#A Break

"From the

"Keyboard
%w
%r 13 e

As you can see, using a computer isn't

so difficult after all.

Press RETURN to find out why some

programs are especially easy to use.
%w
#Friendly

$versus

"Unfriendly
%w
%r 13 e

A program that gives clear instructions

and responds reasonably if you make a

typing error is called "friendly."

Such programs are easy to use.


Press RETURN to see a friendly question.
%w
%r 13 e
Try making mistakes on purpose to see
how a friendly question handles errors.
%@ 2 17
Please type a number from 1 to 4,
%@ 2 18
then press RETURN.
%@ 2 19
>
%b 1 39 17 21 5 @ 4 19
%c 0
Press RETURN when you finish.
Please type something.
0 is too small. Please try again.
&0 is too large. Please try again.
Please try again using only digits.
%ec
%w
%@ 2 21
Thank you.
%r 23
Please press RETURN to go on.
%w
%r 13 e
At the other end of the scale are the

"unfriendly" programs.  They give

unclear instructions and don't tell you

how to correct your errors.


                             Press RETURN to see an unfriendly
question.
%w
%r 13 e
Here is an extreme example of a
very unfriendly question.
%@ 2 17
Input the number
%@ 2 19
>
%b 1 35 17 21 2 @ 4 19
%w
%@ 4 21
NO! You're wrong!
%w
%r 23
(Disgusting, isn't it?)
%w
%r 12 e

Of course, no program can be perfectly

friendly (much less perfect), but

good programs make an effort to

cooperate with you in getting your job

%w
done.  But what if a program doesn't

seem to cooperate with you?
%w
done.
%w
%r 12 e
Remember when we capitalized your

first name way back when?  That was an
%w
%r 12 e
Remember our attempt to capitalize

your first name?  That was an
%w

example of this program making a

sterling effort to help you.  But what

if a program seems bent on fighting you?
%w
%The

%Four

$Steps
%w
%r 12 e
1. Check your typing.  Everyone makes
#misteaks ocassionally. (See?)

2. Lock the CAPS LOCK key down.
#Some programs require you to type
#everything in capital letters.

3. Check the program manual. The dis-
                        #played instructions may be unclear.

4. Seek help from someone who knows
#how the program works.
%end

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