ECS Study Guide.docx

Advocacy - correct answer Use data to document situations that contribute to make a positive or negative case for something. Discovery - correct answer Collect data to document situations and then use the data to learn something. 4 steps to problem solving - correct answer a. Understanding the problem (read or listen to the problem statement) b. Make a plan to solve the problem (use pictures, graphs, etc.) c. Carry out the plan (follow your plan) d. Review & Reflect on how the problem was solved 3 criteria for understanding a problem - correct answer i. What data or information is known? ii.What is unknown? iii.What are the conditions? Difference between binary and linear search - correct answer Binary Search - look at the middle item, eliminate the half where the value is not located. Find the new middle element and continue the process until you find what you're looking for or there is no more data. SORTING. Linear Search - start at the beginning. Look at each item until you find it or there is no more data. CPU - correct answer The part of a computer in which operations are controlled and executed. Megahertz - correct answer One million hertz. Gigahertz - correct answer A unit of frequency equal to one billion hertz. RAM - correct answer Primary storage which is fast, relatively expensive, and volatile. ROM - correct answer Primary storage whose contents are written at manufacture and cannot be altered later. Hard Disks - correct answer Magnetic secondary storage device found in most desktop and laptop computers.