Digital Electronic/Circuits Puzzles on “Introduction of Memory Devices-3”.
1. Memories are classified into _____ categories.
A. 3
B. 4
C. 5
D. 6
Answer: C
Clarification: Memory is typically classified of 2 types: Primary and Secondary. These are further classified into 5 types of memories and these are Secondary, RAM, Dynamic/Static, Volatile/Non-volatile, Magnetic/Semiconductor Memory.
2. Secondary memory is also known as ___________
A. Registers
B. Main Memory
C. RAM
D. Both registers and main memory
Answer: D
Clarification: Secondary memory is also known as Registers/Main Memory. In secondary memory, data is usually stored for a long-term.
3. In a computer, registers are present __________
A. Within control unit
B. Within RAM
C. Within ROM
D. Within CPU
Answer: D
Clarification: In a computer, registers are present within the CPU to store data temporarily during arithmetic and logical operations and during the functioning of the ALU.
4. Which of the following has the lowest access time?
A. RAM
B. ROM
C. Registers
D. Flag
Answer: C
Clarification: Registers has the lowest access time, as they are available inside the CPU. Registers are present within the CPU to store data temporarily during arithmetic and logical operations and during the functioning of the ALU.
5. Main memories of a computer, usually made up of __________
A. Registers
B. Semiconductors
C. Counters
D. PLDs
Answer: B
Clarification: Main memories of a computer, usually made up of semiconductors which are available external to the CPU to store program and data during execution of a program. Registers are present within the CPU to store data temporarily during arithmetic and logical operations and during the functioning of the ALU.
6. As the storage capacity of the main memory is inadequate, which memory is used to enhance it?
A. Secondary Memory
B. Auxiliary Memory
C. Static Memory
D. Both Secondary Memory and Auxiliary Memory
Answer: D
Clarification: As the storage capacity of the main memory is inadequate, Secondary memory is used to enhance it and it is also known as auxiliary memory. Secondary memory is also known as Registers/Main Memory. In secondary memory, data is usually stored for a long-term.
7. Which memories are if magnetic memory type?
A. Main Memory
B. Secondary Memory
C. Static Memory
D. Volatile Memory
Answer: B
Clarification: Usually, secondary memories are of magnetic memory type that are used to store large type quantities of data. In secondary memory, data is usually stored for a long-term.
8. Which of the following comes under secondary memory/ies?
A. Floppy disk
B. Magnetic drum
C. Hard disk
D. All of the Mentioned
Answer: D
Clarification: All of the mentioned equipments are of external storage which is known as secondary memories. In secondary memory, data is usually stored for a long-term.
9. Based on method of access, memory devices are classified into ____________ categories.
A. 2
B. 3
C. 4
D. 5
Answer: A
Clarification: Based on the method of access, memory devices are classified into two categories and these are sequential access memory and RAM. A sequential access memory is one in which a particular memory location is accessed sequentially.
10. A sequential access memory is one in which __________
A. A particular memory location is accessed rapidly
B. A particular memory location is accessed sequentially
C. A particular memory location is accessed serially
D. A particular memory location is accessed parallely
Answer: B
Clarification: A sequential access memory is one in which A particular memory location is accessed sequentially (i.e. the ith memory location is accessed only after sequencing through previous (i-1) memory locations).
11. An example of sequential access memory is __________
A. Floppy disk
B. Hard disk
C. Magnetic tape memory
D. RAM
Answer: C
Clarification: A sequential access memory is one in which a particular memory location is accessed sequentially. In magnetic tape memory, data is accessed sequentially.
12. A Random Access Memory is one in which __________
A. Any location can be accessed sequentially
B. Any location can be accessed randomly
C. Any location can be accessed serially
D. Any location can be accessed parallely
Answer: B
Clarification: A Random Access Memory is one in which any location can be accessed randomly.
13. An example of RAM is __________
A. Floppy disk
B. Hard disk
C. Magnetic tape memory
D. Semiconductor RAM
Answer: D
Clarification: A Random Access Memory is one in which any location can be accessed randomly. A semiconductor RAM is too much fast and can occupy any space in the memory location.
14. A static memory is one in which __________
A. Content changes with time
B. Content doesn’t changes with time
C. Memory is static always
D. Memory is dynamic always
Answer: D
Clarification: A static memory is one in which content doesn’t changes with time (i.e. stable). Dynamic memory is one in which content changes with time (i.e. unstable).
15. A dynamic memory is one in which __________
A. Content changes with time
B. Content doesn’t changes with time
C. Memory is static always
D. Memory is dynamic always
Answer: D
Clarification: A static memory is one in which content doesn’t change with time (i.e. stable). Dynamic memory is one in which content changes with time (i.e. unstable).
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