Complex sentence: Before the initial standardization in 1998, C++ was developed by Bjarne Stroustrup at Bell Labs since 1979, as an extension of the C language as he wanted an efficient and flexible language similar to C, which also provided high-level features for program organization.
Split into simpler sentences: Before the initial standardization in 1998, C++ was developed by Bjarne Stroustrup at Bell Labs since 1979. It was meant as an extension of the C language as he wanted an efficient and flexible language similar to C, which also provided high-level features for program organization.