Computer History Overview

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Questions and Answers

What is the primary focus of CMSC 132?

  • Data Structures
  • Computer Architecture (correct)
  • Software Development Practices
  • Web Development Techniques

Which of the following is NOT a dimension of Instruction Set Architecture (ISA)?

  • Memory Management (correct)
  • Opcode Design
  • Data Types
  • Instruction Formats

In the context of the UPLB ICS Course Ladder, which course precedes CMSC 132?

  • CMSC 131 (correct)
  • CMSC 130
  • CMSC 123
  • CMSC 134

What is the significance of the Von Neumann Architecture in computer science?

<p>It outlines how computers store and process information. (A)</p> Signup and view all the answers

Which of the following best describes Instruction Set Architecture (ISA)?

<p>The set of instructions that a processor can execute. (B)</p> Signup and view all the answers

What is one of the primary concerns in computer architecture?

<p>How commands/instructions are represented (A)</p> Signup and view all the answers

When did electronic computers, as understood today, begin to emerge?

<p>1940s-1950s (C)</p> Signup and view all the answers

What distinguishes general-purpose computers from early electronic computers?

<p>Early computers were designed for specific purposes (B)</p> Signup and view all the answers

Which of the following is NOT mentioned as a concern in computer architecture?

<p>Optimizing software algorithms (C)</p> Signup and view all the answers

Which factor is emphasized as a consideration when developing computer architecture?

<p>Priority between speed, efficiency, or cost (B)</p> Signup and view all the answers

What is one of the primary roles of computer architecture in designing computers?

<p>Determine crucial attributes of a new computer (B)</p> Signup and view all the answers

What does Instruction Set Architecture (ISA) provide between hardware and software?

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

Which property of a good abstraction allows it to remain useful across many generations?

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

What is an aligned access in memory addressing?

<p>Access that meets the condition A mod s = 0 (C)</p> Signup and view all the answers

Which of the following best describes memory addressing in most desktop and server computers?

<p>Byte addressing (B)</p> Signup and view all the answers

What are general-purpose architectures primarily used for?

<p>Flexible and varied computational tasks (B)</p> Signup and view all the answers

What does encoding an ISA refer to?

<p>Transforming instructions into binary code (C)</p> Signup and view all the answers

Which is a component of the seven dimensions of Instruction Set Architecture (ISA)?

<p>Class of ISA (B)</p> Signup and view all the answers

Which type of addressing mode directly specifies a constant value in an instruction?

<p>Immediate addressing (B)</p> Signup and view all the answers

What is one of the key benefits of variable length instructions in instruction set architecture?

<p>Less space usage compared to fixed length (B)</p> Signup and view all the answers

Which of the following is NOT a general category of operations in instruction set architecture?

<p>Neural network (B)</p> Signup and view all the answers

What does the Von Neumann architecture primarily consist of?

<p>Memory Unit, CPU, I/O, and Storage (C)</p> Signup and view all the answers

Which type of operand size could represent a floating point number in single precision?

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

Which component is known for high electric consumption and heat generation?

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

What feature distinguishes integrated circuits from transistors?

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

In which decade did desktop computers emerge as a significant form of computing?

<p>1980s (C)</p> Signup and view all the answers

What term was coined by IBM in 1964 related to computer systems?

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

Which of the following statements about transistors is NOT true?

<p>They generate more heat than vacuum tubes. (A)</p> Signup and view all the answers

What was significant about the computers of the 1990s?

<p>Emergence of the Internet and high-performance digital devices. (C)</p> Signup and view all the answers

Which type of computer was prominent during the 1970s?

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

What aspect of computer architecture allows machines with the same architecture to run the same software?

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

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Study Notes

Decrypting and Encrypting Messages

  • Essential methods for protecting sensitive information in digital communications.

Numeric Computing

  • Facilitates complex calculations using numerical data, crucial in scientific and financial applications.

Business Computation

  • Utilizes computational models to analyze business scenarios and improve decision-making.

Computer History Overview

  • Electronic computers began development in the 1940s-1950s, focusing initially on specific tasks rather than general purposes.

Components of Early Computers

  • Vacuum Tube: Unreliable, high power consumption, and generates excess heat. Formats include diodes and triodes.
  • Transistor: Smaller and more reliable than vacuum tubes, with reduced power consumption.
  • Integrated Circuit: Compact and efficient, more reliable than individual transistors.

Evolution of Computer Types

  • 1960s: Rise of mainframes, large and expensive systems for centralized tasks.
  • 1970s: Introduction of minicomputers, more affordable and accessible.
  • 1980s: Emergence of desktop computers, making computing personal and widely available.
  • 1990s: Internet and World Wide Web growth, leading to handheld digital devices and high-performance electronics.

Introduction to Computer Architecture

  • Term introduced by IBM in 1964 with the IBM 360, influencing future computer design.
  • Refers to the visible part of a computer’s instruction set that programmers must understand.

Importance of Computer Architecture

  • Essential for designing computers that are efficient, performant, and cost-effective.
  • Includes defining supported instructions and memory usage within systems.

Instruction Set Architecture (ISA)

  • Serves as the interface between hardware and software, specifies compatible instructions for processors.
  • Fundamental in ensuring software can run across different machine architectures.

Characteristics of Good ISA

  • Portability across generations, versatility for various applications, convenient functionality for higher-level languages, and efficient lower-level implementation.

Dimensions of ISA

  • Class of ISA: General-purpose vs special-purpose registers.
  • Memory Addressing: Typically byte addressing in most computers.
  • Addressing Modes: Examples include Immediate, Register, and Displacement addressing.
  • Operand Types: Ranges from 8-bit to 64-bit, including various formats like ASCII and IEEE 754.
  • Control Flow Instructions: Essential for managing the flow of execution (e.g., branches and jumps).
  • Instruction Encoding: Can be fixed or variable length, impacting space and efficiency.

Von Neumann Architecture

  • Proposed by John von Neumann, includes a Central Processing Unit, Memory Unit, Storage, and Input/Output systems.
  • Serves as a foundational model for most modern computer systems, emphasizing the stored-program concept.

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