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Why are the read and write control lines in a DMA controller bidirectional? Under what
condition and for what purpose are they used as inputs? Under what condition and for what
purpose are they used as outputs?
What is the difference between isolated I/O and memory-mapped I/O? What are the
advantages and disadvantages of each?
Explain various addressing modes available in computer organization with neat example.
Convert the following arithmetic expressions from infix to reverse Polish notation.
a. A * B + C * D + E * F
b . A * B + A * (B * D + C * E)
c. A + B * [C * D + E * (F + G)]
d. A * [B + C * (D + E)] / f * (G + H)
Convert the following arithmetic expressions from infix to reverse Polish notation.
a. A * B + C * D + E * F
b . A * B + A * (B * D + C * E)
c. A + B * [C * D + E * (F + G)]
d. A * [B + C * (D + E)] / f * (G + H)
Give one real-life example in Computers of Deadlock
and how to prevent it from occurring?
Give one real-life example in Computers of Deadlock
and how to prevent it from occurring?
Determine the value of the anode current in the Figure below when the device is ON.
VBR(F) =100V. Assume VBE=0.7V and VCE(sat) =0.1V for the internal transistor structure. What is the resistance in the forward conduction region of the 4-layer diode.
A 4-layer is biased in the forward –blocking region with an anode-to-cathode voltage of 20V under this bias condition, the anode current is 1uA. Determine the resistance of the diode in the forward-blocking region.
A JFET produces gate current of 20nA when gate is reversed biased with 8V. Determine the resistance between gate and source.
