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  • 1.  
  • 2. Mainframe Computer Used to process large amounts of information quickly. Extremely large.
    • Applications
    • Government departments
    • Airline industry
    • Weather forecasting
    • Commerce (banks)
  • 3. Mainframe Computer Processor 1 Processor 2 Processor 4 Processor 3 Contains several very fast processors. Large tasks are shared between the processors (known as multi-processing ). Task
  • 4. Mainframe Computer Processor 1 Processor 2 Processor 4 Processor 3 Contains several very fast processors. Or each processor can be given a separate task to do. Task Task Task Task Task Task Task Task
  • 5. Mainframe Computer RAM can be up to several terabytes. Backing storage is provided via hard disk packs, and backed up to tape.
  • 6. Mainframe Computer Users connect to the mainframe via a dumb terminal which has no processor or memory.
  • 7. Desktop Computer Used by an individual at work, school or home.
    • Applications
    • Word processing
    • Graphics
    • Database
    • Spreadsheet
    • Internet
    • Email
    • Games
    • etc.
  • 8. Desktop Computer Originally contained a single processor, but many desktop computers now have dual or quad processors.
  • 9. Desktop Computer Originally contained a single processor, but many desktop computers now have dual or quad processors Processor speed From 1.6GHz to 3.5GHz
  • 10. Desktop Computer Originally contained a single processor, but many desktop computers now have dual or quad processors Processor speed From 1.6GHz to 3.5GHz Memory From 2GB to 8GB
  • 11. Desktop Computer Originally contained a single processor, but many desktop computers now have dual or quad processors Backing storage Hard disk drive - 80Gb to 1Tb CD-RW disk - 850Mb DVD-RW disk - 4.7Gb Processor speed From 1.6GHz to 3.5GHz Memory From 2GB to 8GB
  • 12. Desktop Computer Originally contained a single processor, but many desktop computers now have dual or quad processors Backing storage Hard disk drive - 80Gb to 1Tb CD-RW disk - 850Mb DVD-RW disk - 4.7Gb Input / Output devices Keyboard, mouse, printer, monitor, microphone, speakers, scanner, digital camera. Processor speed From 1.6GHz to 3.5GHz Memory From 2GB to 8GB
  • 13. Laptop Computer Same applications as a desktop computer, but it is portable. Similar processors, memory and backing storage as found in a desktop computer. Generally laptop computers have a slightly lesser specification than desktop models. The price of an average laptop = much more powerful desktop.
  • 14. Palmtop Computer Used by an individual while on the move. Also know as PDAs (Personal Desktop Assistants) or Handheld Computers .
    • Applications
    • Word processing
    • Sketchpad
    • Diary
    • Notes
    • Email
    • Database
    • Spreadsheet
    • etc.
  • 15. Palmtop Computer Palmtop processor speeds range from 100 MHz to 1 GHz. Memory ranges from 32MB to 512MB.
  • 16. Smartphones and Tablets Since the launch of the iPhone in 2007, the line between palmtops and mobile phones has blurred. A mobile phone which can surf the net and run other applications is known as a Smartphone . In 2010 Apple launched the iPad heralding another new category of device – the Tablet .
  • 17. Embedded Computer Used to control dedicated systems.
  • 18. Credits
    • Higher Computing – Computer Structure – Types of Computer
    • Produced by P. Greene for the City of Edinburgh Council 2004
    • Adapted by M. Cunningham 2010
    • All images licenced under Creative Commons 3.0
    • Mainframe Computer by Dave Winer (scrtiptingnews on Flickr)
    • IBM Mainframes by Tom Purves
    • Hard disk pack by Barry Demchak, Torrey Pines Software, Inc
    • VIA VB8003-Top-heatsink by viagallery.com
    • Intel Core i5 by Flutlicht PR on Flickr
    • 1GB DDR3 Memory Module by William Warby (wwarby on Flickr)
    • Logitech MX518 Gaming Mouse by gcg2009 on Flickr
    • Sony Compact Digital Camera by Digitpedia.Com
  • 19. Credits
    • Higher Computing – Computer Structure – Types of Computer
    • Produced by P. Greene for the City of Edinburgh Council 2004
    • Adapted by M. Cunningham 2010
    • All images licenced under Creative Commons 3.0
    • Apple Keyboard by Declan Jewell
    • TT2 Laptop by KIE HPI
    • ESOM270_eSOM300_Computer_on_Modules by Lakshmin
    • LG Washing Machine by LGEPR
    • Sharp Carousel Microwave by Chris Kelly
    • BMW 750Li by Paul Tan