Answer:
A) 2.56 ms
B) 128 μs
Explanation:
Time for Bus cycles = 500 ns
Transfer of bus control = 250 ns
I/0 device data transfer rate = 50 KB/s
Data are transferred at : 1 byte at a time
A) Determine how long the device tie up the bus when transferring a block of 128 bytes
Block size to be transferred = 128 bytes
Bandwidth = 50 KB/s
data transfer = (Block size ) / ( Bandwidth)
= ( 128 * 8 ) / ( 50 * 10^3 * 8 )
= ( 1024 ) / ( 50 * 10^3 * 8 )
= 2.56 ms
To determine the actual transfer time we have to add up the transfer time for the bus control in both directions :
2.56 ms + 500 ns = 2.56 ms. this is because 500 ns is not a significant value
B) cycle stealing mode
In this mode each byte is transferred at a time and The total transfer time needed for the bus control in both directions will be double the total time i.e 2 * 500 ns = 1000 ns. because additional control time of 250 ns is required at both ends
since 1 byte is transferred at a time , 1 byte will be transferred in 1 μs
128 bytes = 128 * 1 μs = 128 μs
The answer is true!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
Integrated Electronics
Graphical user interface
Uniform resource locator
Computer aided design
Liquid crystal display
Arithmetic and logic unit
Answer:
I believe razor blade 15 1070
Explanation:
Because it seems more sleak
Answer:
C. top-down approach.
Explanation:
Structured application development uses a top-down approach in structural design, which is a process used to design application, by identifying the top functionalities is an application and splitting the to smaller modules where their tasks are simplified and specific.
It was introduced by IBM in the mid 1970s. It systematically shows the dataflow from the general structure to the detailed structure. This best suits systems with individual functions with little or no interaction.
Another type of approach to application structured design is the bottom-up approach.