Memory MCQ Quiz - Objective Question with Answer for Memory - Download Free PDF

The correct answer is All of These.

Important Points

• The secondary storage devices which are built into the computer or connected to the computer are known as the secondary memory of the computer.
• It is also known as external memory or auxiliary storage.
• The secondary memory is accessed indirectly via input/output operations.
• The CPU can't directly access the secondary memory.
• The secondary memory data is transferred to primary memory first and then the CPU can access it.
• Secondary memory is a non-volatile memory.
• It is cheaper and permanent memory.
• If we need to store a large amount of data or programs permanently we need secondary storage.
• Characteristics of Secondary Memory 
  • It is non-volatile.
  • It retains data when power is switched off.
  • It is large capacities to the tune of terabytes.
  • It is cheaper as compared to primary memory.

Key Points

Types of secondary Memory

• Depending on whether the secondary memory device is part of the CPU or not, there are two types of secondary memory – fixed and removable.

Additional Information

The table below shows the description of each secondary storage.

Secondary Storage	Description	Images
1. Hard Disk Drive	A hard disk drive is made up of a series of circular disks called platters. Platters are arranged one over the other almost ½ inches apart around a spindle. Disks are made of non-magnetic material like aluminium alloy and coated with 10-20 nm of magnetic material.
2. CD Drive	CD stands for Compact Disk CDs are circular disks that use optical rays, usually lasers, to read and write data. CDs are inserted in CD drives built into the CPU cabinet.
3. Pen Drive	Pen drive is a portable memory device. It uses solid-state memory rather than magnetic fields or lasers to record data. It uses a technology similar to RAM, except that it is nonvolatile. It is also called a USB drive, key drive or flash memory.
4. DVD Drive	DVD stands for Digital Video Display. DVDs are optical devices that can store 15 times the data held by CDs. They are usually used to store rich multimedia files that need high storage capacity. DVDs also come in three varieties – read-only, recordable and rewritable.

The correct answer is Burn CD/DVD

Key Points

• Nero StartSmart is software offered by Nero Inc. which provides a user-friendly interface guiding the user to different functionalities of Nero, such as burning data discs like CDs/DVDs, creating and managing multimedia files, backing up data, etc.
• It does not format pen drives, HDDs, or floppy drives.

Additional Information

• Format pen drive: Formatting a pen drive, or any other storage device for that matter, refers to the process of preparing the chosen device for data storage. It involves clearing the device of all data and setting up a file system which the operating system can use to read and write data. This operation is generally done using the operating system's built-in tool or other third-party software.
• Format HDD: Similar to a pen drive, formatting a HDD (Hard Disk Drive) again involves clearing all the data from the disk and setting up a file system that the operating system can recognize and work with. It makes the HDD ready for storing data anew.
• Format Floppy drive: Floppy drives are an old form of data storage that aren't usually used today. However, the process of formatting them is similar to that of the pen drive or HDD, involving erasure of all the data and the setup of a file system. In all these cases, Nero StartSmart is not used, the formatting is typically done through tools provided by the operating system.

The correct answer is Tape drive.

Key Points

• Tape drive
  •  A tape drive provides a convenient way to create system images and complete backups.
  • ​It is known for its high storage capacity and cost-effectiveness for long-term data storage.
  • However, restoration from tape drives can be lengthy due to the sequential nature of data access.​

Additional Information

• Network-attached storage (NAS)
  • NAS devices are dedicated file storage units that provide fast and easy access to stored data over a network.
  • They are ideal for data backup and file sharing within a network.
  • NAS offers relatively quick data restoration compared to tape drives due to random access capabilities.
• Solid-state drive (SSD)
  • An SSD is a high-speed storage device that provides faster read and write speeds than traditional hard drives. It is suitable for creating system images and backups, with quick restoration times due to its random access nature. SSDs, however, are typically more expensive per gigabyte than other storage options.
• DVD-RW disc
  • DVD-RW discs are rewritable optical discs used for data storage and backups. They provide a convenient, though limited, storage capacity for smaller backup needs. Restoration from DVD-RWs can be time-consuming and is less suitable for large-scale backups compared to other methods.

The correct answer is Magnetic.

Key Points

• Hard disks use magnetic storage technology to store and retrieve digital data.
• Magnetic storage involves the use of magnetic fields to magnetize portions of a material, which can then be read by a read/write head.
• Data is stored in tracks and sectors on the disk's surface, which is coated with a magnetic material.
• This technology allows for large amounts of data to be stored at a relatively low cost.

