Can you help by answering this question?

Justify the defination of a computer?

23 views
in Computer Engineering by
A group of computers connected together through a central sever using cables and other communication devices is known as ____. 

a) Network b) LAN c) WAN d) None of the above

Your answer

Thanks for your contribution. Feel free to answer this question. Please avoid short answer. Your answer is most welcome. Be genuine.

Upload image or document:

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
Are you a robot ? (Y = Yes / N = No)
To avoid this verification in future, please log in or register.

1 Answer

0 votes
by

A group of computers connected together through a central sever using cables and other communication devices is known as Network 

Related questions

0 answers 20 views

The internet standard that allows you to exchange files with other computers on the Internet is known as  (1) HTTP (2) FTP (3) DNS (4) WWW 

asked Apr 11, 2018 in Computer Engineering by Shimroz123
1 answer 18 views

Two non -inverting amplifiers, one having a unity gain and the other having again of twenty are made using identical operational amplifiers. As compared to the unity gain amplifier, the amplifier with gain twenty has

asked Apr 29, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 33 views

Two 220 volt lamps, one of 60 watt and the other of 75 watt are connected in series across a 440 volt supply. The potential difference across 60 watt lamp will be: A) 195 volt B) 220 volt C) 245 volt D) 440 volt

asked Jun 4, 2018 in Electrical Engineering by Shimroz123
0 answers 1,178 views

A combination of various colors used for text and other presentation elements is called  (1) Fill effect (2) Template (3) Color scheme (4) C-set 

asked Apr 10, 2018 in Computer Engineering by Shimroz123
1 answer 53 views

Three equal resistors connected in series across a source of emf together dissipate 10 watts of power. What would be the power dissipated in the same resistors when they are connected in parallel across the same source of emf? 

asked Mar 31, 2018 in Electrical Engineering by Shimroz123
0 answers 22 views

An IDMT relay of rating 5A, 2.2s and having a relay setting of 125% is connected to a supply circuit through a CT having a ratio of 400/5. The plug setting multiplier of IDMT relay in the event of fault current of 4000 A will be a. 5 b. 8 c. 10 d. 125

asked May 24, 2018 in Switchgear And Protection by Shimroz123
1 answer 17 views

Personal Computers use a number of chips mounted on a main circuit board. What is the common name for such boards? A. Mother boards B. Daughter boards C. Father boards D. Bread boards 

asked Apr 12, 2018 in Computer Engineering by Shimroz123
1 answer 21 views

Of the following, ____ is different from the group.  a) Windows b) MS-Word c) MS-Excel d) MS-PowerPoint

asked May 13, 2018 in Computer Engineering by Shimroz123
0 answers 20 views

Which of the following is a group of one or more attributes that uniquely identifies a row?  (1) Key (2) Tuple (3) Determinant (4) Relation

asked Apr 10, 2018 in Computer Engineering by Shimroz123
1 answer 26 views

When measuring insulation resistance of cables using d.c. source, the galvanometer used should be initially short circuited because  (A) Cables have a low value of capacitance which draws a high value of charging current (B) Cables have a low value of initial resistance (C) Cables have a high value of capacitance which draws a high value of charging current (D) Cables have a low value of capacitance and initial resistance

asked Apr 28, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 28 views

Consider a circuit with four 10 Ω resistors connected in parallel and the current flowing through the circuit is 5 A. What will be the current if the above 4 resistors are connected in parallel? A) 5 A B) 50 A C) 500 A D) None of these

asked Apr 29, 2018 in Electrical Engineering by Shimroz123
1 answer 460 views

Which of the following are components of Central Processing Unit (CPU)?  (A) Arithmetic logic unit, Mouse  (B) Arithmetic logic unit, Control unit  (C) Arithmetic logic unit, Integrated Circuits  (D) Control Unit, Monitor

asked May 8, 2018 in Computer Engineering by Shimroz123
2 answers 38 views

The IC chips, used in computers, is made of  (1) Iron oxide (2) Silicon (3) Graphite (4) Silica

