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The Duality of Memory and Communication in the Implementation of a Multiprocessor Operating System
Ngày tải lên :
12/09/2012, 15:05
... provide enough memory for reasonable data manager tasks.
Many other operating systems have met with this problem. Often these systems solve the problem by using inside
knowledge of the algorithms ... implemented with the external memory
management facility the most recent and most experimental addition. A production version of Mach is in use on
over 200 workstations and large timesharing systems within ... late 1984, we began implementation of an operating system called Mach. Our goals for Mach were:
ã an object oriented interface with a small number of basic system objects,
ã support for both distributed...
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Tổng quan về Operating System
Ngày tải lên :
18/03/2013, 16:48
... là hệ
điều hành sau này.
1.23
Một số khái niệm của hệ điều hành(tt)
Sự phân lớp hệ thống (System Layering)
–
Mỗi người sử dụng khác nhau yêu cầu khai thác hệ điều
hành ở những mức độ khác...
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Operating system
Ngày tải lên :
03/08/2013, 01:26
...
Warm up
A. Look at the diagram
What is the function of the operating system?
The function of operating system is to control a computer,
manage the function of the computer, and ... information
4. The news was very depressing
5. Many people use the Web today
C. Complete this text with a, an, the (or nothing at all) as
neccessary
Language work
1. a
2. the
3. the
4. nothing
6. ... text below and find
1. MS - DOS
2. Microsoft window
3. Pocket PC
4. Mac OS
5. OS/2Wrap
6. UNIX
7. Linux
8. Solaries
...
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Linux Gold-System Build
Ngày tải lên :
05/10/2013, 08:51
... address and a system name, and then you can connect
the finished system to the network.
for slice in 6 1 5 7 8 9 11
do
umount /dev/hda$slice
done
245
■ ■ ■
CHAPTER 38
Linux Gold -System Build
B
uilding ... /tmp/root/boot
mount /dev/hda5 /tmp/root/usr
if [ ! -d /tmp/root/usr/local ]
248
CHAPTER 38
■
LINUX GOLD -SYSTEM BUILD
system to make sure the script output and the gold partition table match while account-
ing ... file systems were part of this build, but it would be trivial to modify the code to
remove unnecessary ones or to add your own file systems to match your gold build.
The last two file systems...
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Programming the Be Operating System-Chapter 9: Messages and Threads
Ngày tải lên :
17/10/2013, 19:15
... clipboard without
pasting it anywhere, you can do so by directly accessing the clipboard.
To fully appreciate how to work with the clipboard, you’ll want to read this chap-
ter’s “Working with BMessage ... clipboard without any intervention on the part of the user.
Application-Defined Messages
Up to this point, you’ve dealt mostly with system messages—messages generated
and dispatched by the system. ... BView object’s version of
the hook function MouseDown() is invoked.
Chapter 4 provided a variety of examples that demonstrated system message han-
dling, including B_MOUSE_DOWN and B _KEY_ DOWN messages....
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PHẦN 2: HỆ ĐIỀU HÀNH (OPERATING SYSTEM)
Ngày tải lên :
19/10/2013, 18:15
...
phải đợi khi thực hiện Wait (full) .
P1
…
Tạo data;
Wait(empty);
Wait(mutex);
đoạn CT đặt data vào Buffer;
Signal(mutex);
Signal (full)
…
P2
…
Wait (full) ;
Wait(mutex);
đoạn CT ... thống tập tin (File System) .
4. Quản lý nhập xuất (I/O).
5. Quản lý thiết bị lưu trữ (Secondary-storage).
6. Quản lý mạng (Networking).
7. Hệ thống bảo vệ (Protection System) .
8. Hệ thông ... : sử dụng 3 Semaphore
Mutex : KT truy xuất đồng thời P1, P2 (mutex=1).
full : số phần tử có data trong Buffer (full= 0).
empty : số phần tử còn trống trong Buffer (empty=0).
Cấu trúc lại...
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Programming the Be Operating System-Chapter 10: Files
Ngày tải lên :
20/10/2013, 10:15
... Using Standard Open and Save Panels 361
Using Standard Open and Save Panels
An operating system with a graphical user interface typically provides standard-
ized means for opening and ... Files
POSIX,orPortable Operating System Interface for Unix, is a standard
developed so that buyers (particularly the U.S. government) could be
assured of purchasing programs that ran on a variety of systems ... you aren’t comfortable with Unix, you probably aren’t
familiar with POSIX. That’s okay, because the Storage Kit also defines classes (such
as BFile) that let you work with files outside the realm...
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Operating System Structures Cấu trúc Hệ điều hành
Ngày tải lên :
28/10/2013, 09:15
... some systems store the operating system in firmware, and others on disk?
Tại sao một số hệ thống lưu trữ hệ điều hành trên firmware, còn một số khác thì lưu
trên đĩa?
2.13 How could a system ... người dùng.
2.10 What is the purpose of system calls?
Mục đích của system call là gì?
2.11 What are the main advantages of the microkernel approach to system design?
Lợi ích chính của phương ... bất lợi của việc sử dụng
phương pháp phân tầng là gì?
2.9 List five services provided by an operating system. Explain how each provides
convenience to the users. Explain also in which cases it...
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Tài liệu Microsoft® Windows® 2000 Network and Operating System Essentials ppt
Ngày tải lên :
09/12/2013, 17:15
... network operating system. Just as a computer
cannot operate without an operating system, a network of computers cannot
operate without a network operating system. Every network operating system ... network operating system s manufacturer, a desktop
computer’s networking software can be added either to the computer’s own
operating system or be integrated with it. Network operating system ...
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Microsoft
đ
Windows
2000
An operating system is software that provides the means for applications to
interact with the computer’s hardware. An operating system manages four key
aspects of a computer’s...
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