Define the working of CU.

1 Answer

Answer :

CU consists of circuitry that generates signals to direct the entire computer system to execute the programs and controls the flow of information through the processor.

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Description : Define the working of ALU.

Last Answer : ALU is the combination of Arithmetic and Logic unit and it performs all the mathematical and logical operations.

Description : Define the working of CPU.

Last Answer : CPU is called the brain of the computer and the primary work of CPU is to convert data from input, process the data and giving results accordingly.

Description : Define USB Port.

Last Answer : A USB (Universal Serial Bus) port is a standard interface that allows a wide range of devices to be connected to a computer. It is a rectangular-shaped port that is typically located on ... different versions support different data transfer rates and power levels to support a wide range of devices.

Description : Define Parallel Port.

Last Answer : Parallel port lets an external parallel device communication with the computer by transmitting eight bits of data at a time and eight times faster than a serial port.

Description : Define Serial Port.

Last Answer : Serial port allows s a serial hardware device to communicate with the computer by transmitting one bit of information at a time such as mouse, modems and keyboard.

Description : Define Secondary Memory (ROM).

Last Answer : It is a type of memory that stores data permanently and data can be stored and retrieved but not be re-written.

Description : Define Main Memory (RAM).

Last Answer : Ans. It is a type of memory that stores data temporarily and data can be stored and retrieved much faster than the secondary storage.

Description : Define Computer Storage.

Last Answer : Computer storage refers to the various types of devices and media that are used to store and retain digital information within a computer system. This can include both primary storage, which is used ... time, and backup and archiving storage, which are used to store data for long-term preservation.

Description : Define Application Software.

Last Answer : The programs that are used to accomplish tasks specified by the user are called application software e.g. word processing, spreadsheet etc.

Description : Define System Software.

Last Answer : The programs that are responsible for controlling and managing the actual operations of the computer hardware are called system software e.g. operating system.

Description : Define Electronic Data Processing.

Last Answer : The process of performing arithmetic and logic operations with the help of computer is known as electronic data processing.

Description : What is meant by PORT?

Last Answer : A socket that enables an external device such as printer device to be attached to the computer.

Description : What is Control Bus in the Computer System?

Last Answer : Ans. It carries control information from the control unit to the other units.

Description : What is Address Bus in the Computer System?

Last Answer : In a computer system, the address bus is a set of parallel electrical conductors that are used to transmit memory addresses between the central processing unit (CPU) and main memory. The address bus ... system's architecture, and its width has a direct impact on the system's overall memory capacity.

Description : What is Data Bus in Computer System?

Last Answer : In a computer system, the data bus is a set of parallel electrical conductors that are used to transmit data between different components of the system. It is a communication pathway that allows ... and speed of the data bus are critical factors in determining the performance of a computer system.

Description : What is meant by BUS?

Last Answer : BUS is the common path that is used to send and receive data and commands to and from CPU and memory and all I/O devices.

Description : What is System Unit of computer?

Last Answer : The system unit, also known as the computer chassis or tower, is the main component of a desktop computer. It is the rectangular-shaped case that contains the majority of the computer's internal ... as well as a power supply unit and cooling systems to keep the internal components running smoothly.

Description : What is Output Unit of computer?

Last Answer : Output unit consists of output devices with which we get results e.g. monitor, printer etc.

Description : What is Input Unit of computer?

Last Answer : Input unit consists of input devices with which we send data to the central processing unit e.g. keyboard, mouse, scanner etc.

Description : What is meant by Computer Software?

Last Answer : The organized collections of computer data and instructions are called computer software.

Description : What is meant by Computer Hardware?

Last Answer : The physical parts of the computer that you can touch and feel are known as computer hardware.

Description : What is a Program?

Last Answer : The sequence of instructions given to computer for manipulating data is known as a program.

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Last Answer : (a) Fuel cells : These cells are the devices which convert the energy produced during combustion of fuels like H2, CH4, etc. directly into electrical energy. The electrode reaction for H2 – O2 fuel cell : (b) The galvanic cell may be represented as Zn (s) | Zn2+ (1M) || Cu2+ (1M) | Cu (s)

Description : Define coefficient of uniformity and coefficient of curvature. Calculate Cu and Cc if D10 = 0.90 mm, D30 = 1.18 mm, D60 = 2.30 mm.

Last Answer : Coefficient of uniformity: It is the ratio of D60 to D10 values of soil from particle size distribution curve, called as coefficient of uniformity. Coefficient of curvature: It is the ratio of square of D30 to product of D10 and D60 values of coefficient of curvature.

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Last Answer : During this reaction, the sodium is gaining oxygen and is being oxidized. Oxygen is getting reduced. During this reaction, copper oxide is losing oxygen and is being reduced. The hydrogen is gaining oxygen and is being oxidized.

Description : Identify the substances that are oxidised and the substances which are reduced in the following reactions. (i) 4Na(s) + O2(g) → 2Na2O(s) (ii) CuO (s) + H2(g) → Cu (s) + H2O(l) -Chemistry-10

Last Answer : (i) Substances oxidised is Na as it gains oxygen and oxygen is reduced. (ii) Substances reduced is Cu as hydrogen is oxidised as it gains oxygen.

Description : Calculate the number of Cu atoms in 0.635g of Cu. -Chemistry

Last Answer : No. of moles of Cu = Mass of Cu/Atomic mass = 0.635/63.5 =0.01 mole No. of Cu atoms = No. of moles × Avogadro constant = 0.01 × 6.022 × 1023 = 6.022 × 1023 Cu atoms.

Description : Identify the type of reaction(s) in the following equations. (i)CH4 + 2O2 CO2 + 2 H2O (ii) Pb(NO3)2 + 2KI ——–>Pbl2 + 2KNOs (iii) CaO + H2O ——–> Ca(OH)2 (iv) CuSO4 + Zn ——–> ZnSO4 + Cu -Chemistry

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Description : A spherical iron shell with external diameter 21 cm weighs 22775 x 5/21 grams. Find the thickness of the shell if the metal weighs 10 gms per cu cm. -Maths 9th

Last Answer : answer:

Description : It is responsible for all numerical and logical calculations. (a) CPU (b) CU (c) MU (d) ALU -Technology

Last Answer : (d) ALU is a digital circuit in which numerical and logical operations are defined.

Description : Which of the following does not represent an I/O device? (a) Speaker (b) Plotter (c) Joystick (d) CU -Technology

Last Answer : (d) CU is used to co-ordinate the input and the output devices of a computer system.

Description : PROBLEM EA Sample of moist soil has a water content of 20.0% and the moist unit weight of 21.09 KN/cu.meter. The specific gravity of the soil is 2.75. Compute the degree of saturation and the value of porosity?

Last Answer : two seconds

Description : What is the atomic number of Cu ?

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Description : the number of Cu 's zeros in CuSO4 ?

Last Answer : CuSO4 - Cu 's zaron number +2

Description : Cuo + c = what is the reaction in cu + co ?

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Description : Cu containing respiratory pigment is `:`

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Description : Cu is present in

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Description : `Ph-CH=CH-underset(O)underset(C)-H overset((i) CH_(3)CH_(2)MgBr)to overset((ii) H_(3)O^(o+))to(X) overset(Cu,Delta)to(Y)`

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Description : The following compounds are heated (i) `KNO_(3)` (ii) `Cu(NO_(3))_(2)` (iii) `Pb(NO_(3))_(2)` (iv) `NH_(4)NO_(3)` . Which of the following statement/s

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