asked May 1, 2018 in Computer Engineering by Shimroz123
1 answer 55 views

 ____ is the software that controls all the other software programs and allows to perform basic tasks.  a) Software b) Hardware c) Windows d) Operating System

asked May 13, 2018 in Computer Engineering by Shimroz123
1 answer 43 views

Six MOSFETs connected in a bridge configuration (having no other power device) must be operated as a Voltage Source Inverter (VSI) . This statement is  (A) True, because being majority carrier devices MOSFETs are voltage driven. (B) True, because MOSFETs hav inherently anti-parallel diodes (C) False, because it ... both as Current Source Inverter (CSI) or a VSI (D) False, because MOSFETs can be operated as excellent constant current sources in the saturation region.

asked May 18, 2018 in Power electronics converters by Shimroz123
0 answers 9 views

What is the central device in star topology?  (1) STP server (2) Hub/switch (3) PDC (4) Router

asked Apr 10, 2018 in Computer Engineering by Shimroz123
1 answer 16 views

Modern computers are reliable but they don't have ____.  a) Fast b) Powerful c) Cheap d) Self thinking

asked May 13, 2018 in Computer Engineering by Shimroz123
1 answer 18 views

Four amperes of current are measured through a 24 ohms resistor connected across a voltage source. How much voltage does the source produce? A.960 V B.9.6 V C.96 V D.8 V

asked May 15, 2018 in Basic concepts by Shimroz123
1 answer 18 views

What amount of current will flow through resistance of 10 ohms when it is connected across a potential difference of 20 volts? A.30 amperes B.5 amperes C.10 amperes D.2 amperes

asked May 15, 2018 in Basic concepts by Shimroz123
1 answer 18 views

In a three phase transformer, if the primary side is connected in star and secondary side is connected in delta, the angle difference between phase voltage in the two cases will be: (A) delta side will lag by -30° (B) star side will lag by -30° (C) delta side will lead by 30° (D) star side will lead by -30°

asked Apr 11, 2018 in Computer Engineering by Shimroz123
1 answer 56 views

The inertia constants of two groups of machines which do not swing together are M1 and M2. The equivalent inertia constant of the system is

asked May 3, 2018 in Electrical Machine by Shimroz123
0 answers 18 views

What is the force that holds protons and neutrons together in the nucleus of an atom?

asked Mar 10, 2018 in Engineering electromagnetic by Quiz
1 answer 9 views

A radio receiver is placed at one corner of a table and again placed at some other corner of the same table. Loudspeaker output is changed because  (a) image interference is reduced (b) adjacent channel interference is increased (c) of fading (d) line of sight propagation is not utilized

asked May 15, 2018 in Electronics communication by Shimroz123
1 answer 17 views

Of the following, ____ would be considered as a way through which a computer virus can enter into a computer system.  a) E-mail with attachments b) Downloading the data from sites c) Operating the system without antivirus software d) All of the above

asked May 13, 2018 in Computer Engineering by Shimroz123
0 answers 45 views

Which type of system puts the user into direct conversation with the computer through a keyboard  (1) real time processing (2) Interactive processing (3) batch processing (4) timesharing 

asked Apr 11, 2018 in Computer Engineering by Shimroz123
1 answer 19 views

The main limitation for power handling capability of short length transmission lines and cables is (A) power factor (B) stability (C) thermal effect limit (D) conductor size

asked Apr 25, 2018 in Electrical Engineering by Shimroz123
1 answer 21 views

If the displayed system time and date is wrong, you can reset it using :  (A) Task bar (B) Menu bar (C) Desk top (D) Control panel

asked May 8, 2018 in Computer Engineering by Shimroz123
0 answers 23 views

On a systems flowchart, the online manual keeping of input data is identified by using the  (a) online storage symbol (b) online keyboard symbol (c) keeping operation symbols (d) manual operation symbols

asked May 23, 2018 in Computer Engineering by Shimroz123
1 answer 10 views

Electric ovens using heating elements made of _________can produce a temperature up to 3000°C. (A) nickel (B) graphite (C) chromium (D) iron

