Chapter 1 Information Technology (IT)
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Transcript of Chapter 1 Information Technology (IT)
Chapter 1Information Technology (IT)
The College of Saint RoseCIS 111 – Introduction to Computer ScienceDavid Goldschmidt, Ph.D.
from Fluency with Information Technology, 4th edition by Lawrence Snyder, Addison-Wesley, 2010, ISBN 0-13-609182-2
The language of IT
Learn the language of IT Acronyms Jargon Metaphors
Don’t fall behind! Technology (and its language) evolves
rapidly
Hardware
What’s the difference?
Plugging it all in
Where’s the computer?
Cool hardware
Cooler hardware
Even cooler hardware
What are you looking at?
Each bit can also be thought of as a pixel Each pixel contains 24 bits to represent
colors
Colors
Virtual buttons
Following the mouse pointer
Where exactly is the button?
We need to know the size (dimensions) of the button, too
Random Access Memory (RAM) Retrieve any data directly via
random access Sequential access is slow (e.g. cassette
tapes)
Hard drives
Traditional (mechanical) hard drive
What are solid-state drives? Are they better?
Are hard drives random or sequential access?
Know IT
Read Chapter 1
Do all of the Multiple Choice and Short Answer questions