characteristics of Computer
 Speed
 Arithmetical and Logical
Operations
 Accuracy
 Reliability
 Storage
 Retrieving Data and
Programme
 Automation
 Versatility (Flexible)
 Consistency
 Communications
ComputerIntroduction.ppt
Hardware/Software
• Computer Hardware
Parts of computer, which can be touch is called hardware.
(Physical Parts)
 Monitor
 CPU
 Key Board
 Mouse
 Speaker
• Computer Software
Parts of computer, which can not be touch is called software.
• Operating System Software : Windows, MAC, Linux
• Application Software : MS Office, Photoshop, Media Player
• Internet Browser Software : Internet Explorer, Google Chrome,
Mozilla Firefox, etc.
Classification of Computers
 Personal computer :
 A single-user computer
 Can be useful at School, Home, etc.
 Known as Micro Computer
 Laptop, Desktop
 Workstation :
 A powerful, single-user computer.
 A workstation is like a personal computer, but it has a more powerful
microprocessor
 higher-quality monitor.
 Can be found in companies etc.
 Minicomputer
 A multi-user computer
 Capable of supporting from 10 to hundreds of users simultaneously.
 Can be found in banks, government departments etc.
 Mainframe
 A powerful multi-user computer
 Capable of supporting hundreds or thousands of users simultaneously.
 Supercomputer
 An extremely fast computer
 Can perform hundreds of millions of instructions per second
 Weather, scientific research can be done by these types of computer.
Applications of Computer
• Science research
• Education
• Business applications
• Banking
• Office Automation
• Desktop publishing
• Management aids
• Engineering designing
• Road traffic control
• Railway
• Medicine
• Information services
What is Internet
 Inter connection of many computers via network.
 Global connected through network (through LAN or WAN)
 To provide the various application services i.e. E-Mail, Usenet (News),
WWW, Telnet, FTP, etc
 At any time millions user connected to the internet from many countries.
Uses of Internet
 Searching
 E-mail service
 Commercial Services
 Electronic books & Publication
 Video Conferencing
 Sharing data and results quickly
 Retrieving files & Program of all types
 Find information databases and tutorials
 News paper columns
 Banking
 Downloading / Uploading any information
 News, sports, stocks, music etc.
 Use of internet in various fields like education, Business, governance, etc.
 And many more ………………..
Useful Keys Internet
• Network: Connecting computers with each other For exchanging
information
• Client : It is a programme or computer for getting special
information from another compute.
• Server: It is a programme or computer, which gives information
to the client computer.
• Protocol: It’s a rules for connecting to the internet. (TCP/IP)
• Portal: It is a website. Known as a gateway of internet.
(Search engine)
22/09/2023 13
Router: It is a device, which decides where data will be send
(Network point)
www : World Wide Web
Browser: It is a programme which helps us to use internet
Website: Group of different web pages.
URL : Universal Resource Locator
.com : Commercial organization
.net : Large Networks
.gov : Government organization
.org : non-profit making organization
.edu : educational organization
.mil : military organization
.in : India
.au : Australia
.us : United States
.uk : United Kingdom
Types of Website (Domain No.)
Thank You
1 de 16

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ComputerIntroduction.ppt

  • 1. Fundamentals for Better Communication Through Computer By P. H. Prajapati Extension Education Institute AAU, Anand
  • 2. What is Computer ?  Computer is an electronic device.  Can store large amounts of data.  Can performing operations on data.  Performing given function on the data & displays the result as output.  Process data whenever needed.  Known from ‘to compute’
  • 3. What is Process?  Computer works on data as per programme is called process.  Processing means operations like…..  Calculations,  Logical decision making,  Outputting data,  Communicating with others computer etc.
  • 4. History of Computers  First(1945-1955): Used vacuum tubes. Were very large. Generated immense heat. Very expensive.  Second(1955-1965): Used transistors. Continued to be large and expensive.  Third(1965-1975): Used integrated circuits. Significant reduction in size and cost  Fourth(1975-1995): Uses Very Large Scale Integration. Desktop computers would not have been possible without VLSI. It used Microprocessor minimizing the size of P.C.  Fifth (in progress): Will provide us with Artificial intelligence. Also called knowledge information processing system
  • 5. Characteristics of Computer  Speed  Arithmetical and Logical Operations  Accuracy  Reliability  Storage  Retrieving Data and Programme  Automation  Versatility (Flexible)  Consistency  Communications
  • 7. Hardware/Software • Computer Hardware Parts of computer, which can be touch is called hardware. (Physical Parts)  Monitor  CPU  Key Board  Mouse  Speaker • Computer Software Parts of computer, which can not be touch is called software. • Operating System Software : Windows, MAC, Linux • Application Software : MS Office, Photoshop, Media Player • Internet Browser Software : Internet Explorer, Google Chrome, Mozilla Firefox, etc.
  • 8. Classification of Computers  Personal computer :  A single-user computer  Can be useful at School, Home, etc.  Known as Micro Computer  Laptop, Desktop  Workstation :  A powerful, single-user computer.  A workstation is like a personal computer, but it has a more powerful microprocessor  higher-quality monitor.  Can be found in companies etc.
  • 9.  Minicomputer  A multi-user computer  Capable of supporting from 10 to hundreds of users simultaneously.  Can be found in banks, government departments etc.  Mainframe  A powerful multi-user computer  Capable of supporting hundreds or thousands of users simultaneously.  Supercomputer  An extremely fast computer  Can perform hundreds of millions of instructions per second  Weather, scientific research can be done by these types of computer.
  • 10. Applications of Computer • Science research • Education • Business applications • Banking • Office Automation • Desktop publishing • Management aids • Engineering designing • Road traffic control • Railway • Medicine • Information services
  • 11. What is Internet  Inter connection of many computers via network.  Global connected through network (through LAN or WAN)  To provide the various application services i.e. E-Mail, Usenet (News), WWW, Telnet, FTP, etc  At any time millions user connected to the internet from many countries.
  • 12. Uses of Internet  Searching  E-mail service  Commercial Services  Electronic books & Publication  Video Conferencing  Sharing data and results quickly  Retrieving files & Program of all types  Find information databases and tutorials  News paper columns  Banking  Downloading / Uploading any information  News, sports, stocks, music etc.  Use of internet in various fields like education, Business, governance, etc.  And many more ………………..
  • 13. Useful Keys Internet • Network: Connecting computers with each other For exchanging information • Client : It is a programme or computer for getting special information from another compute. • Server: It is a programme or computer, which gives information to the client computer. • Protocol: It’s a rules for connecting to the internet. (TCP/IP) • Portal: It is a website. Known as a gateway of internet. (Search engine) 22/09/2023 13
  • 14. Router: It is a device, which decides where data will be send (Network point) www : World Wide Web Browser: It is a programme which helps us to use internet Website: Group of different web pages. URL : Universal Resource Locator
  • 15. .com : Commercial organization .net : Large Networks .gov : Government organization .org : non-profit making organization .edu : educational organization .mil : military organization .in : India .au : Australia .us : United States .uk : United Kingdom Types of Website (Domain No.)