1873: Opening of the Commercial Secondary School
1879: Transformation in to the Commercial Technical School with two classes
1911: The first commercial school for girls in Lower Austria was founded in Krems
1934: The commercial school was reformed in June by the Minister of Education Schuschnigg
1938: Union of the Business Economic School with the Urban Commercial School for girls
1945: Secondary school became severely damaged; in the 2nd term the school could be reopened.
1954: The Commercial Academy of Krems was founded
1958: The first school leaving examination was taken
1971: Demolition of the old school
1983: The new building was officially handed over; construction work for HLF 

Computer application in the BHAK-BHAS Krems

In the last decades the Commercial Academy and the Commercial School Krems assimilated the technical progress.

1960 a modern office routine was possible. 15 calculating machines and 6 accounting machines permitted a practically oriented education.
In 1971/72 the subject „data processing“ became a compulsory subject. It all began with a small calculator (model PDP 8-E, central processing unit with 8 K words) and 2 terminals. Since that the computer age entered. This was the beginning of the “computer-age”.
In 1985 the first PCs were used in classrooms.
1988 re-equipment of the computer halls with 20 microcomputers (Memorex, Prozessor 80286, hard disk 20 mb) happened.
The school year 1993/94 formed another milestone in the computing lessons: powerful 80486-machine substituted the older generation.
In the school year 1994/95 a new era in the business education with the establishment of practice companies began. At that time the creation of the so-called ‘economic centres’ (BWZ) started.
So the cross linking of six PCs was necessary.
In autumn of 1997 a personified network was installed.
In 1999 the key course element information management and information technology (IT-HAK) with the first cross-linked class of Austria began as a project
Till 2009 the IT curators Harald Hager and Johann Steinhauer managed the school network.

In 2009 the EDP network was updated to Windows 7 by the IT curators Mag. Martin Bauer, MSC and Mag. Georg Krebs new installed. Eleven notebook classes were divided in sub-networks. A central firewall-appliance was installed to be able to administer the data traffic between the single sub-networks better. All computers were connected to 64-bit operating systems (Windows 7, Windows Server 2008 RS). Since that time a comprehensive WLAN (WiFi) has been available for mobile devices.