Question # 1

Which are used DMA controllers with 8085/8086 microprocessor.

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8237

8357

Both a and b

None

AEN stand for

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Address enable

Address equivalent

Acknowledgment enable

Acknowledgment equivalent

How many types of primary register.

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1

2

3

4

Which register contains the 8086/8088 flag

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Status register

Stack register

Flag register

Stand register

Which are used for port B in 8255

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CPO-PC2

PC3-PC7

PC6-PC7

PC3-CP5

Who is the determined by the time taken by the stages the requires the most processing time.

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Clock period

Flow through

Through out

None

When CS_ the chip is not selected at all hence D7 to D0 are driven to high impendence state.

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High

Low

Medium

Stand by

Which is the main feature of 8085

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Internal clock generator

Internal system controller

Higher clock frequency

All of these

How many architectural paradigms in microprocessor.

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2

3

4

6

The _____ ddress of a memory is a 20 bit address for the 8086 microprocessor.

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Physical

Logical

Both a and b

None

How are the successful microprocessor.

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8004

4004

5006

All of these

Which is designed is automatically manage the handshake operation.

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8251

8254

8255

8259

Which bus carry addresses

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System bus

Address bus

Control bus

Data bus

LM stand for

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Least MAR

Load MAR

Least MRA

Load MRA

Motorola introduced _____ processor.

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2-bit - RISC

4 bit -RISC

8 bit - RISC

32 bit -RISC

NMI stand for

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Non mask able interrupt

Non mistake interrupt

Both a and b

None

Secondary memory can store.

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Program store code

Compiler

Operating system

All of these

8254 gate of a counter is to either

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Enable counting

Disable counting

Both a and b

None

The DMA controllers are specials hardware embedded into the chip in modern integrate processor that ____________ and _________ to the system.

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Data transfer

Arbitrate access

Both a and b

None

To provide clarity in case of the status register_________ and __ placeholders are displayed.

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Binary

Hexadecimal

Both

None

The ___________ of can assembly line to be 1/tp.

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Clock period

Pipelining

Through out

Flow thorugh

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