( 
( 
If 
you 
detect 
an error 
in 
a line 
after 
you 
press EXECUTE 
to 
enter 
the 
line, you can 
use 
the 
scroll 
up 
or 
scroll down key 
to 
position 
the 
line 
to 
be corrected, 
then 
use 
the 
procedures above 
to 
correct 
the 
error. 
If 
you 
want 
to 
change an entire line, you can simply 
enter 
the 
statement 
number 
of 
the 
line, 
then 
reenter 
the 
line and press EXECUTE.  The new line will  replace 
the 
old line. 
If 
you 
want 
to 
delete 
one 
or 
more program lines, 
enter 
the 
statement 
number 
of 
the 
line you want 
to 
delete, 
then 
enter 
DEL and press  EXECUTE.  To delete several 
successive lines, 
enter 
the 
number 
of 
the 
first line, 
enter 
DEL, 
enter 
the 
number 
of 
the 
last line, 
then 
press EXECUTE.  For example, 
to 
delete lines 
20 
through 
90 
in 
a program, enter: 
20 
DEL 
90 
then 
press EXECUTE.  Note 
that 
DEL 
is 
invalid while entering a key 
group 
(see 
Function Keys 
in 
Chapter 2). 
5100 STORAGE CAPACITY 
The base 
5100 
(Model 
B1) 
has a storage capacity 
of 
16K (K=1,024 bytes). 
Figure 5 shows how this storage 
is 
allocated 
to 
various requirements.  Note 
that 
the 
work area available 
to 
the 
user 
is 
approximately 
12,000 
bytes, while 
4,000 
bytes are required for internal purposes.  The storage capacity 
is 
increased 
in 
the 
following models of 
the 
5100: 
Model  B2 -
32K 
Model  B3 -
48K 
Model 
B4 
- 64K 
In 
these models, 
all 
additional storage 
is 
allocated 
to 
the 
user work area. 
For 
example, on 
the 
Model  B4, 
the 
user work area 
is 
approximately 
60,000 
bytes. 
11,000 Bytes 
User Work Area 
(data and programs) 
~-----------------
1,000 Bytes 
Suggested 
1M 
F Area 
(see 
Patch Command, Chapter 
2) 
4,300 
Bytes 
(5100 internal  requirements) 
Figure 
5. 
Storage Allocation for a 
16K 
5100 
7