IT 600
Final Project Milestone One
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Overview: For the
final project, you will evaluate a fictitious organization and develop a set of
operating system requirements and a comprehensive
recommendation for
that organization. The goal is to leverage the cumulative knowledge you acquire
in each module of this course to map operating system
components to
organizational challenges. Each module will have a conceptual base. You will
then complete a hands-on lab by leveraging the workstation you are
using to take this
course. Later, you can apply the knowledge of the specific operating system
commands in those labs to write about how the commands would
be applied in a
real-world analysis of an operating system’s capabilities. Review the Top
Secret, Inc. scenario below carefully to understand the nature of the
problem. They make a
fine product, yet they cannot use it effectively to run their own operation.
Consider the differences between a simple single-purpose
operating system and
a general-purpose operating system and how the concepts you are learning in
this course can help Top Secret, Inc. find a solution.
Scenario: Top Secret,
Inc. (TSI) is a successful operating system company whose customers include
Fortune 500 companies, governments throughout the world,
and major U.S.
contractors. TSI makes embedded operating systems for secure terminals that
control ingress/egress control systems for Wall Street firms,
camera systems for
drone aircraft for government contractors, and alarm systems for top-secret
government installations. TSI operating systems are worldrenowned
for their quick
response to sensor input, highly reliable operation, limited memory
utilization, small size on disk, and low power consumption.
The TSI Operating
System (TSI OS) works exceptionally well on the devices owned by TSI customers,
but it does not work well in the TSI back office. Like many
startup companies,
TSI had to cut costs when it launched a few years ago. To save money, the
company decided not to use enterprise-class operating systems
for its own
workstations and servers. Instead, it chose to use a single-purpose TSI OS,
reasoning that TSI OS was good enough for TSI customers, so it should be
good enough for TSI. Unfortunately, TSI OS lacks many features of a
modern operating system and does not take advantage of the architectural
optimizations
present in the latest hardware. Below is a matrix
of general purpose operating system (GPOS) features and how they map to TSI OS:
GPOS Feature TSI OS Support
for GPOS Feature
Multiprogramming
TSI OS does not
support more than one program running at a time. TSI
customers need one
program resident, and that is the program that
handles sensor input
and (e.g., from cameras and motion sensors). A backoffice
operating system
requires preemptive multitasking and advanced
scheduling features.
Multiprocessing
TSI OS does not
support more than one processor on a physical device.
The operating system
locks up when interrupts are generated by a second
processor. Since most
processors on the market are multicore, TSI has to
purchase old,
decommissioned hardware with single-core processors for
its data center.
Multithreading
TSI OS lacks a system
call interface beyond basic file open, close, read, and
write. As such, it
does not provide a CreateThread() or pthread_create()
API call like Windows
or Linux. Back-office applications that offer
multithreaded
operation hang at launch, so TSI has to use open-source
software so that a
team of TSI software developers can remove multithreading
functionality.
Virtual Memory
TSI OS uses a flat
memory model without paging. As a result, TSI OS
administrators in the
back office frequently have to reboot the operating
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