Computer Operating Systems
Urban Voice -- Instructor: Lenny Bailes
Day 30Agenda
1. Chapter 6 Quiz
2. Review Chapter 7 concepts.
a) The OS takes the following steps to read files from a floppy disk.
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b) Four file extensions that Windows 9.x hides after installation are:
_______, _______, ______, ______
c) If you see a general failure reading drive A message, what are some steps you
can take to diagnose the problem?__________________ __________________ _________________
__________________ __________________ _________________
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__________________ __________________ _________________d) If the physical connection to the floppy is good, what error message results when you
try to boot from a non-system disk?
___________________________________________________________.e) What does it mean if you boot from a system disk and you get a message that there is
a "bad or missing command.com?
_________________________________________________________f) What happens if you boot a computer from one version of DOS or Windows 9.x
and try to run DOS system utilities from another version?
_______________________________________________g) What can you do to return to a command prompt after getting an
Abort, Retry, Fail message?
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h) What's the significance of the "Track 0 bad, disk not usable" error message?
___________________________3. Team Contest on Chapter 7 (floppy disk) questions
Check Day 29 Agenda fillins5. Lab Work
Complete DOS Boot Disk Exercise #2 and Day 29 Agenda right-click exercises if not completed.
Do Meyers Lab 5.2: I/O Addresses and IRQs.
Homework
Study for Chapter 7 (floppy disk) quiz on Thursday.
Read A+ in Depth, Chapter 8 on hard disks. study the following vocabulary
concepts: IDE, EIDE, ATAPI, ATA, ATA-2, ATA-3, Ultra-ATA, Ultra DMA/33,
Ultra ATA/66, Ultra DMA/66, Ultra ATA/100, Ultra ATA/133 from the table on page
307.
Also be familiar with these Ch. 8 vocabulary terms and concepts from the beginning of the chapter: Primary & Secondary IDE channel, Master/Slave, SCSI, IEEE 1394, low-level formatting, high-level formatting, heads, cylinders, sectors per track, CHS (or normal mode), Extended CHS Mode, LBA (logical block addressing).You may want to review this series of online tutorials on hard drives.