Computer Knowledge

Computer Memory and Storage

2,477 Questions

Computer memory and storage questions test foundational knowledge of hardware, cache mapping, and data transfer mechanisms. Key areas include Direct Memory Access, analog recording, and RAID levels. This section is essential for candidates preparing for banking and government computer proficiency tests.

Cache memory mappingDirect memory accessRAID storage levelsHard disk technologyOptical media storageMemory addresses

Computer Memory and Storage Questions

Multiple choice
  1. Optical

  2. Electrical

  3. Magetic

  4. Digital

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

CD-ROM (Compact Disc Read-Only Memory) uses optical technology where a laser reads microscopic pits on the disc surface. Unlike magnetic storage (floppy disks, tape) or electrical methods, optical technology uses light to read data.

Multiple choice
  1. 32 MB

  2. 64MB

  3. 126 RAM

  4. 256 MB

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

RAM configurations typically follow binary patterns (powers of 2). Options like 32 MB, 64 MB, and 256 MB are standard. '126 RAM' is not a valid RAM configuration - it should be 128 MB for proper binary alignment.

Multiple choice

Theorists believe a person can remember more information in a short time

Directions: Refer the following passage:

Most people can remember a phone number for up to thirty seconds. When this short amount of time elapses, however the numbers are erased from the memory. How did the information get there in the first place? Information that makes its way to the short term memory (STM) does so via the sensor storage area. The brain has a filter which only allows stimuli that is of immediate interest to pass on to the STM, also known as the working memory. There is much debate about the capacity and duration of the short term memory. The most accepted theory comes from George A.Miller, a cognitive psychologist who suggested that humans can remember approximately seven chunks of information. A chunk is defined as a meaningful unit of information, such as a word or name rather than just a letter or number. Modern theorists suggest that one can increase the capacity of short term memory chunking or classifying similar information together. By organizing information, one can optimize the STM, and improve the chances of a memory being passed onto long term storage. When making a conscious effort to memorize something, such as information for an exam, many people engage in “rote rehearsal”. By repeating something over and over again, one is able to keep a memory alive. Unfortunately, this type of memory maintenance only succeeds if there are no interruptions. As soon as the person stops rehearsing the information, it has the tendency to disappear. When a paper and pen are not handy, people often attempt to remember a phone number by repeating it aloud. If the doorbell rings or the dog barks to come in before a person has the opportunity to make a phone call, he will likely forget the number instantly. Therefore rote rehearsal is not an efficient way to pass information from the short term to long term memory. A better way is to practice “elaborate rehearsal “. This involves assigning semantic meaning to a piece of information so that it can be filed along with other pre – existing long term memories. Encoding information semantically also makes it more retrievable. Retrieving information can be done by recognition or recall. Humans can easily recall memories that are stored in the long term memory and used often; however, if a memory seems to be forgotten, it may eventually be retrieved by prompting. The more cues a person is given (such as pictures), the more likely a memory can be retrieved. This is why multiple choice tests are often used for subjects that require a lot of memorization.

  1. by organising it

  2. by repeating it

  3. by giving it a name

  4. by drawing it

  5. by rote rehearsal

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

If the collection of information is organised in an efficient manner, then it is easy to recall it in short duration.

Multiple choice

Why does the author mention a dog’s bark?

Directions: Refer the following passage:

Most people can remember a phone number for up to thirty seconds. When this short amount of time elapses, however the numbers are erased from the memory. How did the information get there in the first place? Information that makes its way to the short term memory (STM) does so via the sensor storage area. The brain has a filter which only allows stimuli that is of immediate interest to pass on to the STM, also known as the working memory. There is much debate about the capacity and duration of the short term memory. The most accepted theory comes from George A.Miller, a cognitive psychologist who suggested that humans can remember approximately seven chunks of information. A chunk is defined as a meaningful unit of information, such as a word or name rather than just a letter or number. Modern theorists suggest that one can increase the capacity of short term memory chunking or classifying similar information together. By organizing information, one can optimize the STM, and improve the chances of a memory being passed onto long term storage. When making a conscious effort to memorize something, such as information for an exam, many people engage in “rote rehearsal”. By repeating something over and over again, one is able to keep a memory alive. Unfortunately, this type of memory maintenance only succeeds if there are no interruptions. As soon as the person stops rehearsing the information, it has the tendency to disappear. When a paper and pen are not handy, people often attempt to remember a phone number by repeating it aloud. If the doorbell rings or the dog barks to come in before a person has the opportunity to make a phone call, he will likely forget the number instantly. Therefore rote rehearsal is not an efficient way to pass information from the short term to long term memory. A better way is to practice “elaborate rehearsal “. This involves assigning semantic meaning to a piece of information so that it can be filed along with other pre – existing long term memories. Encoding information semantically also makes it more retrievable. Retrieving information can be done by recognition or recall. Humans can easily recall memories that are stored in the long term memory and used often; however, if a memory seems to be forgotten, it may eventually be retrieved by prompting. The more cues a person is given (such as pictures), the more likely a memory can be retrieved. This is why multiple choice tests are often used for subjects that require a lot of memorization.

