IT &computer MCQ section 7 MCQ Questions & Answers Detailed Explanation

Answer: (b)

Hyper Text Markup Language (HTML) is the main markup language for creating web pages and other information that can be displayed in a web browser.

HTML is written in the form of HTML elements consisting of tags enclosed in angle brackets (like ), within the web page content

Answer: (c)

The Compact Disc, or CD for short, is an optical disc used to store digital data. It was originally developed to store and playback sound recordings only, but the format was later adapted for the storage of data (CD-ROM). Standard CDs have a diameter of 12 mm (4.7 in) and can hold up to 80 minutes of uncompressed audio or 700 MB (700 × 106 bytes) of data.

The encoding material sits atop a thicker substrate (usual polycarbonate) which makes up the bulk of the disc and forms a dust defocusing layer. The encoding pattern follows a continuous, spiral path covering the entire disc surface and extending from the innermost track to the outermost track.

The data is stored on the disc with a laser or stamping machine.

Answer: (c)

An optical disc is an electronic data storage medium that can be written to and read using a low-powered laser beam. Super disk is an optical disk.

Answer: (d)

First Computer came in India in 1956, in Calcutta now Kolkata In Indian statistical institute Kolkata under doctors Dutta, Majumdar and Roy.

It was not only the first computer of India but also Asia’s first computer outside Japan.

Answer: (b)

A major effect of pipelining is to change the relative timing of instructions by overlapping their execution. This introduces data and control hazards.

Data hazards occur when the pipeline changes the order of read/write accesses to operands so that the order differs from the order seen by sequentially executing instructions on the unpipelined machine.

Answer: (a)

The operations executed on data stored in registers are called Microoperations. Microoperation is an elementary operation performed (during one clock pulse), on the information stored in one or more registers. Examples of microoperation include: shift, load, clear, increment, count, etc.