Additional Information

• Chemical: This option is incorrect. Chemical storage is not used in hard disks but is rather used in other contexts such as chemical memory for certain types of data storage in research applications.
• Optic: This option is incorrect. Optical storage, such as CDs, DVDs, and Blu-ray discs, uses lasers to read and write data. This is different from the magnetic storage used in hard disks.
• Mechanical: This option is incorrect. While hard disks have mechanical components like spinning platters and moving read/write heads, the data storage mechanism itself is magnetic, not mechanical.

The correct answer is option 3.

Concept:

Secure Digital:

A Secure Digital (SD) card is a small flash memory card made for high-capacity storage and a variety of portable devices, including GPS navigation systems, cell phones, e-books, PDAs, smartphones, digital cameras, music players, digital video camcorders, and personal computers.

Multimedia Card:

A MultiMediaCard (MMC) is a small memory card that employs flash memory to provide portable storage across a variety of gadgets, including automotive navigation systems, mobile phones, eBook readers, PDAs, smartphones, and digital cameras, music players, and video camcorders, as well as personal computers.

Hence the correct answer is Secure Digital, Multimedia Card.

The correct answer is PROM.

• PROM is not a part of auxiliary memories in a Computer system.

Key Points

• Secondary Memory/ Auxiliary memory:
  • An Auxiliary memory is the lowest-cost, highest-capacity and slowest-access storage in a computer system. 
  • It is permanent in nature, so it is also called non-volatile.
  • In these memories, programs and data are kept for long-term storage or when not in immediate use.
  • Examples of auxiliary memories are magnetic tapes, Floppy, CD-ROM and magnetic disks.
  • The PROM (Programmable Read-Only Memory) has the option of being programmed.
  • It is not a part of auxiliary memory.

Additional Information

• Primary Memory:
  • It is often referred to as the working memory of the main memory of a computer system.
  • It is temporary in nature, so it is also called volatile memory.
  • Its example is RAM.

The correct answer is Binary.

Key Points

• Data stored in a compute in the form of binary.
• A binary number is a number expressed only two symbols: typically "0" (zero) and "1" (one).
• Each digit is referred to as a bit or binary digit.
• Bit is the smallest unit of memory.
• Bit is the short form of Binary digit.
• Half byte is known as a nibble.

Additional Information

• The memory of a computer is usually measured in bytes.
• Tera-represents the fourth power of 1000.
• A Terabyte is more precisely defined as 1,024 gigabytes.
• 1 TB equals 1,024 gigabytes (GB).
• The storage capacity of a hard disc is measured in Megabytes, Gigabytes, and Terabytes.

The correct answer is Yotta Byte (YB).

Key Points

• Yotta Byte (PB) is considered the largest.
• 1 Yotta Byte (YB) = 1024 Zettabytes

Additional Information

Data Measurement Chart:

The correct answer is Cache Memory.

Key Points

• Cache memory is a special very high-speed memory.
  • It is used to speed up and synchronize with the high-speed CPU. Cache memory is more expensive than main memory or disk memory but economical as compared to CPU registers.
  • Cache memory is an extremely fast memory type that acts as a buffer between the RAM and the CPU.
  • It holds frequently requested data and instructions so that they are immediately available to the CPU when needed.
  • Cache memory is used to reduce the average time to access data from the main memory.

Additional Information

• Secondary Memory:
  • It is non-volatile, i.e. it retains data when the power is turned off.
  • It is cheaper than primary memory.
  • Depending on whether the second memory device is part of the CPU, there are two types of secondary memory – fixed and removable.
  • Hard drives, SSD, Flash, Optical drives, USB drives are some examples of secondary memory in computers.

The correct answer is DRAM.

Key Points

• DRAM:
  • It is dynamic random access memory and is widely used as a computer's main memory. Hence, Option 2 is correct.
  • Each DRAM memory cell is made up of a transistor and a capacitor within an integrated circuit, and a data bit is stored in the capacitor.
• DDR-RAM:
  • It stands for Double Data Rate Synchronous Dynamic Random-Access Memory.
  • These are the computer memory that transfers the data twice as fast as regular chips like SDRAM chips because DDR memory can send and receive signals twice per clock cycle as a comparison.
• SRAM:
  • It stands for Static Random Access Memory.
  • It is a form of a semiconductor.
  • It is widely used in microprocessors, general computing applications, and electronic devices.
  • The SRAM is volatile in nature which means the data stored in it gets all wiped out once the power supply is cut.
  • SRAM is comprised of flip-flops. 
• PRAM:
  • In computer science, a parallel random-access machine is a shared-memory abstract machine.
  • As its name indicates, the PRAM is intended as the parallel-computing analogy to the random-access machine.

The correct answer is Flash Memory.

