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Questions and Answers
What was a primary characteristic of first generation computers?
What was a primary characteristic of first generation computers?
Which of the following is NOT a disadvantage of first generation computers?
Which of the following is NOT a disadvantage of first generation computers?
What technology replaced vacuum tubes in second generation computers?
What technology replaced vacuum tubes in second generation computers?
How did the programming capabilities of second generation computers improve?
How did the programming capabilities of second generation computers improve?
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What was one major advantage of the first generation computers?
What was one major advantage of the first generation computers?
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Which application area was NOT listed under the applications of computers?
Which application area was NOT listed under the applications of computers?
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What was the input method for first generation computers?
What was the input method for first generation computers?
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Which feature distinguished second generation computers from their predecessors?
Which feature distinguished second generation computers from their predecessors?
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What technology was primarily used in the Fourth Generation of computers?
What technology was primarily used in the Fourth Generation of computers?
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Which of the following was a significant achievement during the Fourth Generation of computers?
Which of the following was a significant achievement during the Fourth Generation of computers?
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Which of the following high-level programming languages was NOT mentioned as used in the Fourth Generation of computers?
Which of the following high-level programming languages was NOT mentioned as used in the Fourth Generation of computers?
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What was a disadvantage of the Fourth Generation of computers?
What was a disadvantage of the Fourth Generation of computers?
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Which company was the first to develop a microprocessor?
Which company was the first to develop a microprocessor?
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What was a key benefit of computers from the Fourth Generation compared to previous generations?
What was a key benefit of computers from the Fourth Generation compared to previous generations?
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What does VLSI stand for?
What does VLSI stand for?
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Which of the following features characterized the Fifth Generation of computers?
Which of the following features characterized the Fifth Generation of computers?
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What type of memory is characterized by being volatile and losing data when the power is switched off?
What type of memory is characterized by being volatile and losing data when the power is switched off?
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Which type of RAM requires constant refreshing to maintain data?
Which type of RAM requires constant refreshing to maintain data?
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What is a major characteristic of Static RAM compared to Dynamic RAM?
What is a major characteristic of Static RAM compared to Dynamic RAM?
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Which of the following is NOT a characteristic of Primary Memory?
Which of the following is NOT a characteristic of Primary Memory?
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Why is Dynamic RAM preferred over Static RAM in most applications?
Why is Dynamic RAM preferred over Static RAM in most applications?
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What was a significant advantage of second generation computers compared to first generation computers?
What was a significant advantage of second generation computers compared to first generation computers?
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Which statement accurately describes the difference between Primary and Secondary Memory?
Which statement accurately describes the difference between Primary and Secondary Memory?
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Which of the following is a true statement about Static RAM?
Which of the following is a true statement about Static RAM?
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Which of the following statements correctly describes the use of input methods in third generation computers?
Which of the following statements correctly describes the use of input methods in third generation computers?
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Which of the following statements is true regarding Secondary Memory?
Which of the following statements is true regarding Secondary Memory?
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Which innovative element was introduced in third generation computers that contributed to their reduced size?
Which innovative element was introduced in third generation computers that contributed to their reduced size?
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What was a primary disadvantage of second generation computers?
What was a primary disadvantage of second generation computers?
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Which programming languages were standardized by ANSI during the third generation of computers?
Which programming languages were standardized by ANSI during the third generation of computers?
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Which of the following is a feature of third generation computers?
Which of the following is a feature of third generation computers?
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What major improvement in processing speed did third generation computers achieve?
What major improvement in processing speed did third generation computers achieve?
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Which of the following types of computers is considered a second generation computer?
Which of the following types of computers is considered a second generation computer?
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What is the primary difference between Assembly language and Machine language?
What is the primary difference between Assembly language and Machine language?
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Which of the following is NOT a characteristic of high-level languages?
Which of the following is NOT a characteristic of high-level languages?
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Which system software is responsible for converting Assembly language into Machine language?
Which system software is responsible for converting Assembly language into Machine language?
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What is the main function of an interpreter in programming languages?
What is the main function of an interpreter in programming languages?
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Which of the following is true regarding Assembly language?
Which of the following is true regarding Assembly language?
