Computer Architecture Quiz

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Questions and Answers

What is the primary reason for using cache memory in a computer system?

  • To reduce the cost of dynamic memory
  • To increase the speed of data processing (correct)
  • To eliminate the need for main memory
  • To provide storage for the operating system

What type of memory is primarily used in main memory systems?

  • Dynamic memory (DRAM) (correct)
  • Read-Only memory (ROM)
  • Flash memory
  • Static memory (SRAM)

Which cache level is accessed first by the CPU when looking for data?

  • L2 Cache
  • L1 Cache (correct)
  • Main Memory
  • L3 Cache

In modern processors, where is cache memory typically integrated?

<p>Within the processor core (B)</p> Signup and view all the answers

What is a significant drawback of using static memory (SRAM) compared to dynamic memory (DRAM)?

<p>SRAM is much more expensive than DRAM (A)</p> Signup and view all the answers

What was the first commercial computer developed in 1951?

<p>UNIVAC 1 (B)</p> Signup and view all the answers

Which of the following integrated circuits was developed in 1958?

<p>Integrated circuits (A)</p> Signup and view all the answers

What was significant about the IBM System 360 introduced in the mid-1960s?

<p>It was a family of computers with a common architecture. (A)</p> Signup and view all the answers

What was the first microprocessor released by Intel in 1971?

<p>4004 (A)</p> Signup and view all the answers

Which microprocessor is classified as an 8-bit processor?

<p>8008 (C)</p> Signup and view all the answers

Which of the following processors was released after the 4004 and is a 16-bit microprocessor?

<p>80286 (C)</p> Signup and view all the answers

Which company developed the PDP-1, known for being the first to have a keyboard and mouse?

<p>DEC (C)</p> Signup and view all the answers

Which of the following microprocessors has a 32-bit architecture?

<p>Pentium Pro (C)</p> Signup and view all the answers

Who founded the company that developed the first microprocessor, the 4004?

<p>Intel (C)</p> Signup and view all the answers

What is the role of the function units in a processor?

<p>Execute different types of instructions (A)</p> Signup and view all the answers

What is a significant risk associated with overclocking a processor?

<p>Potential damage to the processor and motherboard (B)</p> Signup and view all the answers

What is the recommended practice when it comes to overclocking?

<p>Best done with caution and by professionals (C)</p> Signup and view all the answers

Which technology allows processors to fit millions of transistors in a small area?

<p>Micron technology (C)</p> Signup and view all the answers

What limits the compatibility of processors with motherboards?

<p>The specific model of the processor and socket type (C)</p> Signup and view all the answers

What can happen if cooling is inadequate during overclocking?

<p>Frequent system freezes may occur (D)</p> Signup and view all the answers

What speeds can contemporary processors typically operate at?

<p>100, 133, 333 MHZ and higher (D)</p> Signup and view all the answers

What does CISC architecture facilitate regarding microcode?

<p>It allows new instructions to be easily added. (A)</p> Signup and view all the answers

One of the disadvantages of CISC architecture includes which of the following?

<p>Increased amount of clock cycles for different instructions. (C)</p> Signup and view all the answers

Which of the following statements regarding flag status in CISC is accurate?

<p>Flags act as side effects of instructions, causing additional cycles. (D)</p> Signup and view all the answers

How did RISC architecture evolve in relation to CISC architecture?

<p>As a response to the limitations of processors. (B)</p> Signup and view all the answers

Which characteristic of CISC architecture directly impacts the speed of instruction execution?

<p>Complexity of individual instruction codes. (B)</p> Signup and view all the answers

What is a feature of microprogramming in CISC architecture?

<p>It can be executed easily and cost-effectively. (D)</p> Signup and view all the answers

Which of the following best describes the dynamics of instruction execution in CISC?

<p>Instructions vary widely in their execution time and clock cycles. (D)</p> Signup and view all the answers

What advantage does CISC architecture have over RISC when it comes to programming?

<p>Ability to run older programs without modification. (B)</p> Signup and view all the answers

Which company or companies were pivotal in the development of RISC architecture?

<p>IBM, Apple, and Motorola. (B)</p> Signup and view all the answers

Which aspect of hardware implementation is associated with CISC?

<p>Flexibility in command lengths and execution time. (D)</p> Signup and view all the answers

What is a characteristic of programs written for the Intel 80x86 architecture?

<p>They can only run on processors with the same architecture. (A)</p> Signup and view all the answers

Which statement best describes the speed mismatch problem?

<p>The design improvements in processors have outpaced those in memory. (D)</p> Signup and view all the answers

What distinguishes dynamic memory from static memory?

<p>Static memory does not use capacitors, making it faster to respond to requests. (B)</p> Signup and view all the answers

Which of the following is NOT a group into which memories are divided?

