Comp4 Unit1b Lecture Slides

Introduction to Information and Computer Science

Basic Computing Concepts Including History

Lecture bThis material (Comp4_Unit1b) was developed by Oregon Health and Science University, funded by the Department of Health and Human

Services, Office of the National Coordinator for Health Information Technology under Award Number IU24OC000015.

Basic Computing Concepts Including HistoryLearning Objectives

2

• Define what a computer is (Lecture a)• Describe different types of computers, including PCs,

mobile devices and embedded computers (Lecture a)• Define the common elements of computer systems

(Lecture a)• Describe the various hardware and software options for

typical desktop, laptop and server systems for home and business use with a focus on healthcare systems (Lectures b and c)

• Explain the development of computers and the Internet, including healthcare systems, up until the present time. (Lecture d and e)

Health IT Workforce Curriculum Version 3.0/Spring 2012

Basic Computing Concepts Including History Introduction to Information and

Computer Science Lecture b

Selecting a Computer• There is not one "best" computer• Depends on needs

– Users– Applications– Storage– Mobility– Budget

• Can change quickly due to frequent improvements in technology and price

3Health IT Workforce Curriculum Version 3.0/Spring 2012



Shopping cart (WPClipart, nd.)

Selecting a Computer

• Determine your budget• Look at the requirements for the applications you

need to run• Determine how much storage you will need• Research online using up to date reviews and

buying guides




Money (Public domain, nd.)

Options for Computer SystemsHome/Business User (2011)

• Desktop with a budget of $1,000 (doesn't include monitor)– Quad core processor (4 processors)– 8 GB of RAM– Discrete graphics card– 500 GB – 1 TB hard drive– Blu-ray or DVD drive with burner– Latest OS

(Windows 7 or Mac OS X Snow Leopard)• Upgrades available for more memory, faster

graphics card




Other Options for Desktops• Case

– Tower– All in one– Small form factor

• Video Card– Integrated video on cheaper chips– More expensive, discrete video card with own

graphics memory speeds video




Tower Case (GIGA-BYTE TECHNOLOGY CO., LTD, nd.)

(left) All in One (© Apple, nd.)(right) Small Form Factor Case (© Apple, nd.)

Other Options for DesktopsMonitors

• Most are LCD panels (TN, VA, IPS)• Size (20, 22, 24 inches)• Aspect Ratio (4:3, 16:10, 16:9)• Brightness (more for movie and games)• HDMI and DVI connections• USB ports• Ergonomic adjustmentsBottom line: test the monitor for what you want to

do with it.




LCD Monitor (Public domain, nd.)

Other Options for DesktopsPrinters

• Ink jet printer– Inexpensive, slow– Affordable color printing– Good for home use

• Laser printer– More expensive– Fast, handle many jobs– Color much more expensive than black and white

• All-in-One– Printer, copier, scanner, fax

• Portable ink jet printer– Battery or car charged




Printer (Public domain, nd.)

Printer Specifications




• Resolution– Measure in DPI– 600 x 600 DPI means 600 dots across by 600 dots down in one

square inch– Higher resolution means sharper, more detailed output

• Print Speed– Measure in pages-per-minute (PPM)

• Connectivity– USB– Wireless– Ethernet for group printing

• Cost to print– Cost of cartridge– How frequently need to change

Other Options for Desktops• Speakers

– Basic integrated speakers or cheap 2 speakers

– 2:1 or 5:1 (# satellite speakers: 1 subwoofer)• Keyboard/mouse

– Wireless available




Wireless optical mouse (Public domain, nd.)

Basic Computing Concepts Including History

Summary – Lecture b

11

•Selecting a new computer depends on:– Application needs– Storage needs– Budget

•Consider options– Case– Video card– Monitors– Printers

•Research online for latest pricing

Health IT Workforce Curriculum Version 3.0/Spring 2012



Basic Computing Concepts Including HistoryReferences – Lecture b

References

•Desktop Buying Guide. CNET [serial on the Internet]. 2010 March 24; [cited 22 March 2011]; Available from: http://reviews.cnet.com/desktop-computer-buying-guide/.•Franklin, Eric. Monitor Buying Guide. CNET [serial on the Internet]. 2010 December 20; [cited 22 March 2011]; Available from: http://reviews.cnet.com/monitor-buying-guide/.•Printer Buying Guide. CNET [serial on the Internet]. 2009 Nov 21; [cited 2011 22 Mar]; Available from: http://reviews.cnet.com/printer-buying-guide/?tag=centerColumnArea1.0;buyAdvice.




https://mail.ohsu.edu/owa/redir.aspx?C=d0c83e7b1f2247c9a18b2850ba3428ae&URL=http://reviews.cnet.com/desktop-computer-buying-guide/

https://mail.ohsu.edu/owa/redir.aspx?C=d0c83e7b1f2247c9a18b2850ba3428ae&URL=http://reviews.cnet.com/monitor-buying-guide/

Basic Computing Concepts Including HistoryReferences – Lecture b (continued)

ImagesSlide 6: Gigabyte 3D Mercury (Black) Computer Chassis (Tower Case.). GIGA-BYTE TECHNOLOGY CO., LTD.

(n.d.). http://commons.wikimedia.org/wiki/File:Gigabyte_3D_Mercury_(Black).jpeg. Retrieved November 2011, from Wikimedia Commons website: http://commons.wikimedia.org . The copyright holder of this work allows anyone to use it for any purpose including unrestricted redistribution, commercial use, and modification.

Slide 6: Núverandi 2007 Intel iMac (All in one). Nelson, R. (2007, August 17). http://en.wikipedia.org/wiki/File:Imac_2007.png. Retrieved November 2011, from Wikipedia: The Free Encyclopedia website: http://en.wikipedia.org

This file is licensed under the Creative Commons Attribution 2.0 Generic license.Slide 6: Mac mini with Intel Core processor (small form factor case). Lawrence, C. (2006, December).

http://commons.wikimedia.org/wiki/File:Mac_mini_Intel_Core.jpg . Retrieved November 2011 from Wikemedia Commons website: http://commons.wikimedia.org. This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license.

Slide 7: LCD Monitor. Public Domain (nd.). http://www.wpclipart.com/computer/hardware/monitors/monitor_6.png.html. Retrieved November, 2011 from WPClipart website: http://www.wpclipart.com/. Public domain image.

Slide 8: Printer. Public Domain (nd.). http://www.wpclipart.com/computer/printer/printer.png.html. Retrieved November, 2011 from WPClipart website: http://www.wpclipart.com/. Public domain image.




Comp4 Unit1b Lecture Slides

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