In the OP video, Sussman explains that SICP was one of four courses at MIT that taught students how to combine small H/W and S/W components to build computers a

In the OP video, Sussman explains that SICP was one of four courses at MIT that taught students how to combine small H/W and S/W components to build computers and programs from the ground up. SICP built atop those primitives -- chips and assembly that compose functions -- and introduced the students to the primitives of computational models, from concrete procedural to abstract functional, in which lambda functions lead to higher order theoretical models of computing that will be encountered in EECS courses that follow... the gang of four.