______ transfers the link through a set of small pins arranged in the form of matrix

Appeared in: AIIMS Manglagiri NO - 2019

Explanation

The defining characteristic described in the question is the use of 'a set of small pins arranged in the form of a matrix'.
This is the exact working principle of a Dot Matrix printer.
It is an impact printer where the print head contains these pins, which fire against an ink-soaked ribbon to press ink onto the paper.
The combination of dots from the matrix of pins forms the characters and images.

Option B: A Laser printer does not use pins. It uses a non-impact technology involving a laser, a charged drum, and powdered ink (toner) that is fused to the paper with heat.
Option C: This option is incorrect because a correct answer, 'Dot Matrix printer', is present in the options.
Option D: A 3D printer does not print on paper with ink. It uses an additive manufacturing process to build physical three-dimensional objects layer by layer from materials like plastic filament or resin.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Working principles of different types of computer printers as background academic context rather than a clinical decision trigger.
Printers are essential in healthcare for printing patient records, lab reports, prescriptions, and billing information.
While dot-matrix printers were once used for their ability to create carbon copies (e.g., for billing), they have been largely replaced in clinical areas by laser and thermal printers.
Laser printers offer higher speed, quieter operation, and better print quality, which is crucial for the legibility of medical documents.

How to Approach the Question

First, identify the key descriptive phrases in the question stem: 'small pins' and 'arranged in the form of a matrix'.
The term 'matrix' is a very strong clue. Scan the options to see if any of them relate to this term.
Option A, 'Dot Matrix printer', directly contains the keyword 'Matrix'.
Recall or deduce the working principles of the other printers. A 'Laser' printer uses a laser and toner. A '3D' printer builds objects in layers.
Conclude that the description of using pins in a matrix formation perfectly matches the mechanism of a Dot Matrix printer.

Concept Tested & Keywords

Qcz-Zcm6FekpELnn8xK1Pa

Practise the full AIIMS Manglagiri NO - 2019

Attempt every question from this paper in a timed mock, then review the full solution for each one.