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What is connecting device? Describe 4 connecting devices.

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Connecting Devices:  Devices that are used to connect other devices are called connecting devices. That is, connecting device is a device that connects. There are 4 types of connecting devices. They are as follows, i. Repeater:  A repeater is a device that receives signals and before it become too weak or corrupted the repeater regenerates … Read more

What is computer threat? Describe 6 computer threats.

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Computer Threats: A threat, in general, is a person or a thing likely to cause damage or danger. In computer security, a computer threat is a possible danger that might exploit vulnerability to breach security and therefore cause possible harm. A computer threat is any activity that can cause damage to private or any data … Read more

What is malware? Describe any 5 types of computer malware with an example.

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Malware Malicious Software or Malware is any piece of software that disrupts computer operation, steal information, gain access to private systems or display unwanted advertising. Malware causes intentional harm, direct or indirect, to the computer by damaging files etc. or to the user by stealing sensitive information of the user from the computer etc. A … Read more

What is Motherboard? What are the role or functions of motherboard?

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Motherboard: A motherboard is a printed circuit board (PCB) that holds other modular devices, both required and additional, and facilitate communication among the devices to actually have the computer be functional. Motherboard is like a backbone to a computer system. Components like CPU, RAM, Harddisks along with additional devices like TV Cards, graphics etc. all … Read more

Define Instruction Set Architecture. What are the main objectives of ISA in computer systems.

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Instruction Set Architecture (ISA): An instruction set is the interface between a computer’s software and its hardware, and thereby enables the independent development of these two computing realms. ISA is the set of basic instructions that a processor understands. ISA includes functional definition of operations, modes, and storage locations supported by hardware and precise description of … Read more

What are CISC & RISC? What are differences between CISC and RISC?

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The instruction set or the instruction set architecture (ISA) is the set of basic instructions that a processor understands. The instruction set is a portion of what makes up an architecture. Read More: Define Instruction Set Architecture. What are the main objectives of ISA in computer systems. Two initial types of instruction set architecture are … Read more

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

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software-specification-activity-with-4-phases

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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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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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