The Atari 1010 Program Recorder was the replacement to the Atari 400/800 lines Atari 410 Program recorder. The new 1010 was stylish and simplistic to use. Although no faster then any other standard tape recorder/Program Recorder, the Atari 1010 was a reliable little unit and was very popular in European markets where money was tight and the majority of software was available on Tape Cassettes. What made the Atari Data/Program recorders unique from all other cassette decks used on other home computers was its ability to tie into the Atari Audio Summation Circuitry. The Atari 410, 1010 and the Atari XC11 & XC12 Data/Program recorders all worked through the Atari SIO (Serial I/O) bus, a data communications bus very similar to today's USB (Universal Serial Bus). The Data/Program recorders could all be controlled by the Atari computer and also channeled their audio into the SIO bus and into the Atari computer where it would be heard through a connected Television or Computer Monitor. The Data/Program recorders also were Dual Track systems and could load data while also playing audio/music tracks simultaneously. This meant that while another section of a program was loading, the recorder could give the user instructions, information or play a soundtrack to occupy the users time while the program loaded. This system was used extensively in Atari's unique and unparalleled line of educational software.