The original Black Berry device had a monochrome display while newer models installed color displays.
On November 8, the Black Berry board rejected proposals from several technology companies for various Black Berry assets on grounds that a break-up did not serve the interest of all stakeholders, which include employees, customers and suppliers in addition to shareholders, said the sources, who did not want to be identified as the discussions were confidential.
The trackwheel was replaced by the trackball with the introduction of the Pearl series, which allowed four-way scrolling.
The trackball was replaced by the optical trackpad with the introduction of the Curve 8500 series.
The original Black Berry devices, the RIM 850 and 857, used the Data TAC network.
In 2002, the more commonly known convergent smartphone Black Berry was released, which supports push email, mobile telephone, text messaging, Internet faxing, Web browsing and other wireless information services.