16 Questions
What is the main function of primary memory in a computer system?
Store data and code while executing a program
Where do CPU registers reside?
On the CPU chip
What is the typical access time for main memory?
A few tens of nanoseconds
Which memory is purely electronic and volatile?
Main memory
What determines the size and number of programs that can be run simultaneously?
Primary memory
Which memory has access time measured in seconds?
Disk memory
What type of memory is arranged as a matrix of 'memory cells' laid out in rows and columns?
Primary Memory
In a memory with 16M addresses, what is the width of the address bus?
24 bits
Which type of memory is volatile and requires power to retain data?
DRAM
Which type of memory is used in constructing a larger memory in terms of memory address space or word length?
Address Expansion
What is the capacity of a memory if the address bus width is 8 bits and the data bus width is 8 bits?
$2^{8}$ bytes
What naming convention represents 8 by 32 primary memory?
8X32
What type of memory retains data even without power?
$ROM$
What type of RAM is a volatile form of memory?
$DRAM$
What does $SRAM$ stand for?
Static Random Access Memory
What does primary memory refer to?
RAM
Study Notes
Primary Memory
- The main function of primary memory is to hold data and program instructions temporarily while the CPU processes them.
- CPU registers reside in primary memory.
Memory Characteristics
- Main memory has a typical access time of nanoseconds.
- Primary memory is purely electronic and volatile, meaning it loses data when power is turned off.
- The size and number of programs that can be run simultaneously are determined by the available primary memory.
Memory Types
- Magnetic disk memory has access time measured in seconds.
- Main memory is arranged as a matrix of 'memory cells' laid out in rows and columns.
- Volatile memory requires power to retain data and loses data when power is turned off.
- Non-volatile memory retains data even without power.
Memory Architecture
- In a memory with 16M addresses, the address bus width is 24 bits.
- A larger memory can be constructed in terms of memory address space or word length using virtual memory.
- The capacity of a memory with an 8-bit address bus width and an 8-bit data bus width is 256 bytes.
- An 8x32 primary memory represents 8-bit addresses and 32-bit data.
- SRAM stands for Static Random Access Memory.
- SRAM is a volatile form of memory.
- Primary memory refers to the internal memory of a computer system.
Test your knowledge of computer memory with this quiz covering primary memory, secondary memory, memory hierarchies, and memory categories like registers. Learn about the role of memory in storing data, programs, and processed information in a computer system.
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