Tag: meaning and elements of computer system

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Multiple choice meaning and elements of computer system computer in accounting accountancy

Which of the following statements is true for the dirty page in a page table?

  1. Helps to maintain LRU information

  2. Allows only read on a page

  3. Helps to avoid unnecessary writes on paging device

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A dirty bit (or modified bit) in a page table indicates that a page has been modified. This helps the OS know it must write the page back to disk before replacing it, avoiding unnecessary writes if the page hasn't changed.

Multiple choice meaning and elements of computer system computer in accounting accountancy

Many user terminals are connected simultaneously to same computer in process of ______________.

  1. Loosely coupled systems

  2. Tightly coupled systems

  3. Time sharing systems

  4. Threaded systems
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Time sharing systems allow multiple users to access a computer simultaneously by rapidly switching the CPU between tasks, giving each user the illusion of dedicated access.

Multiple choice meaning and elements of computer system computer in accounting accountancy

In analogue computer __________________.

  1. Input is first converted to digital form

  2. Input is never converted to digital form

  3. Output is displayed in digital form

  4. All of above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Analog computers work with continuous physical quantities (like voltage or pressure) and do not convert input into digital form for processing.

Multiple choice meaning and elements of computer system computer in accounting accountancy

The device used to carry digital data on analogue lines is called as _____________.

  1. Modem

  2. Multiplexer

  3. Modulator

  4. Demodulator
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A modem (modulator-demodulator) is the device that converts digital signals from a computer into analog signals for transmission over telephone lines and vice versa.

Multiple choice meaning and elements of computer system computer in accounting accountancy

A hybrid computer _________________.

  1. Resembles digital computer

  2. Resembles analogue computer

  3. Resembles both a digital and analogue computer

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A hybrid computer Resembles both a digital and analogue computer.

Hybrid computers are computers that exhibit features of analog computers and digital computers. The digital component normally serves as the controller and provides logical and numerical operations, while the analog component often serves as a solver of differential equations and other mathematically complex equations.

It contains the parts of an analoge computer and these from a digital computer. Hybrid Computer A hybrid is a combination of digital and analog computers. ... ... Difference between Analog computers digital computers & Hybrid computers Digital Computers operate on inputs and outputs which are in the form of ON-OFF signal.

Digital computer process data which is binary, i.e. in the form of 0 and 1. Analog computers operate on mathematical variables in the form of physical quantities that are continuously varying. For example temperature, pressure, voltages, etc. The basis of the working of the analog computers is modeling.