Email or Free mail? 1. What are the benefits and risks that Provident faces when considering maintaining their own email system or moving to services such as Gmail? 2. How is email different, if at...

Production systems can be divided into two categories or levels. Name and briefly define the two levels.

What is lean production?

Write the part program to drill the holes in the part shown in Figure P7.26. The part is 12.0 mm thick. Cutting speed = 100 m/min and feed = 0.06 mm/rev. Use the lower left corner of the part as the...

Name the five PLC programming methods identified in the International Standard for Programmable Controllers (IEC 1131-3).

A 300 ft long roller conveyor, which operates at a velocity = 80 ft/min, is used to move pallets between load and unload stations. Each pallet carries 12 parts. Cycle time to load a pallet is 15 sec...

An automated storage/retrieval system installed in a warehouse has five aisles. The storage racks in each aisle are 30 ft high and 150 ft long. The S/R machine for each aisle travels at a horizontal...

Your company is seeking proposals for an automated storage/retrieval system that will have a throughput rate of 300 storage/retrieval transactions/hour during the one 8-hour shift per day. The...

A carousel storage system is to be designed to serve a mechanical assembly plant. The specifications on the system are that it must have a total of 400 storage bins and a throughput of at least 125...

What is Six Sigma?

Why is defects per million (DPM) not necessarily the same as defects per million opportunities (DPMO)?

What are the three main objectives of Total Quality Management?

What is quality control testing as distinguished from inspection?

Solve previous Problem 25.12 except that the current inventory on hand and on order for S3, C6, and M6 is as follows: for S3, inventory on hand is 2 units and quantity on order is zero; for C6,...

What is takt time?

Identify the different departments in a company and why they must work together to achieve success.

Identify the challenges of business mobility.

Describe artificial intelligence, and identify its five main types.

Describe the seven phases of the systems development life cycle.

1. One of the problems with DIA's baggage system was inadequate testing. Why is testing important to a project's success? Why do so many projects decide to skip testing? 2. Evaluate the different...

Identify the environmental impacts associated with MIS.

Explain why IT is both a business pressure and an enabler of response activities that counter business pressures.

What might the impact of a flat world be on your standard of living?

Describe Porter's value chain model. What is the relationship between the competitive forces model and the value chain model?

Compare and contrast master data and transactional data, and provide an example of each one.

What is master data management? What does it have to do with high-quality data?

Explain why it is important to capture and manage knowledge.

How does an FAIS support management by exception? How does it support on-demand reports?

Describe the role of a TPS in a service organization?

Describe the relationship between TPS and FAIS?

Explain how a supply chain approach may be part of a company's overall strategy?

Distinguish between operational CRM systems and analytical CRM systems?

You are the CIO of a small company with a rapidly growing customer base. Which CRM system would you use: on-premise CRM system, on-demand CRM system, or open-source CRM system? Remember that...

Distinguish between primary storage and secondary storage?

What is artificial intelligence?

What is an expert system?

Because a sailboat cannot sail directly into the wind, and traveling straight downwind is usually slow, the shortest sailing distance is rarely a straight line. Thus sailboats tack upwind-the...

Future advanced commercial aircraft will be E-enabled. This will allow the aircraft to take advantage of continuing improvements in computer power and network growth. Aircraft can continuously...

The story is told about the sergeant who stopped at the jewelry store every morning at nine o'clock and compared and reset his watch with the chronometer in the window. Finally, one day the sergeant...

For electromechanical systems that require large power amplification, rotary amplifiers are often used [8, 19]. An amplidyne is a power amplifying rotary amplifier. An amplidyne and a servomotor are...

Consider the spring-mass system depicted in Figure P2.15. Determine a differential equation to describe the motion of the mass m. Obtain the system response x(t) with the initial conditions x(0) = x0...

The source follower amplifier provides lower output impedance and essentially unity gain. The circuit diagram is shown in Figure P2.20(a), and the small-signal model is shown in Figure P2.20(b).This...

A hydraulic servomechanism with mechanical feedback is shown in Figure P2.21 [18]. The power piston has an area equal to A. When the valve is moved a small amount z, the oil will flow through to the...

We desire to balance a rolling ball on a tilting beam as shown in Figure P2.29. We will assume the motor input current i controls the torque with negligible friction. Assume the beam may be balanced...

The suspension system for one wheel of an old-fashioned pickup truck is illustrated in Figure P2.34. The mass of the vehicle is m1 and the mass of the wheel is m2. The suspension spring has a spring...

Consider the case of the two masses connected as shown in Figure E3.15. The sliding friction of each mass has the constant b. Determine a state variable matrix differential equation. Sliding friction...

