My File

My File

  • Submitted By: shubjit
  • Date Submitted: 11/27/2013 4:26 AM
  • Category: Technology
  • Words: 6242
  • Page: 25
  • Views: 2

This document provides an outline of the key questions you should be able to answer from each week. This list is not exhaustive but is provided as a guide to assist you in gauging how comprehensively you understand topics.

Brookshear chapters 1 & 2 1.1, 1.2, 1.3, 1.4, 1.8, 1.9, 2.1, 2.2, 2.3, 2.5, 2.6 (opt 1.5, 1.6, 1.7, 2.4) Bits & Storage 1) 2) 3) 4) What values do bit represent? What are the three basic Boolean operations? Describe the outputs from a given Boolean operation given the inputs. What is the purpose of a gate? What is the relationship between gates and flip-flops? Why do we use hexadecimal notation?

Memory 5) 6) 7) Define main memory. In doing so, explain: a) How memory is organised b) The purpose o most significant and least significant bits Explain the concept of Random access to memory (as in RAM) Expand the acronyms DRAM and SDRAM

Mass Storage 8) 9) 10) 11) 12) 13) 14) 15) 16) What is the difference between on-line and offline mass storage? Provide examples for each. Describe the structure of a magnetic disk. In doing so, discuss: a) Track, sectors and cylinders b) The role and need for formatting Describe the four typical measures of disk performance. Why are hard disks sealed units? What is the effect of dust and dirt on disk surfaces? Given two hard disk, D1 rotating at 5400 revolutions per minute, and D2 rotating at 7200 revolutions per minute, and assuming all other things being equal, which disk would have the higher transfer rate? Why? What role does magnetic tape have in modern IT systems? What purpose and advantages does it offer? Why does a CD-DA have to vary its rotation speed in order to play CDs? Are CDs optimised for random access to data? Why/Why not? What are the differences between CD, DVD and BD technology? STUDY


17) Why is flash memory unsuitable for use as main memory? 18) Define...

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