Data Storage | MCQs

Explanation

KB stands for Kilobyte

MB stands for Megabyte

GB stands for Gigabyte

TB stands for Terabyte

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VU CBT FIA SI ASI PAPER 13-12-2021

Explanation

The CPU (Central Processing Unit) is responsible for processing data, not for long-term storage.

Permanent storage is handled by devices like hard drives or SSDs, not the CPU.

Explanation

Each row in a data set (called a tuple)

n database lingo, these columns are called attributes.

A database attribute is a column name and the content of the fields under it in a table.

Explanation

Optical disks like CDs and DVDs store data in a spiral track that starts from the innermost part and moves outward.

This spiral path allows continuous reading of data as the disk spins.

Explanation

A floppy disk is a magnetic storage device, not an optical disk.

CD, DVD, and Blu-ray Disc are all optical storage media, read using laser technology.

Explanation

Magnetic memory (like hard drives and magnetic tapes) is read-write, not read-only — data can be both read and modified.

It is also non-volatile, reliable, and relatively cheap for storing large amounts of data.

Explanation

Sector refers to a subdivision of a track on a circular storage medium.

Data is stored in a circular or pie-shaped section, often on a disk or hard drive.

Explanation

The hard disk was invented on September 13, 1956, by an IBM team led by Rey Johnson

The commercial usage of hard disk drives (HDD) began in 1957

Rey Johnson (considered as “father” of the disk drive).

A computer hard disk drive is a non-volatile data storage device.

Hard Disk is an example of Magnetic Storage

Explanation

The capacity of 3.5 inch floppy disk was 1.44 MB

The double-sided, high-density 1.44 MB (actually 1440 KiB = 1.41 MiB) disk drive, which would become the most popular, first shipped in 1986.

Explanation

Magnetic storage devices: Today, magnetic storage is one of the most common types of storage used with computers.

This technology found mostly on extremely large hybrid hard drives