directories and file systems
Chapter-10-File systems and devices
... Makefile Makefile.bak Makefile˜ depend deppert.floppy doio filesys.mm,v v4.17 (2003/04/02 06:43:57) April 2003, 17:00:47 The Complete FreeBSD ( /tools/tmac.Mn), page 183 183 Chapter 10: File systems ... File System, a means of sharing file systems across a network We’ll look at it in Chapter 25 • FreeBSD supports a number of file systems from other popular operating systems You mount the file systems ... of file system Local file systems on hard disk are always ufs, and file systems on CD-ROM are cd9660 Remote file systems are always nfs Specify swap partitions with swap, and the proc file system...
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Chapter 4: Operating Systems and File Management pdf
... Systems and File Management 19 Handheld Operating Systems Chapter 4: Operating Systems and File Management 20 SECTION File Basics C File Names and Extensions File Directories and Folders File ... data files and program files Chapter 4: Operating Systems and File Management 35 File Management Tips Don’t store files in the root directory Access files from the hard disk Accessing files ... Operating Systems and File Management 39 Physical File Storage Deleting a file changes the status of that file s clusters to empty and removes the file name from the index file – The file s data...
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LƯU TRỮ VÀ CẤU TRÚC TẬP TIN (Storage and File Structure)
... cận để ánh xạ CSDL đến file sử dụng số file, lưu trữ mẩu tin thuộc độ dài cố định vào file cho Một cách khác cấu trúc file cho ta điều tiết nhiều độ dài cho mẩu tin Các file mẩu tin độ dài cố ... chức file đống (Heap File Organization) Trong tổ chức này, mẩu tin lưu trữ nơi file, có không gian cho Không có thứ tự mẩu tin Một file cho quan hệ • Tổ chức file ( Sequential File Organization) ... A-217 A-301 550 • file mẩu tin account Trong phần này, ta giả thiết tất file thứ tự khoá tìm kiếm Các file vậy, với mục sơ cấp khoá tìm kiếm này, gọi file mục (index-sequential files) Chúng biểu...
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Children’s Health Deficits due to Diarrhoea: Effects of Water Supply and Sanitation Systems in Slums with Different Water Logging Conditions
... Short-term and Heavy rainy, SDG: Short-term and Drainage, LSD: Long-term and Stagnant, LHT: Long-term and Heavy rainy, LMK: Long-term and Monsoon flood, PDL: Persistent and Drainage, PHS: Persistent and ... supply and (c) sanitation systems and attitudes for (d) water treatment at home, (e) children’s defecation habits and (f) hygiene practices Note: Communities code name, SRM: Short-term and Rainy, ... LHT LMK PDL PHS PSM NCD Hand washing with soap before eating Hand washing without soap before eating No hand washing before eating Hand washing after defecation with soap Hand washing after defecation...
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Integration of energy and environmental systems in wastewater treatment plants
... management and pollution controls Contamination of raw water source Implement and enforce water and land protection zones Water stress/ insufficient water allocation Study water yields; draft and conclude ... include blower and oxidation ditch, pump and trickling filter, and clarifier Based on the literature review, specifications, operating time, and capacity, it was estimated that blower and oxidation ... efficiency and renewable investments Conclusions and future work This research evaluates the relationship between environmental and energy factors and explores the value in tracking energy and environmental...
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File systems
... Cài đặt boot loader LILO: - Cài đặt boot loader LILO - Tìm hiểu file cấu hình lilo.conf: man lilo.conf So sánh file cấu hình với file cấu hình grub.conf Biên soạn: Nguyễn Trí Thức – Lưu Hành Nội ... Đinh Tiên Hoàng, P Đa Cao, Q.1, TP.HCM Tel: (84-8) 38244041 – 0989012418 www.athena.edu.vn Lưu file grub.conf lại khởi động lại hệ thống - Sau khởi động lại hệ thống menu boot sau: Lần lượt chọn ... Đinh Tiên Hoàng, P Đa Cao, Q.1, TP.HCM Tel: (84-8) 38244041 – 0989012418 www.athena.edu.vn - Copy file lilo.conf vào thư mục /etc/lilo.conf - Sử dụng lệnh /sbin/lilo để thay boot loader GRUB boot...
