Memory Expansion - Texas Instruments TI-99/4A User Manual

Memory expansion is another option that is
available for your computer Before purchasing
additional memory, however, you should con
sider your needs to determine if the memory is
actually needed. Unlike many other computers
in its price class, the Tl-99/4A comes equipped
with 16K of memory The 16K about 16,000
characters of available memory is enough for
most home and educational uses.
If you are programming in BASIC, you need 2K
to 8K of memory for the average simple home fi
nance program. A program to perform practice
exercises in addition or subtraction may use from
4K to 10K
If you use cartridge software, each cartridge
contains an additional 30K of memory that is
used by the cartridge program. While you can
not access the memory in a cartridge from a
-
BASIC program, this memory is used by the car
tridge software to perform various functions.
Much of the available software for the Tl-99/4A
does not require the use of any additional mem
ory. So, for most applications, you should not
need additional memory in your computer
Some business applications and advanced
programming languages do require additional
memory For those applications, you need a
memory expansion card. The TI Memory Expan
sion Card about $300 plugs into the TI Periph
eral Expansion System and adds 321< about
32,000 characters of memory to the computer
MEMORY EXPANSION
Texas Instruments Expansion Syitem
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