16 Questions
What is the function of cache memory in a computer system?
To act as a high-speed buffer between the CPU and main memory
Which type of memory is used to store data and instructions in a computer system?
Primary Memory
What is the primary function of cache memory?
To hold frequently used data and program parts for quick access by the CPU
What does the term 'word size' refer to in computer memory systems?
The number of data bits that can be transferred at one time
Which access method involves starting at the beginning and reading through data in order?
Sequential access
Where is cache memory located in a computer system?
Internal to the CPU
Which memory type requires refreshing even when powered?
Dynamic RAM
What type of memory is typically used for temporary storage?
Random Access Memory (RAM)
Which type of memory is characterized by storing bits as on/off switches?
Static RAM
Which memory type is used for permanent storage?
Read Only Memory (ROM)
What type of memory is characterized by needing special equipment to program it?
PROM
Which type of memory can be erased by UV light?
Erasable Programmable (EPROM)
What is the memory cycle time?
Time required for the memory to 'recover' before next access
Which memory type is characterized by smaller per bit storage and needing refreshing circuits?
Dynamic RAM
What is the rate at which data can be moved in a memory unit called?
Transfer Rate
What is the time it takes to perform a read or write operation called?
Access time (latency)
Study Notes
Cache Memory
- Primary function is to act as a buffer between the main memory and CPU, reducing the time it takes to access data
- Located close to the CPU to increase access speed
Memory Types
- Main Memory: stores data and instructions, volatile, and loses data when powered off
- Cache Memory: small, fast, and volatile, used for temporary storage
- ROM (Read-Only Memory): non-volatile, used for permanent storage
- EPROM (Erasable Programmable Read-Only Memory): can be erased by UV light, needs special equipment to program
- DRAM (Dynamic Random Access Memory): requires refreshing circuits, smaller per bit storage
Memory Access and Operations
- Sequential Access: starting at the beginning and reading through data in order
- Memory Cycle Time: the time it takes to perform a read or write operation
- Bandwidth: the rate at which data can be moved in a memory unit
- Word Size: refers to the number of bits that can be processed by the CPU in a single clock cycle
Test your knowledge of computer memory systems with this quiz. Explore topics such as types of computer memories, cache memory, primary memory, and secondary memory.
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