the core of the processor is composed of the alu and
Central processing unit The form, design, and implementation of CPUs have changed over the course of their history, but their fundamental operation remains almost unchanged. Principal components of a CPU include the arithmetic logic unit (ALU) that performs arithmetic and logic operations, processor registers that supply operands to the ALU and store the results of ALU operations and a control unit that orchestrates the fetching (from memory) and execution of instructions by directing the coordinated operations of the ALU, registers and other components.
MacBook Air The MacBook Air is a line of Macintosh subnotebook computers developed and manufactured by Apple Inc. It consists of a full-size keyboard, a machined aluminum case, and a thin light structure. The Air is available with a screen size of (measured diagonally) 13.3in (33.782 cm), with different specifications produced by Apple. Since 2011, all MacBook Air models have used solid-state drive storage and Intel Core i5 or i7 CPUs.[2] A MacBook Air with an 11.6in (29.46 cm) screen was made available in 2010.[3]