Which of the following items is stored in main memory?
Data, programs, calculations, and operands
Time interval from the instant a request for data is initiated until the data is available for use.
The output side of a flip-flop is read from memory without having to be rewritten
The power to the computer is turned off and the contents of memory are retained.
The particular location of a larger memory array where a packet of information is located.
Power is shut off to the computer and the contents of the semi- conductor memory are lost.
The data is lost when it is read from memory.
A memory unit that can receive requests from more than one CPU or I/O section is known as which of the following types of memories?
Multiported memory module
Pcb type memories are usually composed of which of the following memory types?
In a typical square form memory, the intersection of an x row and y column is called a
memory word address
The x rows and y columns of a typical memory will be equal in number.
Memory operations in most computers usually include which of the following items?
1. Control circuits 2. Timing circuits 3. Memory cycle
Memory interface circuits include which of the following items?
Communication lines Interfacing register
A word is read from memory, then rerouted back through the Z register to be rewritten. This is what type of memory?
Priority of memory requests are evaluated by which of the following devices?
Memory read/write enables are provided by which of the following devices?
what is the memory cycle
During a complete memory cycle, the first thing that must occur is which of the following?
Memory address translation is accomplished
main memory is also called
To locate a memory address word, the computer uses which of the following items in memory?
The conversion from a logical to a physical memory address is a function of which of the following items in memory?
In all computers, for every read operation there will always be a corresponding write operation.
false only in destructive memory
In order to increase memory speed using interleaving, which of the following items are required?
More complex CPU and memory control circuitry
When odd parity is used for memory fault detection, all words stored in memory will have which of the following bits?
An odd number of set bits stored at each memory location
The memory protection register set is used for which of the following purposes?
To restrict read/write operations in portions of memory
In a memory segment within the protected area with all three bits of the memory protection control register set, which of the following operations are allowed?
1. Execute protected 2. Write protected 3. Read protected
Memory lockout is used by larger computers to prevent access to particular areas of memory by task state instructions. Which of the following describes the lockout function?
It is disabled when the CPU enters a particular executive or interrupt state and disabled when the CPU enters the task state
Compared with semiconductor memories, magnetic memories have which of the following advantages?
They require less power and they are nonvolatile
The state of a core or film is changed by which of the following conditions?
Current flow in the opposite direction of sufficient magnitude to overcome the magnetic field and to magnetize in the new direction