this first unit our goal is to have you understand how information is
represented electronically and how computers manipulate it in this form. To
accomplish this you will learn the answers to these questions:
you complete this unit you’ll be able to explain these things clearly
to another person in non-technical terms. This chapter also has a
practical side. What are some of the most popular computing devices in
the world today? The answer is tablet computers, a grown up version of
the smart cell phone and iPod--sometimes called "phablets" as phones
and tablets merge into one device. We look at the way these devices
mushroomed in popularity since the invention of the iPad in 2010. We
also look at the similarities and differences between tablet computers
and e-readers that can store hundreds of books and let you read them.
Last we look at some of the unique terminology of modern computing:
the words used to describe computer speed, capacity, and
- How is communication achieved by "signalling?"
- What advantage do alphabetic languages have over pictographic languages?
is the basic element of digital electronic information representation?
do we use groups of on/off patterns ("bits") to represent
characters in a language?
do we store digital information?
do computers manipulate (record, “read”,copy, move, display and print)
do computers accomplish what they do?
- What is an algorithm?
- How does "information technology" involve much more than just "programming" ?
- What does the professional ethics of information technology embrace?
web page was last revised April 7, 2018. If you have any problems
using this page or discover any broken links, please text or call Jim
Janossy at (872) 205-0642 or email email@example.com.
reading and viewing in Contemporary Computing, 4th editionLearn
about each topic by reading the page in the workbook. Each underlined
page number below is an active hyperlink to a video mini-lecture or other
web learning resource; each hyperlink leads to required viewing.
Click here to download a printable Unit 1 Summary Form (USF) for optional (ungraded) note-taking use.
In the beginning 4
One if by land, two if by sea 5
(this video is optional)
information with signals 6
the possibilities 7
and alphabets: pictographic writing 8
writing is more flexible 9
English alphabet represented in binary code 10
bit patterns for letters, numbers, and punctuation 11
information created in ASCII form? 12
and the "stored program" concept 13
manipulates electronic charge bits? 14
stored as bits can be copied or moved! 15
digital information is organized in files 16
avalanche of tablet computers begins 17
technology definitions 19
"size" prefixes in the world of computers 23
Technology (IT) careers 24
of the information technology industry 25
How to organize a factual comparison 26,
about your repeatable online exercises 28
1 question content for note-taking 29-33 (Download and
print these to use to keep notes of your responses; this can help you
be more productive in repeating the exercise to achieve 100%!)
and advice about the learning exercises 33
must read and view ALL PROJECTS even though all may not be assigned!)
- Project 1.1 - Communicating in ASCII 35 video download form
- Project 1.2 - Comparing tablet computers and "netbooks"
- Project 1.3 - The universal .csv file format 37 video download file
- Project 1.4 - Memory: RAM, disk, USB flash 38, 39
- Project 1.5 - E-books: do you really need an e-reader?
44 video form book site
online Exercise 1
the exercise system at this link; the first time, you will have to
create a free account for yourself and establish your own password.
Projects 1.1, 1.2, and 1.3 are required
(and one more Unit 1 project of your
choice can be done for extra credit)
(C) 2018 James Janossy - All rights reserved