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Administering File Systems
... /etc/fstab file Remote file systems (NFS, Samba, and others) can also contain entries in the /etc/fstab file to automatically mount those file systems at boot time or later by hand Mounting File Systems ... commands such as fdisk and parted Tools for working with file systems include those that create file systems (mkfs), view and modify file system attributes (tune2fs and dumpe2fs), mount/unmount file ... command Mounting File Systems from the fstab File When you first install Linux, the /etc/fstab file is usually set up automatically to contain information about your root file systems and other file...
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Directory and File Commands
... Command to join two files into one $ cat filename1 filename2 > file3 This example joins filename1 and filename2 files into filename3 file Note – If filename3 is existed, this command will overwrite ... program The format for the redirection of standard input, standard output, and standard error is: command > file or command >> file command < file command 2> file Angle Brackets ( >, ) Use the ... ls command to a file called file. list ls > file. list 19 Display the contents of file. list using the cat command cat file. list 20 Append the output of the date command to file. list date >> file. list...
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The 8051 microcontroller and embedded systems using assembly and c 2nd ed
... Microcontroller and Embedded Systems: Using Assembly and C Mazidi, Mazidi and McKinlay Chung-Ping Young 楊中平 Home Automation, Networking, and Entertainment Lab Dept of Computer Science and Information ... Numbering and coding systems Digital primer Inside the computer Department of Computer Science and Information Engineering National Cheng Kung University, TAIWAN NUMBERING AND CODING SYSTEMS Decimal and ... Microcontroller and Embedded Systems: Using Assembly and C Mazidi, Mazidi and McKinlay Chung-Ping Young 楊中平 Home Automation, Networking, and Entertainment Lab Dept of Computer Science and Information...
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Interruptions and file managing
... to file handling" FCB Method 0FH Open file 14H Sequential reading 15H Sequential writing 16H Create file 21H Random reading 22H Random writing Handles 3CH Create file 3DH Open file 3EH Close file ... Contents 5.7.1 Working with handles 5.7.2 Functions to use handles 5.7.1 Working with handles The use of handles to manage files greatly facilitates the creation of files and programmer can concentrate ... Close file (handle) Call registers: AH = 3EH BX = Assigned handle Return registers: CF = if there were no mistakes, otherwise CF will be and AX will contain the error code: 06H if the handle...
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Nano and Microelectromechanical Systems P4
... (N), • cylindrical (C) and • asymmetrical (A) Using the possible electromagnetic systems and geometry, actuators and sensors (motion nano- and microstructures as well as nano- and microdevices) can ... ICs, provide enabling benefits and capabilities to design and manufacture NEMS and MEMS Critical issues are to improve power and thermal management, circuitry and actuator/sensor integration, ... integrated circuit and micromachining silicon, germanium, and gallium arsenic technologies have been developed and used to manufacture ICs and motion microstructures (microscale actuators and sensors)...
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Managing File Systems
... major and minor device number Delete the device file What happens to that session? Log out of the session Now what happens? Recreate the device file Devices, Partitions and File systems Device files ... FAT/FAT32 file system used by Windows 9x, and read only support for the NTFS file system) A file system is simply a set or rules and algorithms for accessing files Each system is different; one file ... Native File System - ext3 Overview Historically, Linux has had several native file systems Originally there was Minix which supported file systems of up to 64Mb in size and 14 character file names...
