Earlier Models of The Datalink Series
The earlier Datalink models were the Datalink 50, Datalink 70, Datalink 150 and Datalink 150s where the "s" indicated the size of the model as small and it was designed as a lady's watch. The 150 and 150s models are essentially the same except that the 150s, having a smaller display, has different display addresses from the 150 and thus it needs its own programming code.
The programming code is provided in the Timex Datalink software v 2.1 for all models. These watches were programmed using the same software and computer GUI. To download the settings to these early models the user was prompted to choose the relevant watch model number.
However the menu choices were the same for all models. The only difference was the amount of available memory in the watches and the number of phone numbers, appointments, lists etc. which could be downloaded to each model.
At the time of their introduction, these watches were known as "PIM" watches, i.e. personal information managers. Bill Gates was known as an owner of one.
The model number indicated the maximum number of phone numbers that could be downloaded to the watch. For example, the model 150 could store a maximum of 150 phone numbers. The actual number of downloadable phone entries decreased in relation to the other information which was to be downloaded such as appointments, anniversaries, lists, wristapps and watch sounds. These models lacked timers or chronographs of any kind but a simple chronograph could be added as an external application also known as a wristapp. The wristapps also included a notepad capable of storing forty words.
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