Two carts with negligible rolling friction are connected as shown in Figure E3.16. An input force is u(t). The output is the position of cart 2, that is, y(t) = q(t). Determine a state space...

A system is described by its transfer function (a) Determine a state variable model. (b) Determine Φ(t), the state transition matrix. 8(s 5 Y(s) R(s) = T(s)--12s2 + 44s + 48

The dynamics of a controlled submarine are significantly different from those of an aircraft, missile, or surface ship. This difference results primarily from the moment in the vertical plane due to...

An RLC network is shown in Figure P3.3. Define the state variables as x1 = iL and x2 = vc. Obtain the state differential equation. FIGURE P3.3 RLC circuit.

A spring-mass-damper system, is used as a shock absorber for a large high-performance motorcycle. The original parameters selected are m = 1 kg, b = 9 N s/m. and k = 20 N/m. (a) Determine the system...

Consider the closed-loop control system in Figure CP3.6. (a) Determine a state variable representation of the controller. (b) Repeat part (a) for the process. (c) With the controller and process in...

An op-amp circuit can be used to generate a short pulse. The circuit shown in Figure DP4.5 can generate the pulse v0(t) = 5e-100t, t > 0, when the input v(t) is a unit step [6]. Select appropriate...

A closed-loop control system transfer function T(s) has two dominant complex conjugate poles. Sketch the region in the left-hand 5-plane where the complex poles should be located to meet the given...

A tank level regulator control is shown in Figure AP4.1(a). It is desired to regulate the level h in response to a disturbance change q3. The block diagram shows small variable changes about the...

A closed-loop speed control system is subjected to a disturbance due to a load, as shown in Figure DP4.1. The desired speed is Ïd(t) = 100 rad/s, and the load disturbance is a unit step input...

A closed-loop feedback system is shown in Figure E6.25. For what range of values of the parameters K and p is the system stable? Yis) FIGURE E6.25 and p. Closed-loop system with parameters K

A magnetic amplifier with a low-output impedance is shown in Figure P5.16 in cascade with a low-pass filter and a preamplifier. The amplifier has a high-input impedance and a gain of 1 and is used...

Electronic pacemakers for human hearts regulate the speed of the heart pump. A proposed closed-loop system that includes a pacemaker and the measurement of the heart rate is shown in Figure P5.17 [2,...

Consider the case of a navy pilot landing an aircraft on an aircraft carrier. The pilot has three basic tasks. The first task is guiding the aircraft's approach to the ship along the extended...

Consider the closed-loop system in Figure AP6.5. Suppose that all gains are positive, that is, K1 > 0, K2 > 0, K3 > 0, K4 > 0, and K5 > 0. (a) Determine the closed-loop transfer function T(s) =...

Consider the single-input, single-output system as described by x(t) = Ax(t) + Bu(t) y(t) = Cx(t) where Assume that the input is a linear combination of the states, that is, u(t) = -Kx(t) + r(t),...

A unity feedback system has the loop transfer function Find (a) The breakaway point on the real axis and the gain K for this point (b) The gain and the roots when two roots lie on the imaginary axis,...

A single-loop negative feedback system has a loop transfer function (a) Sketch the root locus for 0 ¤ K ¤ to indicate the significant features of the locus. (b) Determine the range of...

A magnetically levitated high-speed train "flies" on an air gap above its rail system, as shown in Figure AP7.2(a) [24]. The air gap control system has a unity feedback system with a loop transfer...

A spring-mass-damper system is shown in Figure AP8.1(a).The Bode diagram obtained by experimental means using a sinusoidal forcing function is shown FIGURE AP8.1 A spring-mass damper system. Spring,...

A large helicopter uses two tandem rotors rotating in opposite directions, as shown in Figure P7.33(a). The controller adjusts the tilt angle of the main rotor and thus the forward motion as shown in...

Most commercial op-amps are designed to be unity-gain stable [26]. That is, they are stable when used in a unity-gain configuration. To achieve higher bandwidth, some op-amps relax the requirement to...

For the successful development of space projects, robotics and automation will be a key technology. Autonomous and dexterous space robots can reduce the workload of astronauts and increase...

A mobile robot for toxic waste cleanup is shown in Figure DP9.1(a) [23]. The closed-loop speed control is represented by Figure 9.1 with H{s) = 1. The Nichols chart in Figure DP9.1(b) shows the plot...

A DC motor control system with unity feedback has the form. Select K1 and K2 so that the system response has a settling time (with a 2% criterion) less than 1 second and an overshoot less than 5% for...