asked Apr 11, 2018 in Computer Engineering by Shimroz123
0 answers 17 views

Which of the following permutation can be obtained in the output (in the same order) using a stack assuming that the input is the sequence 1, 2, 3, 4, 5 in that order?  (1) 3, 4, 5, 1, 2 (2) 3, 4, 5, 2, 1 (3) 1, 5, 2, 3, 4 (4) 5, 4, 3, 1, 2 

asked Apr 10, 2018 in Computer Engineering by Shimroz123
1 answer 26 views

A generator is connected through a 20 MVA, 13.8/138 kV step down transformer, to a transmission line. At the receiving end of the line a load is supplied through a step down transformer of 10 MVA, 138/69 kV rating. A 0.72 pu. load, evaluated on load side transformer ratings as base values , is supplied from the above system. For system base values of 10 MVA and 69 kV in load circuit, the value of the load (in per unit) in generator will be (A) 36 (B) 1.44 (C) 0.72 (D) 0.18

asked May 25, 2018 in Power system by Shimroz123
0 answers 24 views

A 750 Hp, 250 V, 1200 r/min DC motor is connected to a 208 V, 3 phase, 60 Hz, line using a 3 phase bridge converter. The full load armature current is 2500 A and the armature resistance is 4 m ohm. Calculate the required firing angle under rated full load conditions.  (A) 45 deg (B) 208 deg (C) 27 deg (D) 32 deg 

asked Apr 5, 2018 in Electrical Engineering by Shimroz123
1 answer 104 views

Compare individual and group drive on any four points.  

asked Oct 12, 2018 in Industry Electrical Systems-II by Shimroz123
0 answers 50 views

A single phase transmission line and a telephone line are both symmetrically strung one below the other, in horizontal configurations, on a common tower, The shortest and longest distances between the phase and telephone conductors are 2.5 m and 3 m respectively. The voltage (volt/km) induced in the telephone circuit, due to 50 Hz current of 100 amps in the power circuit is (A) 4.81 (B) 3.56 (C) 2.29 (D) 1.27

asked May 25, 2018 in Power system by Shimroz123
1 answer 13 views

A bulb in a staircase has two switches, one switch being at the ground floor and the other one at the first floor. The bulb can be turned ON and also can be turned OFF by any one of the switches irrespective of the state of the other switch. The logic of switching of the bulb resembles  (A) and AND gate (B) an OR gate (C) an XOR gate (D) a NAND gate

asked May 18, 2018 in Digital Electronics by Shimroz123
1 answer 11 views
1 answer 11 views

The tiny block formed by the arrangement of a small group of atoms is called the

asked Mar 28, 2018 in Electrical engineering materials by Shimroz123
1 answer 24 views

The building block for all information that flows through a computer ____.  a) Bit b) Byte c) Both (a) and (b) d) None of the above

asked May 13, 2018 in Computer Engineering by Shimroz123
0 answers 12 views

Two voltmeters of same range, one moving iron type and other permanent magnet moving coil type, are connected in parallel for measuring a.c. supply voltage. If the reading of MI type is 300V, the reading of PMMC type will be (a) zero (b) higher-than M.I. type (c) lower than M.I. type (d) same

asked May 25, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 13 views

An HVDC link consist of rectifier, inverter transmission line and other equipments. Which one of the following is true for this link ?  (A) The transmission line produces/ supplies reactive power (B) The rectifier consumes reactive power and the inverter supplies reactive power from/ to the respective connected ... power to/ from the respective connected AC systems (D) Both the converters (rectifier and inverter) consume reactive power from the respective connected AC systems

asked May 25, 2018 in Power system by Shimroz123
1 answer 16 views

The line of sight communication requires transmit and receive antenna to face each other. If the transmit antenna is vertically polarized, for the best reception the receive antenna should be:  (1) Horizontally polarized (2) Vertically polarized (3) At 45° with respect to the horizontal polarization (4) At 45° with respect to the vertical polarization

