Short messages are typically transmitted between two parties, when each user chooses to complete a thought and select "send".Some IM applications can use push technology to provide real-time text, which transmits messages character by character, as they are composed. Mos je ti zemra ime qe rreh, mos je ti vetmia qe me pret?
Many applications allow file transfers, although they are usually limited in the permissible file-size.
It is usually possible to save a text conversation for later reference.
Instant messages are often logged in a local message history, making it similar to the persistent nature of emails.
Though the term dates from the 1990s, instant messaging predates the Internet, first appearing on multi-user operating systems like Compatible Time-Sharing System (CTSS) and Multiplexed Information and Computing Service (Multics) in the mid-1960s.
Initially, some of these systems were used as notification systems for services like printing, but quickly were used to facilitate communication with other users logged into the same machine.