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Month: July 2016

What is Software Specification Activity? Describe the four main phases of software specification activity?

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Software Specification:

Software specification or requirements engineering is one of the four activities of software process. In software specification, the task is to identifying and defining the services to be provided from the system and what are the constraints in the operations of the system and in the development of the system. This stage, among the four activities of software process, is critical enough as this is the first stage of the process and defines the whole system. Missing or misunderstanding requirements, leaving gaps or errors will ultimately cause higher development cost, time and rework.  

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Describe the Waterfall Software Process Model with Advantages and Disadvantages

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Waterfall Software Process Model:

Waterfall model software process model was derived from general system engineering process and it is so called as the stages go top to bottom and while one stage of the process is complete it moves to the next stage and not supposed to come back to any previous stage. Shortly, the operation enters an stage if and only if the previous stage, if any, completes. However, in practice, things doesn’t happen this way.

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How To Add/Remove a Label To/From Multiple Posts at a Time in Blogger?

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Dear blogger users, when we start blogging with blogger we misuse labels in blogger in blog posts. We generally forget that labels in blogger blog posts are like categories. Sometimes we might also not use meaningful labels to blog posts. Instead we use meaningless labels to our blog posts. Thus after a year, when we … Read more

What is control unit? What are the functions of control unit?

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what is control unit and what are the functions of control unit

Control Unit

Control unit co-ordinates the transfer of data between registers of CPU or microprocessor and ALU. Control unit serves the instructions for ALU. Along with this, control unit, as its name implies, controls every other parts of the machine, their co-ordinations, traffic etc.  

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Discuss the organization and functions of ALU or Arithmetic & Logic Unit

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Arithmetic and Logic Unit (ALU): Arithmetic and Logic Unit is a like a calculator to a computer. ALU performs all arithmetic operations along with decision making functions. In modern CPU or Microprocessors, there can be more than one integrated ALU to speed up arithmetical and logical operations, such as; integer unit, floating point unit etc. … Read more

What is Microprocessor? What are the functions of microprocessor?

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What is Microprocessor. What are the functions of microprocessor

Microprocessor

A type of computer processors that incorporates the functions of a computer’s center processing unit (CPU) onto a single integrated circuit is called a microprocessor. A microprocessor is a VLSI (Very Large Scale Integration) Silicon Chip. Microprocessor accepts digital or binary data, processes it according to instructions stored in it’s memory and provides results as output.  

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What is CPU in computer? What are the functions of CPU in computer?

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CPU (Central Processing Unit) in computer: CPU or central processing unit in computer is an electronic circuitry that carries out the instruction given by a computer program. CPU in computer execute instruction by performing basic arithmetic, logical, control and I/O operations as required per instruction. CPU in computer is considered to be the brain of … Read more