CIS 1200 Lecture Notes - Lecture 6: Readwrite, Standard Raid Levels, Antivirus Software

• School: University of Guelph
• Department: Computing and Information Science
• Course: CIS 1200
• Professor: John Saville

Document Summary

Moore"s law the rule that predicts that the number of transistors inside a cpu will increase so fast that cpu capacity will double about every two years has held true for the last 45 years. Types of devices: tablets (ipad, ultrabooks (macbook air, netbooks (screen >10 inches, tablet pcs (touch-enabled screen, laptops/notebooks, desktops. Control unit coordinates the activities of all the other computer components. It fetches the required piece of data or instruction from ram, the temporary storage location for all the data and instructions the computer (cid:374)eeds (cid:449)hile it"s ru(cid:374)(cid:374)i(cid:374)g. It decodes the instruction into something the computer can understand. It stores the result to ram before fetching the next instruction: cpus differ in: Clock speed dictates how many instructions the cpu can process per second measured in ghz (between 2. 1 and 4) Overclocking you run the cpu at a faster speed than the manufacturer recommends makes lifespan shorter.