Comp4 Unit1c Lecture Slides

Introduction to Information and Computer Science

Basic Computing Concepts Including History

Lecture cThis material (Comp4_Unit1c) 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.

Introduction to Information and Computer Science

Learning 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

Introduction to Information and Computer Science Basic Computing Concepts

Including History Lecture c

Options for Computer SystemsHome/Business User (2011)

• Laptop with a budget of under $1,000– 15 inch monitor– Dual core processor– 4 - 8 GB RAM– 500 - 750 GB hard drive– DVD Burner

Laptop (Public domain, nd.)

3Health IT Workforce Curriculum Version 3.0/Spring 2012



Other Options for Laptops• Hard Drive

– Traditional hard disk drive• Inexpensive• Moving platter

– Solid state drive• No moving parts, cooler• Faster in some cases• More expensive

• Optical drives– DVD no longer standard on laptops– Blu-ray drives are available




Other Options for Laptops• Network

– Modem– Ethernet – Wireless– Bluetooth– Mobile broadband antenna

• Docking Station– Used to conveniently connect laptop to keyboard,

mouse, monitor, printer

• Extra battery• Travel mouse

Laptop docked to a docking station ( Betts, 2007)




Other Types of Laptops• Netbook/Ultraportable

– 9 to 12 inch display– No optical drive– Single or dual core

processor (can have low-voltage ULV CPU)

– Less than $300 - $800• Thin and Light

– 13 inch display– Dual core processor– MacBook– Around $1000

• Desktop replacement– 17 to 20 inch display– DVD/Blu-ray drive– Video Card– Low battery life– $1300+




Other Considerations for PCs• Warranty

– Usually 1 year for parts and labor– Repair on site vs. drop off– May need to keep boxes

• Internet Access– Have to select an Internet Service Provider

(ISP)– FiOS, DSL, cable are all options– May depend on what's available in your location




Other Considerations for PCs (continued)

• Security Software– Windows 7 has Defender– Add more from other vendors (Norton, McAfee)– Need anti-viral, anti-spyware, anti-adware

• Backing up– Software makes it easier to backup and restore– Can back up to external hard drive or DVD– Online services




Computer Systems for Healthcare Applications




• Vary depending on software requirements• Typical for EMR

– Server(s) hosts application, database– Local machine runs application (client)

• Need– Server(s)– Client PCs– Network connection

Selecting a Server




• Depends on application requirements and number of users

• Usually contains– High end processor/multiple processors– Large amount of RAM– Large amount of storage (RAID)– Connection to a fast network (multiple connections)

• May need– Database– Web server

Client PCs




• Desktops for fixed computer locations– Users who work at desks– Can be in exam room – Doesn't need wireless

• Laptops/netbooks for mobile computing– Users can have own computer– Take it to any clinical setting– Requires wireless– Limited battery life

Other Needs




• Scanners– Small footprint– ID card scanner

• Back up systems– Tape– Hard Drive– Online– May need offsite backup storage

• Internet Access• Security

– Network firewall– Security software for servers and clients

Very Important




• Keep up to date with new technology• Read reviews in current magazines (PC, PC World,

Computerworld, Computer Shopper, etc.)• Online sites provide latest information

http://reviews.cnet.com/http://www.tomshardware.com/http://www.extremetech.com/http://arstechnica.com/reviews/http://www.anandtech.com/http://techreport.com/

http://reviews.cnet.com/

http://www.tomshardware.com/

http://www.extremetech.com/

http://arstechnica.com/reviews/

Selecting a Computer

• Know your needs;• Set your budget;• Understand computer technology; and• Research latest products.





Summary – Lecture c

15

• Laptop computers are generally more expensive than desktops.

• There are many different sizes of laptops• Don’t forget the security software and to

regularly backup• Typical EMRs require servers and client

PCs

Health IT Workforce Curriculum Version 3.0/Spring 2012




References – Lecture cReferencesAnandTech Homepage. (n.d.). Retrieved December 3, 2011, from AnandTech website: http://www.anandtech.com/CNET Reviews. (n.d.). Retrieved December 3, 2011, from c|net website: http://reviews.cnet.com/ EMR Experts.

Selecting the right hardware configuration for your EMR. [cited 22 March 2011]; Available from: http://www.emrexperts.com/articles/emr-hardware-buying.php.

Extreme Tech Hompage. (n.d.). Retrieved December 3, 2011, from Extreme Tech website: http://www.extremetech.com/.

Laptop Buying Guide. CNET [serial on the Internet]. 2010 October 5; [cited 22 March 2011]; Available from: http://reviews.cnet.com/laptop-buying-guide/.

Reviews - What you need to know. (n.d.). Retrieved December 3, 2011, from ars technica website: http://arstechnica.com/reviews/.

The Tech Report Hompage. (n.d.). Retrieved December 3, 2011, from The Tech Report - PC Hardware Explored website: http://techreport.com/.

Tom's Hardware - The Authority on Tech Homepage. (n.d.). Retrieved December 3, 2011, from Tom's Hardware website: http://www.tomshardware.com/.





References – Lecture c (continued)ImagesSlide 3: Laptop. WP Clipart (nd.). http://www.wpclipart.com/computer/laptop/laptop_glossy.png.html . Retrieved

November 2011 from WP Clipart website: http://www.wpclipart.com. Public domain image.Slide 5: Laptop docked to docking station. Betts, E. (2007, January 15).

http://commons.wikimedia.org/wiki/File:Docking_station_2.jpg. Retrieved November 2011, from Wikimedia Commons website: http://commons.wikimedia.org. Public domain image.




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Comp4 Unit1c Lecture Slides