Questions Section 1: [25 marks] Construct a truth table for the following Boolean expressions: a. ABC + ABC b. ABC + AB C + ABC c. A(BC + BC) d. (A + B) (A + C) (A +B) Note : Show step-by-steps how to solve the Boolean Equation. Section 2: [25 marks] Researches have been investigating systems in which the operating system deliberately place the most-frequency-used files on the outer tracks of a system's hard disk to improve performance. a. Why would this improve performance? b. Would this approach give better performance on a system that had a variable or a fixed number of track per sector? c. In a system that used a fixed number of a sectors per track, does it matter whether the operating system places the most-frequently-used files on the inner or outer tracks, or is it just important that they by placed close together? d. How does your answer to change on a system that used a variable number of sectors per track? Notes: Based on your research, write a report using any word processing package to describes each of the topic in detail. Include pictures, tables, charts, clip-art etc where necessary. Format your report using Arial, font size 11(minimum 2-3 pages for each topic), spacing 1.15 (remove space after paragraph) and alignment is justify.