Infrared Data Association in the context of Serial cable

A mobile phone or cell phone is a portable wireless telephone that allows users to make and receive calls over a radio frequency link while moving within a designated telephone service area, unlike fixed-location phones (landline phones). This radio frequency link connects to the switching systems of a mobile phone operator, providing access to the public switched telephone network (PSTN). Modern mobile telephony relies on a cellular network architecture, which is why mobile phones are often referred to as 'cell phones' in North America.

Beyond traditional voice communication, digital mobile phones have evolved to support a wide range of additional services. These include text messaging, multimedia messaging, email, and internet access (via LTE, 5G NR or Wi-Fi), as well as short-range wireless technologies like Bluetooth, infrared, and ultra-wideband (UWB).

The Nokia 6110 is a GSM mobile phone from Nokia announced on 18 December 1997 and released in 1998. It was a hugely popular follower of the Nokia 2110 (1994), and the first of the many Nokia 6xxx series business-targeted phones. Main improvements over the 2110 were reduced size and improved talk time. It was built on the new third generation, Nokia DCT3 hardware platform, and was the first GSM phone to use an ARM processor and the first running on Nokia's Series 20 user interface.

The phone shared the same platform as the Nokia 5110 targeted at the consumer market; unlike the 5110, however, it had the advanced user interface with menu icons (it was the first phone with this new interface that would become the future standard), and featured an infra-red port (once again being Nokia's first phone with it). It was also the first phone from Nokia to have the popular Snake game pre-installed.