1. COMPUTER SCIENCE Data Representation and Machine Concepts Section 2.2 Instructor: Lin Chen Sept 2013

2. 2.2 Machine Language 2 Data Manipulation Machine language Collection of instructions along with the encoding system Machine instruction An instruction expressed in machine language Assembly language A low-level language that has strong correspondence with machine language http://www.cs.kzoo.edu/cs108/lectures/machine-assembly.pdf

3. The Instruction Repertoire 2.2 Machine Language RISC (Reduced Instruction Set Computer) CPU should be designed to execute a minimal set of machine instructions CISC (Complex Instruction Set Computer) CPU should execute a large number of complex instructions