a) Time to market

b) The performance

1 Answer

a) Time to market :

  • Time to market is the time from development of an embedded system to sell it to customers is called time to market.
  •  For more profit, the time to market should be less for embedded systems.
  • A delay in product development cause large revenue loss.
  • The figure shows the losses due to delayed entry.


b) Performance :

Latency and throughput are the two main measures of performance.

thumb_up_alt 0 like thumb_down_alt 0 dislike

Related questions

Description : Differentiate general purpose processor, single purpose processor and ASIC with respect to design matrix, with suitable example.

Answer : General purpose processorGeneral purpose processor is a Programmable device.General purpose processor used in microprocessor.General purpose processor have general data path with large register ... Examples of application specific processor are embedded microcontroller, network processor and DSP.

Description :

Answer : A design metric is a measure of a implementations features such as cost, size, performance and power.Commonly used design metrics are:1.NRE cost:NRE stands for non recurring engineering cost. ... to check that manufacturing was correct.11.Safety:The probability that the system will not cause harm.

Description : Explain the need to consider following factors in design matrix of embedded system: (i) Processor (ii) Memory (iii) Power (iv) Non- recurring engineering cost.

Answer : 1. Processor: Selection of processor depends upon amount of processing power and the register width required. Powerful 8bit, 16 bit, 32 bit & 64bit processors are available. The clock speed ... system is designed any number of units can be manufactured without incurring any additional design cost.

Description : Explain memory write ability and storage permanence with suitable diagram.

Answer : Write ability and storage permanence of memories: Write ability is the manner and speed at which memory can be written. Storage permanence is the ability of memory to hold stored bits ... Holds bits after power is no longer supplied. High end and middle range of storage permanence.

Description : Explain object as a function argument using following points with suitable example: (i) Pass by value (ii) Pass by reference

Answer : (i) Pass by Value: When an object is passed by value to a function, a copy of that object is created and changes are reflected on the copy object not on original object. Example: #include #include class Example { int x; public: Example(int a)  {  x=a;  }  void print()  { cout

Description :

Explain FSM and concurrent process with example.

Answer : Finite State Machine (FSM): Finite state machine is a machine which have a transition from state to state. The system have some number of states and at a time the system can ... Y seconds. In sequential execution, the processor executes single task which causes poor processor utilization.

Description : What is design technology? Explain top down design process.

Answer : Design technology: Design technology is the manner in which we convert our concept desired system into an implementation. The three main design technologies are 1. Compilation/Synthesis ... general purpose processors and A Gate-level Netlist for special-purpose processors.

Description :

Answer : Various features of Linux that are used in embedded systems are as follows : Linux is multiuser operating system. Linux is open source and free. Linux can be ... Linux supports handling of errors. Real-time Linux supports the group scheduling functions.

Description : Explain the term “Streamlining”. State its effect on vehicle with suitable example.

Answer : Streamlining: To reduce the air resistance during running, the body of motor vehicle is so shaped that is streamlined. An arbitrary shape body of vehicle experiences a large air resistance. This leads to loss of power required ... (N/mm3) FD = Drag (N) CD = Coefficient of Drag Example:

Description : Explain the command line arguments with suitable example.

Answer : Java Command Line Argument: The java command-line argument is an argument i.e. passed at the time of running the java program. The arguments passed from the console can be received in the java program ... [0]); } } compile by > javac run by > java CommandLineExample sonoo

Description : Explain the concept of Dynamic method dispatch with suitable example.

Answer : Method overriding is one of the ways in which Java supports Runtime Polymorphism. Dynamic method dispatch is the mechanism by which a call to an overridden method is resolved at run time, rather than compile time. When an overridden ... B(); // object of type B C c = new C(); // object of type C 

Description : Explain dynamic method dispatch in Java with suitable example.

Answer : Dynamic method dispatch is the mechanism by which a call to an overridden method is resolved at run time, rather than compile time. When an overridden method is called through a superclass reference, Java determines which version ( ... ; // calling C's version of m1() ref.m1(); } }

Description : Explain the types of constructors in Java with suitable example.

Answer : Constructors are used to initialize an object as soon as it is created. Every time an object is created using the new' keyword, a constructor is invoked. If no constructor is defined in a class, java compiler creates ... of First Second Rectangle : "+ (r1.length*r1.breadth)); } }

Description : State and explain Thevenin’s theorem with suitable example.

Answer : Statement: Any network containing active and/or passive elements and one or more dependent and/or independent voltage/or current sources can be replaced by an equivalent network containing a voltage source ( ... given by IL =VTH/ (RTH+RL) figures above illustrate the concept of Thevenin s theorem

Description : Explain 3-2-1 principle of locations with suitable example and neat diagram

Answer : 3-2-1 Principle of Location used in Jig & Fixtures: It is also known as six pin or six point location principle. In this, the three adjacent locating surfaces of the blank (work piece) are ... [7] Another pin F in the second vertical face of the fixed body, arrests degree of freedom 9.

Description : Explain absolute and incremental co-ordinate systems, with suitable example. 

