Microprocessor Quiz Bank

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Questions and Answers

What is the correct number of address lines in the 8086 microprocessor?

20 (correct)

Which component is included in a microprocessor unit?

Hard Disk Drive

Random Access Memory

Input/Output Devices

Control Unit (correct)

Which of the following statements is true about microcomputers?

They require an external CPU.

They cannot perform logical operations.

They can perform various operations like addition and subtraction. (correct)

They operate only with specific types of data.

What will be the memory capacity of a memory connected to a microprocessor with 20 address lines and 16 data lines?

2 MB Signup and view all the answers

How many address lines are needed to connect a memory of 90 GB to a microprocessor?

39 Signup and view all the answers

What is the word length of the Pentium-II microprocessor?

64-bit Signup and view all the answers

In microcomputers, which term is used to refer to the operations performed?

Instructions Signup and view all the answers

Which of the following is a type of microprocessor?

CISC Signup and view all the answers

What buses are involved in transferring information from the address register to memory?

Address Bus, Data Bus and Control Bus Signup and view all the answers

Which complements the instruction sequence in a microprocessor?

Fetch, decode, and execute Signup and view all the answers

What value is in the Program Counter (PC) during decode if it was 0001B before fetch?

0010 Signup and view all the answers

What is the value of the signed binary number 10111111 in 2's complement form?

-65 Signup and view all the answers

How is assembly language classified in relation to high-level languages?

Assembly language is a Low Level language Signup and view all the answers

What is the integer storage size for a quadword?

None Signup and view all the answers

Which options best describe where assembly language is most beneficial?

Both A and B Signup and view all the answers

What are the most important features of RISC architecture?

Simplicity and reduced instruction sets Signup and view all the answers

What type of processor features two or more execution pipelines?

Superscalar processor Signup and view all the answers

Which component is responsible for decoding the instructions in a CPU?

Instruction Decoder Signup and view all the answers

What is the purpose of Status Flags in a CPU?

To reflect outcomes of arithmetic and logical operations Signup and view all the answers

Which register is NOT automatically used by For and While Loop instructions?

ECX Signup and view all the answers

What reflects the presence of a result too large or too small for the designated storage?

Overflow Flag Signup and view all the answers

Which of the following is a required component of an instruction?

Mnemonic Signup and view all the answers

Which flags are included in Status Flags?

All of the above Signup and view all the answers

Which element is automatically used in high-speed memory transfer instructions?

EDI Signup and view all the answers

Study Notes

Microprocessor Question Bank

Microprocessor Components: A microprocessor consists of thousands of microscopic transistors squeezed onto a tiny silicon chip.
8086 Microprocessor: The Intel 8086 was Intel's first x86 processor.
Microprocessor Types: CISC, RISC, and EPIC are types of microprocessors.
Microprocessor Operations: A microprocessor can operate on information present in the main memory.
Microprocessor Unit (CPU): A microprocessor unit is a complex logic element that performs arithmetic and logic operations.
Microcomputer Components: A microcomputer contains a microprocessor, other circuits, a clock, and interface adapters.
Microcomputer Operations: Microcomputers perform various operations, including addition, subtraction, logical operations, and input/output operations.
Microcomputer Operations Terminology: In microcomputers, operations are called instructions.
Address Lines in 8086: The 8086 microprocessor has 20 address lines.
Microprocessor Characteristics: Microprocessors have internal memory, interfacing circuits, and contain ALU, CU, and registers. They also use Harvard architecture.
Condition Flags: Trap flag, carry flag, and zero flag are condition flags.
Memory Capacity Calculation: A memory with 20 address lines and 16 data lines will have 2^20 bytes of memory, which is 2 MB of capacity.
Pentium-II Word Length: The Pentium-II microprocessor has a 32-bit word length.
Address Lines for Memory: A 90 GB memory requires 37 address lines.
Address Lines for RAM: A 4KB RAM requires 12 address lines.
Register Contents (MOV): If registers A and B have 50H and 40H respectively, and the instruction MOV A,B is executed, A will contain 40H and B will contain 40H.
Microcomputer Buses: Microcomputers have address buses, data buses, and control buses.
Data Transfer: Information is transferred from the Address register to memory by using the Address Bus.
Microprocessor Instruction Sequence: Instructions within a microprocessor are typically arranged in a fetch, decode, and execute sequence.
PC Register (Decode): If the PC register value was 0001B before fetch, then during decode it should be 0002B.
1's Complement: The 1's complement of 10011001 is 01100110.
2's Complement Decimal Value: The 2's complement form, 10111111, has a decimal value of –65.
2's Complement Calculation: For example, the 2's complement of (95C3)16 is (6A3D)16
Switching Circuit Notation: A switching circuit can be represented in binary logic notation. A common example is using AND, OR, and NOR logic gates to represent its operations.
High-Level vs. Assembly Language: Assembly language is not a high-level language; it is a low-level assembly language. High-level languages are closer to human language than assembly language.
Assembly Language Use: Assembly language is better suited for hardware devices.
Storage Sizes: Quadword storage is 64-bit, unsigned doubleword is 0 to 2³² - 1, and signed word is -2¹⁵ to 2¹⁵ - 1.
Sign-Magnitude Binary Number: The sign-magnitude form of 01110100 is decimal +116
CISC Characteristics: CISC microprocessors have a large instruction set, high-level operations and require microcode interpreters.
RISC Characteristics: RISC microprocessors have simple, atomic instructions, a small instruction set and are directly executed by hardware.
Control Unit Operation: The control unit decodes the instructions using the instruction decoder.
Pipelined Execution: Pipelined execution in the Intel386 uses a six-stage execution cycle.
Status Flags: Status flags in a processor reflect the outcomes of arithmetic and logical operations.
Status Flags Examples: Zero flag, Carry flag and Auxiliary carry flag, and Parity flag are examples of status flags
Overflow Flag: The Overflow flag is set when the result of a signed arithmetic operation is too large or too small.
Instruction Components: Instructions typically include a label, a mnemonic, and an operand
Label Purpose: A label placed directly after a variable implies the variable's (memory location) address.

Other

Questions 50-54 are problem-solving/practical application questions requiring solutions and are complex in nature; more detailed solutions would be provided in an in-person or virtual learning environment and they involve assembly language, binary calculations, and potentially memory operations.

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Description

Test your knowledge on microprocessors and microcomputers with this comprehensive quiz. Explore topics such as microprocessor components, types, operations, and the specifics of the Intel 8086. Perfect for students and enthusiasts of computer architecture.