Tliere have been significant developments in the application of robotics technology to nuclear power plant maintenance problems. Thus far, robotics technology in the nuclear industry has been used...

State whether the following signals are discrete or continuous: (a) Elevation contours on a map. (b) Temperature in a room. (c) Digital clock display. (d) The score of a basketball game. (e) The...

Suppose that a machine has 48-bit virtual addresses and 32-bit physical addresses. (a) If pages are 4 KB, how many entries are in the page table if it has only a single level? Explain. (b) Suppose...

You are given the following data about a virtual memory system: (a)The TLB can hold 1024 entries and can be accessed in 1 clock cycle (1 nsec). (b) A page table entry can be found in 100 clock cycles...

A computer has 32-bit virtual addresses and 4-KB pages. The program and data together fit in the lowest page (0-4095) The stack fits in the highest page. How many entries are needed in the page table...

Below is an execution trace of a program fragment for a computer with 512-byte pages. The program is located at address 1020, and its stack pointer is at 8192 (the stack grows toward 0). Give the...

How can the associative memory device needed for a TLB be implemented in hardware, and what are the implications of such a design for expandability?

A swapping system eliminates holes by compaction. Assuming a random distribution of many holes and many data segments and a time to read or write a 32-bit memory word of 4 nsec, about how long does...

Suppose that two processes A and B share a page that is not in memory. If process A faults on the shared page, the page table entry for process A must be updated once the page is read into memory....

Consider a swapping system in which memory consists of the following hole sizes in memory order: 10 MB, 4 MB, 20 MB, 18 MB, 7 MB, 9 MB, 12 MB, and 15 MB. Which hole is taken for successive segment...

For each of the following decimal virtual addresses, compute the virtual page number and offset for a 4-KB page and for an 8 KB page: 20000, 32768, 60000.

Describe the effects of a corrupted data block for a given file for: (a) contiguous, (b) linked, and (c) indexed (or table based).

The clock interrupt handler on a certain computer requires 2 msec (including process switching overhead) per clock tick. The clock runs at 60 Hz. What fraction of the CPU is devoted to the clock?

A system simulates multiple clocks by chaining all pending clock requests together as shown in Fig. 5-30. Suppose the current time is 5000 and there are pending clock requests for time 5008, 5012,...

A bitmap terminal contains 1600 by 1200 pixels. To scroll a window, the CPU (or controller) must move all the lines of text upward by copying their bits from one part of the video RAM to another. If...

A user at a terminal issues a command to an editor to delete the word on line 5 occupying character positions 7 through and including 12. Assuming the cursor is not on line 5 when the command is...

One way to eliminate circular wait is to have rule saying that a process is entitled only to a single resource at any moment. Give an example to show that this restriction is unacceptable in many...

If a CPU issues one memory request every instruction and the computer runs at 200 MIPS, about how many CPUs will it take to saturate a 400-MHz bus? Assume that a memory reference requires one bus...

Secret-key cryptography is more efficient than public-key cryptography, but requires the sender and receiver to agree on a key in advance. Suppose that the sender and receiver have never met, but...

When must a Group by clause be used in a query?

Given the following specifications for an external cache memory: four-way set associative; line size of two 16-bit words; able to accommodate a total of 4K 32-bit words from main memory; used with a...

Another representation of binary integers that is sometimes encountered is ones complement. Positive integers are represented in the same way as sign magnitude. A negative integer is represented by...

(a) Distinguish between the focuses of COSO and CobiT. (b) List the four CobiT domains. (c) How many high-level control objectives does CobiT have? (d) Which domain has the most control objectives?...

(a) What is the definition of a VPN? (b) Why do companies transmit over the Internet? (c) Why do they transmit over untrusted wireless networks? (d) Distinguish between the three types of VPNs. (e)...

(a) Why is the word symmetric used in symmetric key encryption? (b) When two parties communicate with each other using symmetric key encryption, how many keys are used in total? (c) What type of...

(a) What is black holing? (b) Is black holing an effective defense against DoS attacks? Why? (c) How can the effects of SYN floods be mitigated? (d) What is a false opening? (e) Why is rate limiting...

a) Why do hackers attack browsers? b) What is mobile code? c) Why is it called mobile code? d) What is a client-side script? e) What is a Java applet? f) Why is Active-X dangerous? g) How do...

a) What is eavesdropping? b) Why can DoS attacks be successful even if they only increase latency slightly? c) Why is caller impersonation especially dangerous in VoIP? d) Why are hacking and malware...

a) What is case law? b) What are jurisdictions? c) What is cyberlaw? d) What are the three levels of U.S. federal courts? e) Which levels can create precedents? f) Does federal jurisdiction typically...