Answer : 1. Absolute Co- ordinate system: In Cartesian co ordinate geometry system using absolute measurement. Each point is always specified using same zero of given co ordinate system as shown in fig. It is ... to the system as a distance increment, measured from preceding point. Example:    

Description : Explain the concept of overloaded constructor in a class with suitable example.

Answer : Overloaded constructor: When more than one constructor function is defined in a same class then it is called as overloaded constructor. All constructors are defined with the same name as ... first constructor does not accept any argument and the second constructor accepts two integer arguments.

Description : Explain constructor in derived class with suitable example.

Answer : When a class is declared, a constructor can be declared inside the class to initialize data members. When a base class contains a constructor with one or more arguments then it is ... one argument. Derived class constructor accepts two values and passes one value to base class constructor.

Description : Explain single inheritance with suitable example.

Answer : When a single derived class is derived from only one base class then it is called as single inheritance. In a single inheritance, derived class can inherit some or all members of base class. It is implemented by specifying ... s; clrscr(); s.getdata(); s.putdata(); getch(); }

Description : Explain class with suitable example.

Answer : A class is a user defined data type which binds data and its associated functions together. It allows the data and functions to be hidden, if necessary from external use. Generally, a class ... for displaying their values. These functions provide the only access to data members of the class. 

Description : Explain destructor with suitable example. 

Answer : Destructor: 1. A destructor is a special member function whose task is to destroy the objects that have been created by constructor. 2. It does not construct the values for the data members of the class. 3. It is invoked ... main() { time t(2,43,56); t.display(); getch(); }

Description : Explain multiple constructors in a class with suitable example. 

Answer : Multiple constructors in a class means a class can contain more than one constructor. This is also known as constructor overloading. All constructors are defined with the same name as the class they belong to. All the ... default constructor integer(int a, int b) { m = a; n = b; cout

Description : With suitable example, explain CpiO and tar commands. 

Answer : cpio: The cpio command is one of standard Unix backup utilities. It stands for "copy in/out." It is much less well known and more rarely used Unix utility in comparison with tar. ... command creates the file archive test.tar from the two uncompressed files test1 and test2. 

Description : Explain Round Robin algorithm with suitable example.

Answer : It is preemptive scheduling algorithm. A small unit of time known as a time quantum or time slice is used for pre-emption of a currently running process. Ready queue is implemented as a circular ... has received 1 time quantum, the CPU returns to process P1 for an additional time quantum. 

Description : Explain virtual base class with suitable example.

Answer : Consider a situation where all three kinds of inheritance, namely, multilevel, multiple, hierarchical inheritance, are involved. This illustrated in fig a. the child has two direct base classes, parent1 & ... Grandparent { }; class Child: public Parent1,public Parent2 { };

Description : Explain event scheduling with suitable example.

Answer : Event scheduling: The assignment to signal x does not happen instantly. Each of the values assigned to x contain an afterclause. The mechanism for delaying the new value is called scheduling an event. By ... value. Event is nothing but change on target signal which is to be updated. Example: X

Description : Sketch internal design of 4x3 ROM.

Answer : The internal design of 4x3 ROM

Description : Describe different RT level computational and sequential components used to design single function processors.

Answer : RT-level combinational components:- To reduce the complexity in digital logic, combinational components are used, which are more powerful than logic gates.  Such combinational ... during a clock edge. An asynchronous inputs value effects the circuit independent of the clock.

Description : Explain the suitable example to convert a practical current source into equivalent voltage source.

Answer : The open- circuit voltage across terminals A and B is Voc = drop across R  =5x2=10V Hence, voltage source has a voltage of 10V and the same resistance of 2Ω

Description : Describe instance Of and dot (.) operators in Java with suitable example.

Answer : Instance of operator: The java instance of operator is used to test whether the object is an instance of the specified type (class or subclass or interface).  The instance of in java is also known as type ... by this' keyword c.getdata(); where getdata() is a method invoked on object c'. 

Description : State superposition theorem with suitable example

Answer : Superposition theorem: Superposition theorem states that in any linear network containing two or more sources, the response (current) in any element is equal to the algebraic sum of the ... by individual sources acting alone, while the other sources are replaced by their internal resistances.

Description : State Norton’s theorem with suitable example

Answer : Statement:- “Any linear, active, resistive, network containing one or more voltage and / or current sources can be replaced by an equivalent circuit containing a current source called Norton’s equivalent current ISC and an equivalent resistance in parallel.”

Description : Trace the development of male gametophyte of angiosperm upto two cell stage with suitable example. Or Draw self explanatory schematic representation of oogenesis.

Description : Describe incremental programming method with suitable example.

Answer : Incremental programming methodIn Cartesian co-ordinate geometry system using incremental measurement. Each point is always specified using the path differential from the preceding point position. So in such a ... applied to the system as a distance increment, measured from preceding point.

Description : With suitable example, describe use of this pointer.

