Introduction to Microprocessors
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Questions and Answers

What year was the Intel 8088 introduced?

  • 1979 (correct)
  • 1989
  • 1975
  • 1982
  • Which external bus width did the Intel 8088 possess?

  • 16-bit
  • 8-bit (correct)
  • 4-bit
  • 32-bit
  • What was the clock speed of the Intel 80186 and 80188?

  • 6 MHz (correct)
  • 10 MHz
  • 4 MHz
  • 8 MHz
  • How many million instructions per second could the Intel 8088 execute?

    <p>2.5 million</p> Signup and view all the answers

    What is the transistor count of the Intel 80486?

    <p>1.2 million</p> Signup and view all the answers

    Which of the following was NOT a component included in the Intel 80186 and 80188?

    <p>Graphics Processor</p> Signup and view all the answers

    What varied in the Intel 80486 depending on different versions?

    <p>Clock speed</p> Signup and view all the answers

    What was an identifying feature of the Intel 8086 compared to the 8088?

    <p>It had a 16-bit data bus</p> Signup and view all the answers

    What significant event occurred in 1968 regarding Intel's founders?

    <p>They resigned from Fairchild Semiconductors.</p> Signup and view all the answers

    What was the clock speed of the Intel 4004 microprocessor?

    <p>740 kHz</p> Signup and view all the answers

    How many transistors did the Intel 4004 microprocessor contain?

    <p>2,300</p> Signup and view all the answers

    What was unique about the Intel 8008 compared to earlier processors?

    <p>It was the first 8-bit microprocessor.</p> Signup and view all the answers

    What was the cost of the Intel 4004 microprocessor at the time of its introduction?

    <p>$200.00</p> Signup and view all the answers

    What was the maximum program memory supported by the Intel 4040 microprocessor?

    <p>8 KB</p> Signup and view all the answers

    What was the year of introduction for the Intel 4040 microprocessor?

    <p>1974</p> Signup and view all the answers

    How many employees did Intel have by 1981?

    <p>20,000</p> Signup and view all the answers

    What type of microprocessor was introduced in 2006 and features two cores?

    <p>Intel Core 2 Duo</p> Signup and view all the answers

    What is the clock speed range for the Intel Core 2 Duo?

    <p>1.2 Hz to 3 GHz</p> Signup and view all the answers

    How many transistors does the Intel Core 2 Duo contain?

    <p>291 million</p> Signup and view all the answers

    Which of the following is NOT a feature of the Intel Core microprocessor introduced in 2006?

    <p>It is limited to one core.</p> Signup and view all the answers

    What is the size of L1 cache per core in the Intel Core 2?

    <p>64 KB</p> Signup and view all the answers

    Which architecture does the Intel Core microprocessor utilize for internal connections?

    <p>Copper</p> Signup and view all the answers

    Which version of the Intel Core series was NOT launched in 2006?

    <p>Intel Core i7</p> Signup and view all the answers

    What is the total amount of L2 cache shared in Intel Core 2 processors?

    <p>4 MB</p> Signup and view all the answers

    What was a notable feature of the Intel 80386 microprocessor?

    <p>It could address 4 GB of memory.</p> Signup and view all the answers

    Which version of the Intel 80386 was noted for its clock speed variations?

    <p>80386 DX</p> Signup and view all the answers

    What was the initial name of the Intel Pentium microprocessor?

    <p>80586</p> Signup and view all the answers

    What was the maximum clock speed achieved by the Intel Pentium?

    <p>66 MHz</p> Signup and view all the answers

    Which microprocessor became the best-selling in history?

    <p>Intel 80386</p> Signup and view all the answers

    What was the clock speed range of the Intel Pentium II?

    <p>500 MHz to 1.4 GHz</p> Signup and view all the answers

    What amount of cache memory did the Pentium have for instructions?

    <p>8 KB</p> Signup and view all the answers

    How much L1 cache did the Intel Pentium I Xeon have?

    <p>32 KB</p> Signup and view all the answers

    What was a key characteristic of the Intel Pentium's data bus?

    <p>32-bit</p> Signup and view all the answers

    Which feature was shared by both the Intel Pentium I and Intel Pentium I Xeon?

    <p>Both were 32-bit microprocessors</p> Signup and view all the answers

    What was the maximum L2 cache of the Intel Pentium I Xeon?

    <p>2 MB</p> Signup and view all the answers

    When was the Intel Pentium I introduced?

    <p>1997</p> Signup and view all the answers

    Which Intel Pentium model had a maximum execution capability of 333 million instructions per second?

    <p>Intel Pentium I</p> Signup and view all the answers

    What was the transistor count of the Intel Pentium II?

    <p>9.5 million</p> Signup and view all the answers

    In which year was the Intel Pentium V introduced?

    <p>2000</p> Signup and view all the answers

    What is the maximum clock speed of the microprocessor introduced in 2009?

    <p>3.33 GHz</p> Signup and view all the answers

    How many physical cores does the microprocessor introduced in 2010 have?

    <p>2</p> Signup and view all the answers

    What is the L3 cache size of the microprocessor launched in 2009?

    <p>8 MB</p> Signup and view all the answers

    Which feature allows the 8086 microprocessor to access memory locations?

    <p>20-bit address bus</p> Signup and view all the answers

    How many transistors does the microprocessor introduced in 2010 contain?