asked Apr 9, 2018 in Electronics Engineering by Shimroz123
1 answer 17 views

Approximately how many milliamperes of current flow through a circuit with a 40 V source and 6.8 k ohms of resistance? A.27.2 mA B.59 mA C.5.9 mA D.590 mA

asked May 15, 2018 in Basic concepts by Shimroz123
0 answers 14 views

A SCR has an anode supply of sine voltage 200V rms, 50 Hz applied through a 100Q resistor and fired at an angle of 60°. Assuming no voltage drop, the rms value of the output voltage is : (A) 89,7 V (B) 126.7 V (C) 166.7 V (D) 288.28 V

asked Apr 14, 2018 in Electrical Engineering by Shimroz123
1 answer 12 views

The amount of current flowing through a circuit with a 40 V source and 6.8 kΩ of resistance is equal to: A. 27.2 mA B. 59 mA C. 5.9 mA D. 590 mA

asked Apr 12, 2018 in Electrical Engineering by Shimroz123
1 answer 11 views

Transmission of power by a.c. cables is impossible beyond   (a) 500 km (b) 300 km (c) 250 km (d) 45 km 

asked May 13, 2018 in Electric Power Transmission by Shimroz123
1 answer 73 views

The size of a conductor used in power cables depends on the:  (A) operating voltage  (C) current to be carried (B) power factor (D) type of insulation used

asked Apr 9, 2018 in Electrical Engineering by Shimroz123
1 answer 10 views

A keyword can be used as an identifier by using the  A) prefix # B) prefix @ C) prefix $ D) prefix x

asked Apr 11, 2018 in Computer Engineering by Shimroz123
0 answers 26 views

Using the F11 shortcut key to create a chart on chart sheet creates  (1) A default chart (2) A 2-dimensional column chart (3) A 2-dimensional bar chart (4) A 3-dimensional line chart

asked Apr 11, 2018 in Computer Engineering by Shimroz123

Welcome to electronics2electrical.com here you can ask questions related to electrical, electronics, mechanical, telecommunication, instrumentation, computer, mathematics, physics etc.
Be respectful to all the members. Do not copy and paste the answers from other websites which have copyright content. While asking question give full details about it.

Categories

Most popular tags

power motor dc circuit transformer voltage current used system phase resistance factor synchronous load ac energy induction electric generator series frequency between speed capacitor use electrical meter line difference control type mosfet transmission magnetic plant high single instrument bjt unit source advantages function diode and machine winding field define torque parallel amplifier supply shunt thyristor motors electricity arduino maximum time relay armature problem value on transformers types coil diagram state flow ratio material three formula starting direction theorem method emf operating efficiency digital wave microprocessor test instruments inductance loss measure operation connected signal low applications effect single-phase network temperature working constant losses different law wattmeter measuring compare controlled breaker drive device logic rc full switch flux wire resistivity disadvantages free of materials machines angle force converter conductor transistor gain open protection scr core measurement number bridge principle generators reactance circuits negative the friction iron loop short pole battery conservation steam resistors hysteresis computer using analog lines secondary station gate a rectifier inverter linear induced relays nuclear capacitance basic characteristics design direct work rotor electronics ammeter forces diesel damping rlc connection factors capacitors minimum insulation moving regulation running self systems air fault range main stability quality starter igbt eddy alternator ideal rl average 3-phase plants arc thermal error fuzzy biasing dielectric pressure balanced superposition errors copper rotation feedback impedance measured electronic electrons charge inductive transfer explain start off back curve over solar is three-phase tariff locomotive peak bias zener engineering commutator surge conductors rating universal potentiometer density permanent mechanical transducer capacity memory adc excitation two fuse pure harmonics application semiconductor inductor internal pmmc reaction welding resonance traction permeability breakers rms designed electromagnetic si generation brushes switching capacitive shaded rate 1 distribution resistor methods delta star oscillator reluctance simplification algebra 8085 boolean weston dynamometer insulating strength installation definition fuel heating earth units

8,471 questions

7,069 answers

134 comments

3,088 users

...