  1. To give an example of a type of memory

  2. To provide a type of interruption

  3. To prove that dogs have better memories than humans

  4. To compare another sound that is loud like a doorbell

  5. None of these

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Dog’s bark is metioned to provide a type of interruption.

Multiple choice

All of the following are mentioned as places in which memories are stored, except

Directions: Refer the following passage:

Most people can remember a phone number for up to thirty seconds. When this short amount of time elapses, however the numbers are erased from the memory. How did the information get there in the first place? Information that makes its way to the short term memory (STM) does so via the sensor storage area. The brain has a filter which only allows stimuli that is of immediate interest to pass on to the STM, also known as the working memory. There is much debate about the capacity and duration of the short term memory. The most accepted theory comes from George A.Miller, a cognitive psychologist who suggested that humans can remember approximately seven chunks of information. A chunk is defined as a meaningful unit of information, such as a word or name rather than just a letter or number. Modern theorists suggest that one can increase the capacity of short term memory chunking or classifying similar information together. By organizing information, one can optimize the STM, and improve the chances of a memory being passed onto long term storage. When making a conscious effort to memorize something, such as information for an exam, many people engage in “rote rehearsal”. By repeating something over and over again, one is able to keep a memory alive. Unfortunately, this type of memory maintenance only succeeds if there are no interruptions. As soon as the person stops rehearsing the information, it has the tendency to disappear. When a paper and pen are not handy, people often attempt to remember a phone number by repeating it aloud. If the doorbell rings or the dog barks to come in before a person has the opportunity to make a phone call, he will likely forget the number instantly. Therefore rote rehearsal is not an efficient way to pass information from the short term to long term memory. A better way is to practice “elaborate rehearsal “. This involves assigning semantic meaning to a piece of information so that it can be filed along with other pre – existing long term memories. Encoding information semantically also makes it more retrievable. Retrieving information can be done by recognition or recall. Humans can easily recall memories that are stored in the long term memory and used often; however, if a memory seems to be forgotten, it may eventually be retrieved by prompting. The more cues a person is given (such as pictures), the more likely a memory can be retrieved. This is why multiple choice tests are often used for subjects that require a lot of memorization.

  1. STM

  2. long term memory

  3. sensory storage area

  4. maintenance area

  5. None of these

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This is a place where all types of repairing work of memory is done or how much memory is allocated to a particular task is decided.

Multiple choice

The word 'elapses' in paragraph 1 is closest in meaning to

Directions: Refer the following passage:

Most people can remember a phone number for up to thirty seconds. When this short amount of time elapses, however the numbers are erased from the memory. How did the information get there in the first place? Information that makes its way to the short term memory (STM) does so via the sensor storage area. The brain has a filter which only allows stimuli that is of immediate interest to pass on to the STM, also known as the working memory. There is much debate about the capacity and duration of the short term memory. The most accepted theory comes from George A.Miller, a cognitive psychologist who suggested that humans can remember approximately seven chunks of information. A chunk is defined as a meaningful unit of information, such as a word or name rather than just a letter or number. Modern theorists suggest that one can increase the capacity of short term memory chunking or classifying similar information together. By organizing information, one can optimize the STM, and improve the chances of a memory being passed onto long term storage. When making a conscious effort to memorize something, such as information for an exam, many people engage in “rote rehearsal”. By repeating something over and over again, one is able to keep a memory alive. Unfortunately, this type of memory maintenance only succeeds if there are no interruptions. As soon as the person stops rehearsing the information, it has the tendency to disappear. When a paper and pen are not handy, people often attempt to remember a phone number by repeating it aloud. If the doorbell rings or the dog barks to come in before a person has the opportunity to make a phone call, he will likely forget the number instantly. Therefore rote rehearsal is not an efficient way to pass information from the short term to long term memory. A better way is to practice “elaborate rehearsal “. This involves assigning semantic meaning to a piece of information so that it can be filed along with other pre – existing long term memories. Encoding information semantically also makes it more retrievable. Retrieving information can be done by recognition or recall. Humans can easily recall memories that are stored in the long term memory and used often; however, if a memory seems to be forgotten, it may eventually be retrieved by prompting. The more cues a person is given (such as pictures), the more likely a memory can be retrieved. This is why multiple choice tests are often used for subjects that require a lot of memorization.

