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CPE310 Exam 2
Computer Engineering Exam 2 Material
18
Other
Undergraduate 3
11/03/2016

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Term
Volatile Memory
Definition
will lose all data stored when power is disconnected
Term
Nonvolatile memory
Definition
will not lose any data stored on it when power is disconnected
Term
Static Memory
Definition
uses flip flops to store information
Term
Dynamic Memory
Definition
uses capacitors and transistors to store the information
Term
Memory Access Time
Definition
the amount of time between the computers request for stored data and when the data is returned
Term
Memory Cycle Time
Definition
the amount of time it takes to read from and write to a memory cell
Term
Random Access Memory
Definition
allows data from memory to be pulled or returned from any location regardless if the memory is or is not related to another piece of data
Term
Sequential access Memory
Definition
allows data from memory to be pulled in only a predetermined, ordered manner.
Term
Why are latches required on the AD0-AD15 bus in an 8086 system?
Definition
Latches are used to hold the multiplexed address into address bus. Latches constitute the time multiplexed memory/IO address bus. They can be in 3 states and go to 3rd state (OFF) during interrupt acknowledge and local bus hold acknowledge
Term
why are buffers often needed on the address, data, and control buses in a microcomputer system?
Definition
There is a possibility of overloading the microprocessor's address or data bus when they are connected to external memory. Hence for this reason buffers are used to prevent overloading (increase Fan-out).
Term
what are the functions of the 8088 DT/R
Definition
DT/R is used to control the direction of data flow through data tranciever
Term
what are the functions of the 8088 DEN?
Definition
DEN is provided as an output enable for bus transceiver in a minimum system
Term
ISA stands for
Definition
Industrial Standard Architecture BUS
Term
ISA maximum bus speed is
Definition
8MHz
Term
EISA stands for
Definition
Extended Industrial Standard Architecture BUS
Term
PCI stands for
Definition
Peripheral Component Interconnect BUS
Term
PCI bus speed is
Definition
33/66MHz
Term
AGP stands for
Definition
Accelerated Graphics Port
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