define critical section problem in operating system
The Duality of Memory and Communication in the Implementation of a Multiprocessor Operating System
Ngày tải lên :
12/09/2012, 15:05
... University
Pittsburgh, PA 15213
Appeared in Proceedings of the 11th Operating Systems Principles,
November, 1987
Abstract
Mach is a multiprocessor operating system being implemented at Carnegie-Mellon ... shadowing, the data is instead copied from the original.
1
1. Introduction
In late 1984, we began implementation of an operating system called Mach. Our goals for Mach were:
ã an object oriented interface ... Principles of Distributed Computing. 1986.
[15] Rashid, R.F. and Robertson, G.
Accent: A Communication Oriented Network Operating System Kernel.
In Proceedings of the 8th Symposium on Operating...
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gorban a.n. singularities of transition processes in dynamical systems.. qualitative theory of critical delays (ejde monograph 05, 2004)(55s)
Ngày tải lên :
24/04/2014, 16:50
... dynamical systems. The interrelation of six principal kinds of slow
relaxations in perturbed system is analogous to their interrelation in smooth rough
two-dimensional system described in Theorem ... t distinct initial points are
shifted in time t into distinct points for.
For a given parameter value k ∈ K and an initial state x ∈ X, the ω-limit set
ω(x, k) is the set of all limit points of ... is positively invariant submanifold in M with smooth boundary,
int X = ∅, then by in nitesimal (in C
1
-topology) perturbation of F preserving
positive invariance of X one can obtain that semiflow...
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báo cáo hóa học: " On the regularity of the solution for the second initial boundary value problem for hyperbolic systems in domains with conical points" pptx
Ngày tải lên :
21/06/2014, 00:20
... boundary value problems for hyperbolic
equations and systems in domains with co nical points. These problems with t he
Dirichlet boundary conditions were investigated in [3-5] in which the unique ... boundary value problems in domains with point singulari-
ties have been thoroughly investi gated (see, e.g, [1,2] and the ex tensive bibliography in
this book). We are concerned w ith initial boundary ... stu-
died in [6]. In the present paper we consider the Cauchy-Neumann (the second initial)
boundary value problem for higher-order strongly hyperbolic systems in domains with
conical points.
Our...
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The research of using epad technology to support activities in administrative system
Ngày tải lên :
23/11/2012, 15:04
... Delete user
R.4. New incoming document processing package
R.4.1. Register into “incoming book”
R.4.2. Store into database
R.4.3. View new incoming documents
R.4.4. Decide destination
R.4.4.1. Public
R.4.4.2. ...
description
Insert document’s information into “incoming
book” form and store into database
- References R.4.1
- Process
description
Action
Response
1. Click on “incoming book”
button
2. Show information ... Uc11. View new incoming document
Uc12. Decide destination
37
- Use case name View new incoming document
- Actor Employee, manager, administration department
- Purpose View new incoming document
-...
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Tổng quan về Operating System
Ngày tải lên :
18/03/2013, 16:48
...
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 nhau:
... nhau,
với MS_DOS đó là con trỏ lệnh và dấu nhắc hệ điều
hành (C:\>_), với Windows 9x đó là nút Start\Run. Tập
tin Command.Com chính là Shell của MS_DOS.
1.47
Các thành phần của hệ điều hành ...
vụ sau:
–
Quản lý không gian trống trên đĩa.
–
Định vị lưu trữ thông tin trên đĩa.
–
Lập lịch cho vấn đề ghi/ đọc thông tin trên đĩa của
đầu từ.
1.42
Các thành phần của hệ điều hành (tt)
Thành...
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Vietnamese Speech Recognition and Synthesis in Embedded System Using T-Engine
Ngày tải lên :
12/04/2013, 16:05
... short
introduction of T-Engine is given, while a method proposed for
speech recognition in T-Engine is provided in Section 3,
following is Vietnamese speech synthesis method in Section 4.
In ... quality of speech engines. Finally, we demonstrate
a human-computer interaction software in T-Engine embedded
system.
I. INTRODUCTION
In this paper, we are concerned with the combination of speech ... of
system resource (memory, CPU, storage ) in implementation
is a considerable problem, especially for an embedded system
as T-Engine in our case.
The paper is organized as follows. In Section...
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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 ... Divide some common nouns in computing into countable and
uncountable nouns
Language work
2. Robotics
4. Program
5. Hacker
9. Workstation
1. Window
3. Hardware
6. Hacking
8. Software
Countable ... Complete this text with a, an, the (or nothing at all) as
neccessary
Language work
1. a
2. the
3. the
4. nothing
6. nothing
7. the
8. an
9. nothing
5. nothing
10. an
Language work
Countable and...
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Security Issues in Wireless Systems
Ngày tải lên :
29/09/2013, 21:20
... which includes a random challenge string [14–16].
12.5 Mobile IP
Mobile IP was developed in response to the increasing use of mobile computers in order to
enable computers to maintain Internet ... shielding, the traffic of a wireless network can be
eavesdropped from outside the building where the network is operating. In most wireless
networks, there is a kind of link level ciphering done ... encrypted messages being exchanged. Such information could be useful to the
attacker as it can reveal useful information in guessing the nature of the information being
exchanged [2,3].
In general, passive...
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Programming the Be Operating System-Chapter 9: Messages and Threads
Ngày tải lên :
17/10/2013, 19:15
... subsequent window is to be staggered from the pre-
viously opened window:
#define WINDOW_WIDTH 200.0
#define WINDOW_HEIGHT 100.0
#define WINDOW_1_LEFT 20.0
#define WINDOW_1_TOP 30.0
#define WINDOW_H_OFFSET ... number of constants in opening each window. WINDOW_
WIDTH and WINDOW_HEIGHT define the size of each window. WINDOW_1_LEFT and
WINDOW_1_TOP establish the screen position of the first window. The two ... SortItems(int (*cmp)(const void *, const void *));
bool SwapItems(int32 indexA, int32 indexB);
bool MoveItem(int32 fromIndex, int32 toIndex);
void *ItemAt(int32) const;
void *ItemAtFast(int32)...
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