  1. passes

  2. adds up

  3. appears

  4. continues

  5. break

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

 'Elapses' and 'passes' are synonyms of each other.

Multiple choice

According to the passage, how do memories get transferred to the STM?

Directions: Refer the following passage:

Most people can remember a phone number for up to thirty seconds. When this short amount of time elapses, however the numbers are erased from the memory. How did the information get there in the first place? Information that makes its way to the short term memory (STM) does so via the sensor storage area. The brain has a filter which only allows stimuli that is of immediate interest to pass on to the STM, also known as the working memory. There is much debate about the capacity and duration of the short term memory. The most accepted theory comes from George A.Miller, a cognitive psychologist who suggested that humans can remember approximately seven chunks of information. A chunk is defined as a meaningful unit of information, such as a word or name rather than just a letter or number. Modern theorists suggest that one can increase the capacity of short term memory chunking or classifying similar information together. By organizing information, one can optimize the STM, and improve the chances of a memory being passed onto long term storage. When making a conscious effort to memorize something, such as information for an exam, many people engage in “rote rehearsal”. By repeating something over and over again, one is able to keep a memory alive. Unfortunately, this type of memory maintenance only succeeds if there are no interruptions. As soon as the person stops rehearsing the information, it has the tendency to disappear. When a paper and pen are not handy, people often attempt to remember a phone number by repeating it aloud. If the doorbell rings or the dog barks to come in before a person has the opportunity to make a phone call, he will likely forget the number instantly. Therefore rote rehearsal is not an efficient way to pass information from the short term to long term memory. A better way is to practice “elaborate rehearsal “. This involves assigning semantic meaning to a piece of information so that it can be filed along with other pre – existing long term memories. Encoding information semantically also makes it more retrievable. Retrieving information can be done by recognition or recall. Humans can easily recall memories that are stored in the long term memory and used often; however, if a memory seems to be forgotten, it may eventually be retrieved by prompting. The more cues a person is given (such as pictures), the more likely a memory can be retrieved. This is why multiple choice tests are often used for subjects that require a lot of memorization.

  1. They revert from long term memory.

  2. They are filtered from the sensory storage area.

  3. They get chunked when they enter the brain.

  4. They enter via the nervous system.

  5. They enter via working memory.

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Memories get transferred to the STM by filtration from the secondary storage area. 

Multiple choice
  1. Booting

  2. Saving

  3. Printing

  4. Opening

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Booting is the process of loading the operating system from disk into RAM when you power on or restart a computer. The OS must be in memory to function, and this loading process is universally called booting (from 'pulling oneself up by bootstraps').

Multiple choice
  1. DPI

  2. IPS

  3. CPS

  4. RAM

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

IPS (Instructions Per Second) measures how many instructions a CPU can execute per second, making it the appropriate unit for computer processing speed. DPI measures print/display resolution, CPS (Cycles Per Second) is related to clock speed (now measured in Hz), and RAM is memory capacity measured in bytes, not speed.

Multiple choice
  1. CD ROM

  2. Floppy Disk

  3. Pen Drive

  4. Hard disk

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Winchester disk was the code name for IBM's revolutionary hard disk drive technology introduced in 1973. It featured sealed unit construction with read/write heads floating over the disk surface on an air cushion. This became the industry standard for hard drives. CD-ROMs, floppy disks, and pen drives are all removable storage media.