installing your ports mouse and keyboard
build your own pc do-it-yourself for dummies
Ngày tải lên :
07/04/2014, 13:56
... Installing Your Ports, Mouse, and Keyboard 77 Pursuing Your Port Preferences .77 Of Keyboards and Mice 82 The mouse has mutated 82 The key to keyboards ... Building the Foundation: The Case and Motherboard .41 Chapter 4: A Bag of Chips: Adding RAM and a CPU .61 Chapter 5: Installing Your Ports, Mouse, and Keyboard .77 Chapter 6: ... the keyboard if necessary) Even the traditional keyboard has changed Ergonomically shaped keyboards are designed to make typing easier on your hands, wrists, and forearms And both Windows XP and...
- 340
- 724
- 0
An introduction to disk drive modeling
Ngày tải lên :
12/09/2012, 14:16
... buffer memory, and an interface to the SCSI bus The controller manages the storage and retrieval of data to and from the mechanism and performs mappings between incoming logical addresses and the physical ... costs of head and track switching This was achieved by determining which track and cylinder the request started on and where it ended, and then adding a fixed cost of 2.5 ms for each head and track ... engine), models the SCSI bus interface and its transfer engine This task accepts requests of the form “transfer this request between the host and the disk” and handles them one at a time A cache object...
- 19
- 1.1K
- 0
Tài liệu Tổng quan về Ổ cứng Hard Disk Drive (HDD) doc
Ngày tải lên :
13/12/2013, 04:15
... cứng phải làm việc cấp độ sector Lost cluster: thông thường bạn dùng chương trình sửa ổ cứng scandisk/ndd (chạy FATx File System) bạn nhận thông báo “Lost cluster found! Fix it ?” Thật trong ... Hiện nhà sản xuất ngày nâng cao tốc độ ổ cứng chắn tốc độ truy xuất liệu ổ cứng không nhanh RAM (Random Access Memory - nhớ truy xuất ngẫu nhiên) Để giảm bớt phần khoảng cách đó, nhà sản xuất phần ... gọi swap file) ổ cứng mạng (98,Me) Nó sử dụng trình “đọc trước – ghi từ cache xuống” (read-ahead and write-behind caching) VCACHE ví dụ điển hình “bộ đệm mềm” (software disk cache) Đọc trước (read-ahead)...
- 27
- 760
- 6
Tài liệu Hard Disk Drive Servo Systems- P1 docx
Ngày tải lên :
14/12/2013, 19:15
... Time Series Forecasting Ajoy K Palit and Dobrivoje Popovic Modelling and Control of mini-Flying Machines Pedro Castillo, Rogelio Lozano and Alejandro Dzul Rudder and Fin Ship Roll Stabilization Tristan ... chip for timing control and control of interface, microcontroller/digital signal processor (DSP) for servo control and control interface, and ROM and RAM for microcode and data transfer Lastly, ... Fuzzy Logic, Identification and Predictive Control Jairo Espinosa, Joos Vandewalle and Vincent Wertz Optimal Real-time Control of Sewer Networks Magdalene Marinaki and Markos Papageorgiou Process...
- 50
- 565
- 0
Tài liệu Hard Disk Drive Servo Systems- P2 docx
Ngày tải lên :
14/12/2013, 19:15
... nonexistent, left invertible if and only if (and hence ) are nonexistent, and invertible if and only if both and are nonexistent Moreover, is degenerate if and only if both and are present 3.2 Structural ... e.g., Anderson and Moore [87], Fleming and Rishel [88], Kwakernaak and Sivan [89], and Saberi et al [90], and references cited therein) In what follows, we focus mainly on the formulation and solution ... contained in X for some constant matrix in Ker Moreover, we let X X ; and X and finally and X X and X , if X , if X , if X X X ; ; X and and X , if We have the following property Property 3.8 if if spans...
- 50
- 370
- 0
Tài liệu Hard Disk Drive Servo Systems- P3 ppt
Ngày tải lên :
14/12/2013, 19:15
... sat (4.29) is given by and the function for (4.30) sgn for Here we note that and are, respectively, the feedback gains for position and velocity, is a constant between and and is referred to as ... F L where is the reference input and is the state of the controller As usual, and are gain matrices and are designed such that and are asymptotically stable and the resulting closed-loop system ... Equation 5.46 and all trajectories starting from the set converge asymptotically to the origin Thus, for the initial states of and and step command inputs that satisfy Equation 5.40, and (5.50)...
- 50
- 359
- 0
Tài liệu Hard Disk Drive Servo Systems- P4 ppt
Ngày tải lên :
14/12/2013, 19:15
... a smooth and nonpositive with and tending to a constant as , the enhanced function of reduced-order CNF control law of Equations 5.116 and 5.117 internally stabilizes the given plant and drives ... of the enhanced CNF control and linear control sat (5.136) where , , and are, respectively, the state, control input, measurement output and controlled output of , , and are appropriate represents ... to the origin 5.149 and all trajectories of Equation 5.149 starting from Thus, for any initial state and the step command input that satisfy Equation 5.144, we have (5.152) and hence (5.153) This...