    <p>781 million</p> Signup and view all the answers

    What is the cache size for L2 cache per core in the microprocessor introduced in 2009?

    <p>256 KB</p> Signup and view all the answers

    What is the word size of the 8086 microprocessor?

    <p>16 bits</p> Signup and view all the answers

    Which of the following microprocessors has the highest clock speed?

    <p>Microprocessor introduced in 2009</p> Signup and view all the answers

    Study Notes

    Introduction to Microprocessors

    • Computer's Central Processing Unit (CPU) built on a single Integrated Circuit (IC) is called a microprocessor.
    • A digital computer with one microprocessor acting as a CPU is called a microcomputer.
    • It is a programmable, multipurpose, clock-driven, register-based electronic device.
    • It reads binary instructions from memory, accepts binary data as input, processes data according to instructions, and provides results as output.
    • The microprocessor contains millions of tiny components like transistors, registers, and diodes that work together.
    • It is an important part of a computer's architecture, without which a computer cannot function.
    • It takes input, performs arithmetic and logical operations, and produces the desired output.
    • In essence, a microprocessor is a digital device on a chip that fetches instructions from memory, decodes them, and executes them to give results.

    Basics of Microprocessor

    • A microprocessor takes a machine language set of instructions and executes them, telling the processor what to do.
    • During instruction execution, it performs basic operations (addition, subtraction, multiplication, division), and logical operations using its Arithmetic and Logical Unit (ALU).

    Program Counter (PC)

    • The program counter (PC) is a register that stores the address of the next instruction to be executed.
    • This address is determined by the value of the previous instruction's address in the corresponding microprocessing unit.

    Basic Terms Used in Microprocessors

    • Instruction Set: The group of commands that the microprocessor understands. It acts as an interface between hardware and software.
    • Bus: A set of conductors used to transmit data, address, or control information between components in a microprocessor. A microprocessor has three types of buses—data, address, and control.
    • IPC (Instructions Per Cycle): A measure of instructions a CPU can execute in a single clock cycle.

    Clock Speed

    • Clock Speed is the number of operations per second that a processor can perform.
    • It can be expressed in megahertz (MHz) or gigahertz (GHz). One GHz equals one billion cycles per second, while one MHz equals one million cycles per second.
    • Clock speed is also called the clock rate.
    • The number of bits processed in a single instruction is called Bandwidth.

    Word Length

    • The number of bits a processor can process at a time is called the word length.
    • An 8-bit microprocessor, for example, can process 8-bit data at a time.
    • Word length can range from 4 bits to 64 bits, depending on the type of microcomputer.
    • Microprocessors support multiple data types like binary, ASCII, signed numbers, and unsigned numbers.

    Features of Microprocessors

    • Low Cost: Integrated circuit technology makes microprocessors affordable.
    • High Speed: Due to involved technology, microprocessors operate at high speed, capable of executing millions of instructions per second.
    • Small Size: Large scale and ultra-large scale integration technology lead to smaller footprints, reducing overall system size.
    • Versatile: One chip can perform a variety of tasks.
    • Low Power Consumption: Metal-oxide semiconductor technology reduces power consumption.
    • Less Heat Generation: Semiconductor technology produces less heat compared to vacuum tube devices, leading to higher reliability.
    • Reliable: Semiconductor-based microprocessors have lower failure rates.
    • Portable: Small size and low power consumption make microprocessors portable.

    A μcomputer system

    • A computer system typically includes input devices (e.g., keyboard), a microprocessor (e.g., core 2 duo), memory (e.g., RAM, disk), and output devices (e.g., monitor). Data flows between these components.

    Evolution of Intel

    • Fairchild Semiconductors invented the first integrated circuit (IC) in 1959.
    • Intel was founded in 1968 by former Fairchild employees.
    • Intel's early processors (e.g., Intel 4004) were 4-bit and later became 8-bit and 16-bit.
    • Subsequent processors evolved to 32-bit (e.g., Intel 80386) and 64-bit (e.g., Intel Core 2 Duo, Intel Core i7).

    Internal Architecture of 8086

    • Internal Architecture is composed of BIU & EU, with BIU handling the bus transactions and EU handling processing instructions.
    • The BIU fetches instructions, reads and writes operands from/to memory, and calculates addresses.
    • The BIU manages a queue for instructions.
    • EU executes instructions from the queue.
    • The BIU has the Instruction queue, Segment registers, Instruction pointer, and Address adder.
    • EU has several components such as the Control Circuitry, Instruction decoder, ALU, Pointer and Index register, and Flag Register.
    • Execution units contains general purpose registers, stack pointer, base pointer, index registers, ALU, flag register, instruction decoder, and timing & control unit.

    Execution Unit Flag Register

    • A flag is a flip-flop indicating conditions produced by instruction execution.
    • The 8086 EU has a 16-bit flag register, including condition/control flags.
    • Some of these flags are Carry (CF), Parity (PF), Auxiliary Carry (AF), Zero (ZF), Sign (SF), and Overflow (OF) flags.
    • Another set of flags include the Trap, Interrupt, and Direction flags.

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    Description

    This quiz covers the fundamentals of microprocessors, including their definitions, components, and functionalities. Learn about how a microprocessor acts as the central processing unit in a microcomputer and plays a crucial role in computer architecture. Test your knowledge on the workings and operations of this essential electronic device.

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