Computer Operating Systems

1.   Chapter 5Quiz on Motherboards

2. Check homework: Meyers labs 4.1/4.2

3. Review Day 26 fill-ins on memory

    What are SO-DIMMs? (See also, 200-pin SO-DIMMs)

    What is SLDRAM?

   What is a C-RIMM, what is Concurrent RDRAM?

   How fast are current DDR-SDRAM and Direct RAMBUS SDRAM? (Clock multiplier? Bus Speed?)

 4. Continue discussing Chapter 6 memory concepts 

    a)  __________ is an error-checking technology in which every byte stored in RAM has
          either an _____ or an _____ number of "1s."   

          Each byte stored in parity memory uses    ____ bits instead of ____.

          If the parity bit of a byte read back from memory doesn't match the original parity

          state, then  a ______________ is reported.

    b)    ____ is another error-checking technology. How is it superior to parity checking?

            _____________________________________________________________ .

    c) Can memory chips that use technology a) or technology b) be installed on motherboards
        that don't support these technologies? ______________________________________

        ____________________________________________.

    d) When shopping for memory chips, you should look at the following criteria
         See A+ in Depth, p. 254-255 :

         __________________ 

         _________ or _______

         __________________

         __________________

         __________________

         __________________

      e) Two ways to determine how much and what kind of memory your system can support
           
          are _____________________________________    and _____________________

          _______________________________________.



          30-pin SIMMS are installed in groups or banks of ____ chips. Can you mix sizes,
           installing a 2MB and a 4MB module in the same bank? _________.

          72-pin SIMMS are installed in groups or banks of _____.  Can a motherboard have
           more than one bank for 72-pin SIMMS?
           Can you mix memory sizes or speeds in the same bank? ____. Can you install different
           memory sizes in two different banks? _________.  Different memory speeds? ____

          168-pin DIMMS are installed in groups or banks of ____. Can you install different

          memory sizes on the same motherboard? ______. Different memory speeds? _______,

          Mix single-side and double-sided modules? _________
             
          For RIMMs modules __________________________________________________

          __________________________________________________________________.

 

    f)   If an ad lists 16-64 SDRAM at $28, then each module contains ______MB of 
        (circle) error-checking | non error-checking memory.

         If an ad lists 64x72 DDR RAM at $159, then each module contains ____MB of 
         (circle)  error-checking | non error-checking memory.

5.   Chapter 6 question team-contest

6.   Lab work (time permitting)

    a)   Finish Day 25 agenda fill-ins for User Manual lab.
    b)   Finish Meyers labs 2.1 and 2.3 on removing/reinstalling CPU fan and CPU
    c)   Begin working on DOS Boot Disk Exercise #2.

Homework

Have Day 26 and Day 27 Agenda fill-ins completed and ready for inspection..

Review A+ in Depth, Chapter 6 on Managing Memory, p. 241-277 for final class discussion.
Begin reading A+ in Depth, Chapter 7 on Floppy Drives, p. 279-293. Review vocabulary
key terms on p. 302 and write out answers (or flash cards) to questions 1-7 on p. 302-303