<p>Tape (D)</p> Signup and view all the answers

What technology do dynamic memories primarily rely on?

<p>FETs structured in groups. (D)</p> Signup and view all the answers

What happens to the logical states in dynamic memory during operation?

<p>They require time to be charged and discharged. (A)</p> Signup and view all the answers

What was a characteristic of early microprocessors compared to memory?

<p>Processors operated at lower speeds than memory. (D)</p> Signup and view all the answers

What is the chief benefit of separating commands and data in memory design?

<p>It significantly decreases processing time due to faster access. (B)</p> Signup and view all the answers

What role do additional instruction sets like SSE and 3D Now! play in processors?

<p>They provide optimizations for specific processors. (C)</p> Signup and view all the answers

In terms of memory architecture, which statement is accurate?

<p>Dynamic memory is composed of transistors and capacitors. (A)</p> Signup and view all the answers

Flashcards

Execution Unit

The part of a processor responsible for executing instructions, such as addition or conditional branching.

Function Units

Specialized units within a processor that handle different types of instructions. For example, an Arithmetic/Logic Unit (ALU) handles arithmetic operations, while a Floating Point Unit (FPU) handles fractional numbers.

Overclocking

The process of increasing a processor's clock speed beyond its factory settings, potentially leading to increased performance but also risks like overheating.

Bus Speed

A measure of how fast data can be transmitted between components, often expressed in MHz.

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Slot Socket

A type of processor socket where the processor connects to the motherboard using a flat slot, typically found in older systems.

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Socket Socket

A type of processor socket where the processor connects to the motherboard using square pins, more common in modern systems.

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Micron Technology

The technology used to manufacture processors, allowing for millions of transistors to be packed into small areas of silicon.

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RISC Architecture

A type of computer architecture where instructions are broken down into simpler, fixed-length instructions. This allows for simpler and faster execution.

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CISC Architecture

A type of computer architecture where instructions can vary in length and complexity. This allows for more powerful and flexible instructions.

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Decoding

The process of translating high-level programming language into machine-readable code. This involves breaking down complex commands into simpler instructions.

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Processable Codes

The lowest level of code that a computer can understand. It controls the hardware components directly.

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Microprogramming

A technique that allows for easy modification and expansion of instructions. This is used in CISC architectures for backward compatibility.

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Backward Compatibility

The ability of a new computer system to run programs designed for older systems.

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Clock Cycles

The time it takes for a computer to execute an instruction.

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Flag Bits

A feature that indicates the status of a processor, such as whether an operation was successful or not.

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Memory Speed

The speed at which data can be transferred between the processor and memory.

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Processor Architecture Design

The process of designing a computer processor with specific performance goals. This can involve choosing between CISC or RISC architectures.

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UNIVAC 1

The first commercially produced computer, developed in 1951. It used binary code (0s and 1s) to represent instructions and data.

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Integrated Circuits

A type of electronic circuit that integrates multiple components on a single chip. This development revolutionized computer design, paving the way for smaller and more powerful computers.

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Magnetic Core Cell Memories

Memory that uses magnetic cores to store data. It provided faster access to information compared to previous technologies.

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IBM System 360

A computer system developed by IBM in the mid-1960s, notable for its modularity and compatibility, leading to widespread adoption.

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PDP-1

A significant early computer produced by DEC, notable for being the first to feature a keyboard and mouse, pioneering modern user interaction.

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Microprocessor

A computer processor contained on a single chip, marking a major milestone in miniaturization and affordability.

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Intel 4004

The first microprocessor released by Intel in 1971. This 4-bit processor was a significant innovation in the evolution of computing.

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32-Bit Processor

A central processing unit (CPU) that can process 32 bits of data simultaneously, enabling faster and more complex calculations.

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64-Bit Processor

A central processing unit (CPU) that can process 64 bits of data simultaneously, offering even greater computing power and performance.

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Cache

A small, fast memory built into the CPU that stores frequently used data. It's accessed before main memory, speeding up data retrieval.

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Main Memory

The main memory of a computer system, typically DRAM. It holds data and instructions that are currently being used by the processor.

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SRAM (Static RAM)

A type of memory that is faster and more expensive than DRAM, used for caches (L1, L2, and L3). It holds data that is frequently accessed.

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DRAM (Dynamic RAM)

A type of memory that is cheaper but slower than SRAM, used for main memory (DRAM). It needs constant refreshing to retain data.

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Cache Levels (L1, L2, L3)

Different levels of cache memory, with L1 being the fastest and closest to the CPU, while L3 is slower and further away.