- 50
- 314
- 0
Tài liệu Hard Disk Drive Servo Systems- P5 pdf
Ngày tải lên :
14/12/2013, 19:15
... design, which include the results of gain and phase margins and the plots of sensitivity and complementary sensitivity functions Traditionally, gain and phase margins can be obtained through ... variations, disk flutter and slider vibrations Electrical noises include quantization errors, media noise, servo demodulator noise and power amplifier noise NRROs are usually random and unpredictable ... (7.10) and (7.11) In the actual simulation and implementation of the PTOS controller of Equation 7.6, is replaced with of Equation 7.11 and P (7.12) is as given in Equation 6.9 The simulation and...
- 50
- 332
- 0
Tài liệu Hard Disk Drive Servo Systems- P6 pdf
Ngày tải lên :
14/12/2013, 19:15
... actuator is given by and and sgn Thus, the (9.14) where sgn (9.15) and (9.16) and are, respectively, the corresponding is the breakaway torque, and where input voltage and the deflection angle ... if and are of zero means and jointly Gaussian, then and can be easily obtained Let us assume that and have a joint probability density function exp where is the normalized covariance of and , and ... and and are the standard deviations of and , respectively Then the linearization coefficients and can be expressed as follows: 10.2 Linearization of Nonlinear Hysteretic Dynamics 273 (10.7) and...
- 50
- 350
- 0
Tài liệu Hard Disk Drive Servo Systems- P7 pptx
Ngày tải lên :
14/12/2013, 19:15
... steady-state error is zero; the gain margin and phase margin of the overall design are, respectively ,greater than dB and ; and the maximum peaks of the sensitivity and complementary sensitivity functions ... 5% settling time is 0.68 ms, the gain margin is 7.85 dB and the phase margin is 44.7 , and finally, the maximum values of the sensitivity and complementary sensitivity functions are less than dB ... (μm) (a) and for the system without output disturbance and noise 0.8 0.6 0.4 0.2 0 0.5 1.5 Time (ms) 2.5 3.5 0.5 1.5 Time (ms) 2.5 3.5 Control signal to VCM (V) 0.15 0.1 0.05 −0.05 −0.1 (b) and for...
- 20
- 415
- 0
Tài liệu Hard Disk Drive Servo Systems- P8 docx
Ngày tải lên :
14/12/2013, 19:15
... accelerometer and a disturbance observer for hard disk drives IEEE/ASME Trans Mechatron 1998; 3:194– 201 177 Wang F, Abramovitch D, Franklin G A method for verifying measurements and models of linear and ... Caughey TK Derivation and application of the Fokker–Planck equation to discrete nonlinear dynamic systems subjected to white random excitation J Acoust Soc Am 1963; 35:1683–92 203 Crandall ST Perturbation ... Electrostatic microactuator and design considerations for HDD application IEEE Trans Magn 1999; 35:1000–5 304 References 153 Guo L, Chang JK, Hu X Track-following and seek/settle control schemes...
- 9
- 340
- 0
Vô hiệu hóa các ổ USB, CD-ROM, Floppy Disk và LS-120 bằng Group Policy potx
Ngày tải lên :
03/04/2014, 12:20
... Floppy" policynamels120="Disable High Capacity Floppy" explaintextusb="Disables the computers USB ports by disabling the usbstor.sys driver" explaintextcd="Disables the computers CD-ROM Drive by ... computers High Capacity Floppy Drive by disabling the sfloppy.sys driver" labeltextusb="Disable USB Ports" labeltextcd="Disable CD-ROM Drive" labeltextflpy="Disable Floppy Drive" labeltextls120="Disable ... ngược tùy chọn sang reenable cho ổ Áp dụng cho phiên Windows • Microsoft Windows Server 2003, Standard Edition (32-bit x86) • Microsoft Windows Server 2003, Enterprise Edition (32-bit x86) • Microsoft...
- 7
- 413
- 1
Hacking quota floppy disk eject motor
Ngày tải lên :
18/04/2014, 09:12
... smaller, and less cumbersome (so it's easier to mount on a 'bot) I this with a band saw (I also tinker in woodworking, so I already have one); if you don't have a band saw, a hacksaw and file ... anything to it), and use the brown and red leads as follows: For CCW rotation (facing the white output gear, with the metal "nub" pointing at you), connect the red wire to positive voltage, and brown ... Floppy motor "hacked" for a head Now prep your parts for gluing the surfaces you want the epoxy to "grab" need to be roughened a bit (via sandpaper), cleaned, and degreased For degreasing, I use...
- 5
- 168
- 0
