| Examination
Questions (page 333) |
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1(a)
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1
B 2 E 3 A (in any order) |
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(b)
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Allocating
processing time between the terminals (i.e. time slicing).
Allowing the terminals to allow access to the same data held
on a database. |
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(c)
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Multitasking
operating systems allow more than one program apparently to
run at the same time. |
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2(a)
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Any
two from the following:
The title bar has been kept the same.
The same text style has been used for the instructions.
In each case there are instructions under the menus.
The 'back' button is in the same place in both screens.
The graphic is in the same place in both screens.
The same method is used for moving between the screens. |
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(b)
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(i) |
Any one from:
You can only select one item from the list supplied by the system.
You cannot close the screen.
You have to use buttons to make a choice. |
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(ii) |
Inexperienced users find it easier.
Users are prevented from using dates or places which are not
on the lists.
Because the user is only allowed to enter data which the system
supplies, there is no need for any validation.
It saves employee time or attracts customers. |
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(c)
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Any
two of the following changes:
The lists could be placed in alphabetical order so that items
are easier to find.
The buttons could be made bigger so that users would find it
easier to click on them.
The instructions for using the interface could be made clearer.
The list could be made longer so that more places are visible.
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(d)
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(i) |
In
the middle third of the screen. |
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(ii) |
As this is where the use looks the most. |
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(iii) |
In could be in a bright colour. It could flash. Sound could
be used. A larger font could be used. |
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3(a)
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Any
four from the following:
Icons-just have to click on them to issue a command.
Windows-can pull down lists of commands which prevents clutter
on the screen.
A mouse is used-easier to make selections than the keyboard.
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(b)
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Any
two from the following:
Speech recognition
Use of touch sensitive screens
Use of thought (eventually!) |
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(i)
(ii)
(iii) |
Any
three from these three groups:
Installation guide, information about what the program does,
help line information
Step-by-step guide to using the program
Data input and output details |
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4(a)
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Any
two from:
Interprets commands from the application software.
Manages the system resources such as memory.
Manages input and output of data.
Manages system security. |
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(b)
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Windows
95/98, Unix, MSDOS etc. |
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(c)
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Multitasking
means the ability of the operating system to run more then one
program at the same time. |
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5(a)
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Any
two from:
Much cheaper than having a program specially written
Takes less time to develop
Database package is more likely not to contain bugs. |
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(b)
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The program will be designed to do exactly what the user requires.
A database solution may not do exactly what they want it to
do. |
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6(a)
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An
icon is a small picture used to represent a command or action.
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(b)
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Any two from: Makes it easy for new users to understand; You
can just move the mouse onto the icon and click on it, so avoiding
the need to issue commands. Reduces errors that sometimes occur
when commands are typed. |
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(c)
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One
from Mouse or VDU. |
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7(a)
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One
where the user uses pull-down menus from which a command can
be issued by clicking on one of the items in a list. Saves having
to type in commands. |
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(b)
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Any two from:
You don't have to remember or type in commands
Easier for novice users to use
Do not need to worry about the syntax (i.e. the correct construction)
of commands. |
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8(a)
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A
windows environment makes use of icons, pull down menus, buttons
and you simply point to the item and click to make a selection. |
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(b)
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Any
two from:
You
do not have to remember the structure of commands.
Once
you are familiar with one windows environment, then the others
are very similar.
You
do not have to worry about typing or spelling mistakes in the
commands.
It
is faster to click than to issue a command. |
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9(a)
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Any
two from:
The
packages is ready immediately so no need to wait.
It
will be cheaper because the cost can be spread across lots of
customers.
It
will be tried and tested. |
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(b)
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Any
two from:
It
may not do exactly what is required.
May
need to change your system to suit the software. |
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10(a)
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Any
two from:
click
on icons
click
on buttons
click
on items from pull-down menus. |
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(b)
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Press
a particular key to make a selection.
Move a highlight bar to make a selection. |
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(c)
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Type
in the required command. |