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Intel 80x86 Architecture

The fundamental design and instruction set used in Intel 80x86 processors, defining how instructions are executed by the CPU.

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Instruction Set Extensions (SSE, 3D Now!)

Extended Instruction Set Extensions (SSE) and 3D Now! are additional optimizations specific to Intel and AMD processors, respectively, offering faster performance for certain tasks.

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Dynamic RAM (DRAM)

A type of memory that uses capacitors to store data. It's slower than static RAM but less expensive.

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Static RAM (SRAM)

A type of memory that utilizes flip-flops (transistors) to store data. It is faster than DRAM but more expensive.

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Speed Mismatch

The difference in speed between the processor and memory, leading to performance bottlenecks. This happens when the CPU is faster than the memory, causing the processor to wait for data.

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Cache System

A temporary storage location within the CPU that holds frequently accessed data for faster retrieval.

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Memory

A system-wide collection of electronic components that handle all communication between various parts of the computer, including processor, memory, and peripherals.

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Study Notes

Introduction to Information Technologies (WICT 101)

  • This course is an introduction to information technologies
  • It is taught by Dr. Murat ARSLAN
  • Contact email is [email protected]

What is a Computer?

  • A computer is an electronic machine that performs logical and arithmetic operations
  • It receives data from the user, processes data, stores results, and accesses information
  • It's fast, doesn't get tired, and can be programmed
  • Computers do not function independently. They need instructions (software) to perform actions.

Computer Components

  • Input: Data enters the computer (e.g., keyboard, mouse, microphone)
  • Processing: Data is manipulated according to instructions (e.g., CPU)
  • Memory: Data is stored (e.g., RAM, hard drive)
  • Output: Results are presented (e.g., monitor, printer, speakers)

Types of Computers

  • Macro Computers (Mainframe): Large, powerful computers used by large organizations (e.g., data processing centers, universities)
  • Mini Computers: Mid-sized computers used by medium-sized businesses
  • Micro Computers (Personal Computers - PCs): Designed for a single user (e.g., desktops, laptops)

Networks

  • Networks connect computers to share data, hardware, and software
  • This reduces costs and speeds up work
  • Network types include LAN (Local Area Network), WAN (Wide Area Network), Intranet, and Internet
  • Each user has a username and password for security, changed as needed

Computer Software

  • Free to Use Software (Public Domain): Open-source software anyone can use
  • Shareware: Copyrighted software for trial use, with a purchase necessary for permanent use
  • Operating System: Software that manages computer resources, facilitating interactions between the user and the computer (e.g., Windows, macOS, Linux)
  • Disk Operating System (DOS): A type of operating system (e.g., Windows 3.1, 95, 98, DOS, macOS, UNIX, LINUX)

Useful Software and Programs

  • Device drivers: Programs that operate hardware devices
  • Programming languages: Instructions for computers (e.g., C, Pascal, Java)
  • Application programs: Specialized software for specific tasks (e.g., word processors, spreadsheets, games)
  • Commercial software: Software for business purposes (e.g., accounting, forecasting)
  • Educational/Application software: Programs for learning and performing tasks (e.g., educational software, simulations)
  • Multimedia software: Integrates sound, video, animation, and images (e.g., multimedia encyclopedias)

Computer Files

  • File names consist of a name and an extension (e.g., document.doc)
  • Working files (.exe, .com) run without additional programs
  • Source files need translation before use
  • Data files (.doc) can be changed or printed

Computer and Health

  • Appropriate posture and distance from the screen are important while using computers
  • Regular breaks and eye exercises are important for computer users.

Basic Concepts of Computers

  • Analog Computers: Use continuous signals (e.g., thermometer). They are less common now.
  • Digital Computers: Use discrete signals represented as numbers (e.g., 0 and 1). They are very common.
  • Hybrid Computers: Combine analog and digital features.

CPU (Central Processing Unit)

  • Brains of the computer
  • Performs operations and sends results
  • Measured by MHz or GHz, higher numbers mean faster speed
  • Consists of transistors and circuits
  • Essential for performing calculations

Overclocking

  • Technically increasing the speed of a processor
  • Risky, if not done properly

Caches

  • A special type of memory inside the processor that stores frequently used data
  • Increases processor speed

Hyperthreading

  • Allows a single processor to act Like multiple processors
  • Increases performance

Computer History

  • Early calculating devices (e.g., Abacus, Pascaline, Difference Engine)
  • Development of electronic computers and components
  • Progression of computer generations (Mechanical, Electronic, Microprocessor)

Computer Architecture

  • CISC (Complex Instruction Set Computer): Uses complex instructions, which are more helpful for tasks but consume more system resources
  • RISC (Reduced Instruction Set Computer): Uses simple instructions, which do not consume so many resources

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