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Nano and Microelectromechanical Systems P6
... closed-loop systems use the data from different sensors, feedback commands (controls) are generated and executed, and intelligent updates and evolution are performed The feedback for sensor and control ... because V (e, x ) > and dV (e, x)
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Nano and Microelectromechanical Systems P5
... the stator and rotor circuitry dynamics As the control and state variables we use the voltages applied to the stator (as and bs) and rotor (ar and br) windings, as well as the stator and rotor ... following relation and frequency f of the supplied voltages To attain the acceleration and settling time specified, overshoot and rise time needed, the general purpose (standard), soft- and high-starting ... the following variables and symbols are used: uas , ubs and ucs are the phase voltages in the stator windings as, bs and cs; uqs , uds and uos are the quadrature-, direct-, and zero-axis stator...
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The Future of Wireless Banking Implementation of Wireless Banking and Financial Systems
... standard There are several network standards, PDA standards, browsing standards, protocol standards…etc In the wireless world, airwaves are the only vehicle to send and receive data Depending on the ... enhanced voice and data and even video It is bandwidth can be as high as Mbps and will operate at GHz Will Wireless banking play a major role in new markets? P2P (Person to Person), and P2A (Person ... The WebSphere application server will handle the data dynamically and adapt it to the handheld device Also it can run multiple applications and requests, and can be easily integrated to the backend...
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Darwinism, Design, and Complex Systems Dynamics
... crudely functional whole and then to remove and replace less reliable subsystems Challet and Johnson estimate that one-half of the components could be significantly imperfect and yet the system as ... attention self-organization and emergence in complex natural systems Both ID and hyper-adaptationist Darwinian (HD) theorists share assumptions about the nature of organisms and systems These shared ... Design, and Complex Systems Dynamics 1:5 183 sources for such molecules and their spontaneous self-organization into membranous vesicles have been demonstrated (Deamer and Pashley 1989; Deamer and...
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GSM, cdmaOne and 3G systems P1
... described by two vectors g1 = 101] and g2 = 111] and the corresponding code word c2 c1 ], where c1 =4 b2 b1 b0 7g and c2 =4 b2 b1 b0 (1.17) 7g (1.18) and where b0 , b1 , and b2 are the three bits in ... g1(z) = + z2 and g2(z) = + z + z2 (1.19) where denotes the present input bit, and z and z2 represent the previous input bits having one and two clock period delays, respectively, and + is modulo ... Walsh code 0, or w0 ; row and column are w1 ; row and column are w2 ; and row and column are w3 The Walsh code number w j is the average number of zero crossings between +1 and If the numbers are...
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Tài liệu GSM, cdmaOne and 3G systems P3 doc
... signalling random variable of the error in S (dB) random variable of the power control error in the received interference power random variable with standard deviation σe shadow fading random variable ... the variations in the terrain and the distribution of buildings and streets We allow for these variations by introducing a random variable λ having zero mean and standard deviation σ Often λ is ... Sectors E and F have a reuse distance of 3R , sectors B, D and G have a reuse distance of 3R, and sectors A and C have a reuse distance of 3R We find that the average SIR is 4:4 dB, 7:4 dB, and 8:6...
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Tài liệu GSM, cdmaOne and 3G systems P4 pdf
... The filter pass band extends from to f p and the stop band extends from fs to ∞ Within the pass band the filter response is prescribed within the limits δ1 , and within the stop band the filter response ... positioned in such a way as to allow sufficient guard bands between other services operating above and below the cellular band and between the A and B services Consequently, the CDMA carriers are ... spectral guard bands between the different operator frequency blocks (unless adjacent blocks are allocated to the same operator) and between the systems that occupy the frequency bands above and below...
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Tài liệu GSM, cdmaOne and 3G systems P5 pdf
... interfering mobile and zeroth BS, is rj = q D2 j + r2 2D j r cos(ϕ) (5.81) and ζ is the difference between λi j and λ0, the independent random variables with zero mean and standard deviation σ ... functions, and ζ j ζk and ζl are Gaussian random variables each having a p standard deviation of 2σ If φ( ) ( ) is not 1, then handover occurs Because Iext =S is a function of the random variables ... the ith mobile in the jth cell, and ε is a random variable p having zero mean and normal distribution with a standard deviation of σε = 2σe From Equations (5.82) and (5.100), the total intercellular...
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