Computer Operating Systems
Urban Voice -- Instructor: Lenny Bailes
Day 13 Agenda
1. Written quiz on chapters 1 & 2
2. Review Chapter 3 concepts
a) At the beginning of each partition, the File Allocation Table provides pointers to the cluster numbers where
files and folders are located. Additionally, each partition has a __________ table, which provides a quick list
of all the files and directories, including size, date, and time information.
b) Directories underneath the root directory are called _____________, ______________, or ___________.
c) When you list the location of a file on the hard disk, this is called the ______ to the file.
d) The last ___ letters of a filename in MS-DOS or Windows, after the period, is referred to as the
file extension. Generally, the file extension contains information about the filetype.
Files with the ___, ___, and ____ file extensions are considered to be program files.
Files with the ____ file extension are Microsoft Word documents.
Files with the ____ file extension are Microsoft Excel spreadsheets.
Jean Andrews also considers files with the .SYS extension to be program files. These files are a speciale) Under Windows 9.x and later Windows OSes, filenames can be as long as ____ characters and contain
subset generally referred to as device drivers. They contain instruction sets that can be invoked by loading
them from a configuration file, such as CONFIG.SYS or SYSTEM.INI. But these files cannot be run by a
user from the command line .as ordinary program files can..
f) When Windows 98 is loaded, the operating system begins the boot process in real mode, by loading the
three MS-DOS system files, IO.SYS, MSDOS.SYS, and COMMAND.COM.
Additionally, the OS looks for two optional configuration files:
The first, called _______________ is loaded before COMMAND.COM, if present, and usually contains
statements that load device drivers or configure memory management.
The second, called _____________ is loaded after COMMAND.COM, but before Windows, and contains
statements that set operating system environment variables or launch small utility programs.
g) One operating system variable, called the _______ statement, specifies which directories the operating
system should search to execute DOS or Windows applications.
DOS Commands to learn this week:
DIR, CD, COPY, DEL, MKDIR (MD), RMDIR (RD), CLS, PATH, TYPE, DATE, TIME, VER
DOS utility programs to learn this week:
FORMAT, FORMAT /S
3. Discuss Chapter 3 vocabulary terms (A-I) and check answers to questions 1-6
4. Work on DOS Exercises in the lab
Continue reading A+ Chapter 3, pages 81-105 to learn about Understanding the Boot Process and the Command line..
Write out Chapter 3 vocabulary definitions L-W on page 118. Write out flashcards for questions 1-6 on p.119.
Write out answers to questions 7 - 15 on pages 120-121.