Transcript
Fluency with Information Technology
Exploring the Human-Computer Interface:
Face It, It’s a Computer
2.1 True/False
1) The most common form of feedback is the indication that the computer is continuing to perform a time-consuming operation.
Answer: TRUE
2) When the completion time of a computer operation can be predicted, applications typically show an hourglass icon.
Answer: FALSE
3) A way in which product developers who create technologies minimize learning time is by creating controls that match our expectations, such as with sliders and dials.
Answer: TRUE
4) When an operation is processing a series of inputs, the “completion count” gives the tally of the completed instances, or equivalently, the number remaining.
Answer: TRUE
5) Applications, especially from the same vendor (e.g., Microsoft, Google, or Apple), are consistent.
Answer: TRUE
6) The primary reason for consistency across computer applications is that certain operations are fundamental to processing information no matter what the application.
Answer: TRUE
7) All digital information is grouped into types, based on the number of binary digits needed to represent the information.
Answer: FALSE
8) Finding errors in software is easy, but diagnosing the cause is difficult.
Answer: TRUE
9) When we install a new app, we immediately and intuitively perform two important activities: “clicking around” and “blazing away.”
Answer: TRUE
10) Blazing away is justified by the consistent interface, while clicking around is justified because running software can’t break the computer.
Answer: FALSE
11) Relying on 0s and 1s in representing digital information results in a great disadvantage in creating reproductions.
Answer: FALSE
12) Perfect reproduction is a property of analog information.
Answer: FALSE
13) The Placeholder Technique is used to “hide” part of the text that you don’t want to tamper with when using Find/ReplaceAll (F/RA).
Answer: TRUE
14) Many desktop applications, regardless of vendor, share basic features, such as a File menu and an Edit menu, and furthermore, the items within these menus include the same operations.
Answer: TRUE
15) The Alto personal computer, created by the Xerox Palo Alto Research Center (PARC), was the first computer with a Graphic User Interface (GUI).
Answer: TRUE
16) Due to its affordability, Xerox manufactured mass quantities of the Alto personal computer for businesses.
Answer: FALSE
17) Because the Xerox’s Alto was targeted at businesses, the metaphor the PARC researchers chose for the GUI was a desktop.
Answer: TRUE
18) Following the introduction of Apple Macintosh and Microsoft Windows, the desktop metaphor became the universal way most people thought of using a computer.
Answer: TRUE
19) Apple invented the mouse, and the Macintosh first introduced the mouse technology to the public.
Answer: FALSE
20) The placeholder technique is a two-step process: hide and restore.
Answer: FALSE
Explanation: The three operations are hide, edit, and restore.
21) Metaphors are essential to computer usage because they guide us in learning and using software.
Answer: TRUE
2.2 Multiple Choice
1) To indicate that the computer is continuing to perform a time-consuming operation, the cursor is replaced by an icon such as a(n):
A) hourglass
B) rainbow spinner
C) little dog running
D) all of the above
Answer: D
2) Exiting and relaunching an application after making a mistake is called:
A) getting out and getting back in
B) shutdown
C) fatal abort
D) system interrupt
Answer: A
3) Perfect reproduction is a property of:
A) analog information
B) source information
C) digital information
D) target information
Answer: C
4) Placeholders can be inserted throughout your work for all long, commonly occurring phrases, and the placeholders can later be changed easily using:
A) Find/ReplaceAll (F/RA)
B) Copy/Paste/Edit (C/P/E)
C) Copy/Paste (C/P)
D) metaphors
Answer: A
5) A structure without any properties or content is:
A) information
B) an instance
C) a shortcut
D) a record
Answer: B
Explanation: B) You can add content to an instance. In general, when an example of something, say a file, exists, it is an instance of that type.
6) Which metaphor features file cabinets and wastebaskets as typical components?
A) office metaphor
B) touch metaphor
C) Windows metaphor
D) desktop metaphor
Answer: D
7) Which of the following is an example of the computer providing feedback to the user?
A) Editing changes become visible on the screen.
B) The cursor changes to indicate an operation is in progress.
C) A progress bar shows how much of the work is done.
D) All of the above
Answer: D
Explanation: D) All of the above are good examples of the GUI providing feedback to the user.
8) The mouse was invented by:
A) Steve Jobs and Steve Wozniak at Apple
B) Bill Gates at Microsoft
C) Douglas Engelbart and others at Stanford Research Institute
D) Aung San Suu Kyi in Burma
Answer: C
9) A familiar example of the touch metaphor is:
A) a standard keyboard entry
B) a mouse click selection
C) the Cover Flow mechanism
D) all of the above
Answer: C
10) The gesture described as a quick sweep with the finger leaving the surface is known as a:
A) sweep or swipe
B) drag
C) flick
D) tap
Answer: C
11) The gesture that is typically used to launch an application is a:
A) double tap
B) drag
C) flick
D) two-finger sweep
Answer: A
12) The touch metaphor is truly a new metaphor because it:
A) replaces the mouse with a touch-sensitive screen
B) represents the screen differently with content pushed around
C) enables simple navigation techniques
D) all of the above
Answer: B
13) Which of the following is not an advantage of using Copy/Paste/Edit?
A) It is faster.
B) It works well if the copied content is mostly similar to the desired final content.
C) It is more accurate.
D) It allows the user to recreate the formatting from scratch.
Answer: D
14) In relation to Copy/Paste/Edit, which of the following terms refers to information before it is transformed or edited to a new form?
A) target value
B) source value
C) final value
D) original value
Answer: B
15) In relation to Copy/Paste/Edit, which of the following terms refers to the intended result of transforming or editing information?
A) target value
B) source value
C) final value
D) original value
Answer: A
16) The placeholder technique:
A) involves a triple substitution using find-and-replace
B) uses a unique token as the placeholder
C) requires the use of #
D) more than one of the above
Answer: D
Explanation: D) Both A and B are involved when using the placeholder technique.
17) The New and Open commands are normally located on the:
A) File menu
B) Edit menu
C) Shortcut menu
D) Main menu
Answer: A
18) When editing, which method allows the user to reproduce content from another location?
A) typing or drawing the content
B) Copy/Paste (C/P)
C) Find/ReplaceAll (F/RA)
D) Find
Answer: B
2.3 Short Answer
1) Any piece of information of a particular type is called a(n) ________.
Answer: instance
2) ________ refers to exploring the user interface in order to learn more about it.
Answer: Clicking around
3) With ________ information, encoding required that all original work had to be kept as a “master” from which copies were made for the public.
Answer: analog
4) Trying out new or unfamiliar features without a clear idea of what they will do is called ________.
Answer: blazing away
5) ________ is information encoded as a sequence of binary digits, 0’s and 1’s.
Answer: Digital information
6) ________ information comes from or is stored on a continuously variable medium.
Answer: Analog
7) ________ is a quality that allows exact copies to be made.
Answer: Perfect reproduction
8) The ________ is a searching algorithm in which strings are temporarily replaced with a special character to protect them from change by other substitution commands.
Answer: placeholder technique
9) When using Windows applications, ^C (Ctrl+C) is the shortcut for the _______ command.
Answer: Copy
10) A(n) ________ is an icon or image used as representative or symbolic of a computation.
Answer: metaphor
11) The ________ metaphor is a metaphor for interacting with computers implementing the idea of moving the information.
Answer: touch
12) The floppy diskette icon is a metaphor for saving and writing information to ________.
Answer: external storage