Key Points

• Digital Camera
  • It is a camera that captures photographs in flash memory.
  • The basis for digital camera image sensors is metal-oxide-semiconductor technology.
  • Steven Sasson invented the world's first digital camera in 1975.
• Flash Memory
  • It is a type of nonvolatile memory that erases data in units called blocks and rewrites data at the byte level.
  • It is widely used for storage and data transfers in consumer devices, industrial applications.
  • Flash memory is a non-volatile computer storage chip,
  • It is made up of EEPROM.
  • EEPROM is the acronym of electrically erasable programmable read-only memory,
  • EEPROM is a Programmable ROM that can be erased and reprogrammed using an electrical charge.
  • It was first was developed by George Perlegos.
  • It allows the user to update the computer BIOS without having to open the computer or remove any chips.
  • It is organized as arrays of floating-gate transistors.
  • USB flash drives, Memory cards are examples of flash memory storage.
  • BIOS is stored in a Flash memory chip.

Additional Information

• Virtual Memory
  • It is a feature of an operating system that enables a computer to be able to compensate for shortages of physical memory by transferring pages to data from random access memory to disk storage.
• Main Memory
  • It refers to physical memory that is internal to the computer.
  • Main Memory includes RAM and primary storage.
  • The computer can manipulate only data that is in the main memory.
• Cache Memory
  • Cache memory is an extremely fast memory type that acts as a buffer between RAM and the CPU.
  • It is used to reduce the average time to access data from the Main memory.

The Correct Answer is ROM.

Key Points

• The permanent memory of a computer is known as ROM(Read-only memory).
• In computers and other electronic devices, read-only memory (ROM) is a form of non-volatile memory.
• After the memory unit is manufactured, data contained in ROM cannot be electronically changed. Read-only memory, also known as firmware, is useful for storing software that is rarely updated during the life of the device.
• Plug-in cartridges containing ROM can be used to distribute software applications (such as video games) for programmable computers.
• Read-only memory refers to memory that is hard-wired and cannot be modified electronically after manufactures, such as a diode matrix or a mask ROM integrated circuit (IC).

Additional Information

• The memory is permanently installed on your computer. This is a read-only memory. The working memory of a computer, also known as random-access memory. The hardware allows data to be passed through a device. 
• Random-access memory (RAM) is a type of computer memory that allows data and machine code to be read and modified in any order. It is commonly used to store working data and machine code.
• A CD-ROM is a data-containing optical compact disc that has been pre-pressed. CD-ROMs are a form of read-only memory that computers can read but not write to or delete.
• The electronic circuitry that executes instructions in a computer programme is known as a central processing unit (CPU), also known as a central processor, main processor, or simply processor.

The correct answer isROM.

Key Points

• ROM(Read-only Memory) is permanent memory in the computer system.
• The computer system cannot write any data on ROM.

Important Points

• Random-access memory is a form of computer data storage that stores data and machine code currently being used.
• The computer CPU (short for Central Processing Unit) is a vital component that handles all the instructions and calculations that are sent to it from other computer's components and peripherals.
• CD-ROM Stands for "Compact Disc Read-Only Memory."
• A CD-ROM is a CD that can be read by a computer with an optical drive."

The correct answer is SRAM.

​Key Points

• SRAM memory devices are very much similar, mainly in terms of speed, to the cache memory.
• SRAM stands for Static random-access memory.
• Static random-access memory is a type of random-access memory that uses latching circuitry to store each bit.
• SRAM is volatile memory; data is lost when power is removed.
• The term static differentiates SRAM from DRAM which must be periodically refreshed.

Additional Information

• Dynamic random access memory (DRAM) is a type of semiconductor memory that is typically used for the data or program code needed by a computer processor to function.
• Flash memory, also known as flash storage, is a type of nonvolatile memory that erases data in units called blocks and rewrites data at the byte level.
• EEPROM (electrically erasable programmable read-only memory) is user-modifiable read-only memory (ROM) that can be erased and reprogrammed (written to) repeatedly through the application of higher than normal electrical voltage.

The correct answer is Terabyte.

Important Points

• The memory unit is the amount of data that can be stored in the storage unit.
• This storage capacity is expressed in terms of Bytes.
  • Bit (Binary Digit): A binary digit is logical 0 and 1 representing a passive or an active state of a component in an electric circuit.
  • Nibble: A group of 4 bits is called a nibble.
  • Byte: A group of 8 bits is called byte. A byte is the smallest unit, which can represent a data item or a character.
  • Word: A computer word, like a byte, is a group of a fixed number of bits processed as a unit, which varies from computer to computer but is fixed for each computer.

Additional Information

Memory units with no. of Bytes: