The later 129 used electronic circuit cards to store simple programs written by the keypunch operator.

To store more data and programs when the power is off, most computers use magnetic discs.

The Palm m500 also includes a slot for a Secure Digital expansion card, which can be used to store extra data and programs.

There they serve as librarians, storing various programs and data files that different people on the network want to use.

Servers store data and programs that will be shared and used by many different people.

Simatic is similar to a digital computer which can store and run programs.

ROM is used in personal computers to permanently store small programs that are frequently used.

The technique allowed the automatic reuse of blocks of memory that were storing unused programs and data.

They are not stored in separate external files like Java or C++ programs.

However, in the molecular scale, nano-robots lack such guidance system because individual molecules cannot store complex motions and programs.