Answer : 1. C++ uses a unique keyword called this to represent an object that invokes a member function. 2. This unique pointer is automatically passed to a member function when it is invoked. 3. this is a pointer that always ... ; public: void setdata(int x) { this ->a=x; } void putdata() { cout

Description : With suitable example, describe use of virtual function in polymorphism.

Answer : In order to achieve polymorphism, objects belonging to different classes should be able to respond to the same message at different instances which initiates the use of single pointer variable to refer to objects of ... void accept() { coutroll; coutname; } virtual void display() { cout

Description : Describe the concept of constructor with default argument with suitable example.

Answer : Definition: The constructor where we can assign default values for one or more parameters at the time of function declaration is called as constructor with default argument Example: class complex ... and 3.0 to img., because the actual parameters, when specified overrides the default value.

Description : Describe working of RAID-0 and RAID-1 with suitable example.

Answer : RAID 0 (Striped Disk Array Without Fault Tolerance):  This level strips the data into multiple available drives equally giving a very high read and write performance but offering no fault tolerance or redundancy.  ... No. of Disk: 2 Size of each disk: 100GB Usable Disk size: 100GB

Description : Describe the use of decision table in black box testing with the help of suitable example.

Answer : I.Decision table testing is black box test design technique to determine the test scenarios for complex business logic. ii. Decision tables provide a systematic way of stating complex business rules, which is useful for ... when conditions are missed, it is easy to see.  Example : 

Description : Define Boundary value analysis with suitable example.

Answer : Most of the defects in software products hover around conditions and boundaries. By conditions, we mean situations wherein, based on the values of various variables, certain actions would have to be taken. By ... follows: 0 - for lower limit boundary value 101 - for upper limit boundary value

Description : Describe with suitable example; frequency measurement by Lissajous patterns on CRO. 

Answer : * Initially the unknown frequency signal is connected to vertical deflection plates of CRO. * Now switch of the internal sweep generator of the horizontal deflecting system. * A standard source ... explain by following example: Assume horizontal input frequency is 10 kHz for following pattern

Description : What is Part Programming? Enlist Basic Requirement for part programming with suitable example.

Answer : Definition: The part program is a sequence of instructions, which describe the work, which has to be done on a part, in the form required by a computer under the control of a numerical ... Defining the work part geometry. (b) Defining the repetition work. (c) Specifying the operation sequence

Description : State the methods of task synchronization. Describe semaphore with suitable example.

Answer : The methods of task synchronization are: Semaphore Message queue. Mutual exclusion.  Dead lock. Mailboxes. Message Queues. Semaphores: It is a system of sending message by using flags. Multiple concurrent threads of execution ...   signal(Sem);  }  in process P2  {  wait(Sem);  S2;  }

Description : Explain Passive matrix LCD with diagram.

Answer : Passive Matrix: Passive-matrix is a technology that uses a grid of vertical and horizontal wires to display an image on the screen. Each pixel is controlled by an intersection of two wires in the grid. ... are no switching devices, and each pixel is addressed for more than one frame time. 

Description : Explain with sketch the interfacing of 4 ×4 matrix keypad with 8051 microcontroller.

Answer : Interfacing keypad Fig. shows how to interface the 4 X 4 matrix keypad to two ports in microcontroller. The rows are connected to an output port and the columns are connected to an input port. To ... key has been pressed, the next task is to find out which column the pressed key belongs to.

Description : Explain the following terms with sketch and suitable range: (i) King pin inclination (ii) Camber 

Answer : (i) King pin inclination It is the angle between vertical line and centre line of king pin or steering axis when viewed from the front of the vehicle. King pin inclination helps the straight ahead ... positive if the tilt is outward at the top. Camber should not generally exceed 2°. 

Description : Explain the working principle of the following dynamometers with suitable sketches, if necessary: (i) Hydraulic Dynamometer. (ii) Eddy Current Dynamometer.

Answer : (i) Hydraulic Dynamometer: In principle, hydraulic dynamometer construction is similar to that of a fluid flywheel. Hydraulic dynamometer consists of an impeller or inner rotating member coupled to the output shaft ... Eddy current oppose the rotor motion thus loading the engine.

Description : What is watchdog timer ? Explain the implementation of time out for ATM with block diagram and program.

Answer : A special type of timer is a watchdog timer, which will reset the system after a predefined timeout. Watchdog timer reset timer every X time unit, else timer generates a signal ... be loaded into timereg. This is to prevent erroneous software from unintentionally resetting the watchdog timer.

Description : Sun Petroleum Products departmentalizes by fuels, lubricants, and waxes and chemicals. This is an example of departmentalization by……….. (a) Product ; (b) Functions ; (c) Job design ; (d) Customer

Answer : (a) Product ;

Description : Explain the following terms with example  1) Conduction 2) Convection 3) Radiation 

Answer : 1) Conduction- It is the mode of heat transfer from one part of substance to another part of same substance or one substance to another without displacement of molecules or due to the vibrations of ... form of electromagnetic waves. Example: The heat energy receives from sun to the earth surface. 

← Prev Question Next Question →
editAsk a Question