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
Please write the whole question, is it asking for the function that requests user input?
The default custom dictionary is the dictionary to which Microsoft Word adds the word when you do this.
Answer: See explanation
Explanation:
Systems analysts are the people who analyse how a particular software, or IT system will be able to fit and meet the needs of their company or client. They are charged with the responsibility of writing requirements for new systems.
Some if the skills required for a system analyst include:
• Flexibility
• Strong analytical skills
• Adaptability
• Initiative
• Interpersonal skills.
• Attention to detail.
• Teamwork skills.
• Written and verbal communication skills.
Office Open XML (OOXML) format was introduced with Microsoft Office 2007 and became the default format of Microsoft Word ever since. Pertaining file extensions include: .docx – Word document. .docm – Word macro-enabled document; same as docx, but may contain macros and scripts.