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Which of these options best describes the role of a compiler?
Which of these options best describes the role of a compiler?
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What is a common feature of high-level programming languages?
What is a common feature of high-level programming languages?
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Which of the following statements about Assembly language is FALSE?
Which of the following statements about Assembly language is FALSE?
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What is the main difference between a compiler and an interpreter?
What is the main difference between a compiler and an interpreter?
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Which of the following programming languages is typically compiled?
Which of the following programming languages is typically compiled?
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In the IF-ELSEIF-ELSE statement, what happens if the first condition is false?
In the IF-ELSEIF-ELSE statement, what happens if the first condition is false?
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Which statement accurately describes a while loop?
Which statement accurately describes a while loop?
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What is the purpose of a linker in programming?
What is the purpose of a linker in programming?
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What does the pseudocode segment with the IF statement check for?
What does the pseudocode segment with the IF statement check for?
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What is typically true about the execution speed of a compiled program compared to an interpreted one?
What is typically true about the execution speed of a compiled program compared to an interpreted one?
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In the algorithm for displaying numbers from 1 to N, what role does N play?
In the algorithm for displaying numbers from 1 to N, what role does N play?
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Study Notes
Introduction to Computers & Algorithms & Flowcharts
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Computers increase productivity and efficiency
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Computers process data at high speeds
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Computers help organize and store vast amounts of information
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Computers connect to the internet enabling data access and global communication
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Computers support decision-making through data analysis
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A computer is an electronic device that accepts data input, processes it, stores it temporarily, and produces output.
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Raw data becomes information after processing.
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Programs, written in programming languages, are sequences of instructions for a computer to perform specific tasks.
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Computers perform calculations at high speeds and are reliable.
Computer Generations
- First Generation (1940-1956): Vacuum tubes, large, costly, unreliable, limited calculations.
- Second Generation (1957-1963): Transistors replaced vacuum tubes, smaller and more reliable, higher-level languages (COBOL, FORTRAN) were introduced.
- Third Generation (1964-1971): Integrated circuits (ICs) reduced size and improved reliability, supported time-sharing operating systems.
- Fourth Generation (1972-1989): Very Large Scale Integration (VLSI) circuits led to microprocessors; faster processing, more powerful, GUI technology, personal computers.
- Fifth Generation (1990-present): Ultra-Large Scale Integration (ULSI) produced microprocessors with millions/billions of transistors, more powerful, efficient, reliable.
Characteristics of Computers
- Speed: Ability to perform calculations and tasks quickly.
- Accuracy: Ability to perform tasks with high precision.
- Automatic: Ability to perform tasks without manual intervention.
- Diligence: Ability to perform tasks persistently and repetitively.
- Memory: Ability to store vast amounts of information; primary(internal) & secondary(external) memory
- No Intelligent Quotient(IQ): Computers do not possess human intelligence.
- Economical: Cost-effectiveness; devices vary in price and capabilities
- Versatile: Ability to perform various tasks and adapt to different functionalities.
Applications of Computers
- Word Processing
- Internet/Web Browsing
- Digital Audio or Video Composition
- Desktop Publishing
- E-Business
- Bioinformatics
- Health Care
- GIS and Remote Sensing
- Meteorology
- Multimedia & Animation
- Legal Systems
- Retail Business
Computer System Memory Hierarchy
- External Memory (Secondary): Storage devices like magnetic disks, optical disks, and magnetic tapes that are not directly accessible by the CPU.
- Internal Memory (Primary): Memory directly accessible by the CPU, including main memory, cache memory, and CPU registers.
Computer Memory Types
- Primary Memory:
- RAM (Random Access Memory): Stores data and instructions that the computer is currently working with; volatile, easier access
- ROM (Read-Only Memory): Stores permanent instructions; non-volatile, required to boot the computer
- Secondary Memory:
- Hard Disk Drives (HDDs): Stores large amounts of data; non-volatile
- Flash Memory (e.g., USB drives, SSDs): Stores data; non-volatile; better than HDDs for read/writes speeds
- Optical Disks (e.g., CDs, DVDs): Stores data; non-volatile.
Computer Languages
- Machine Language: Lowest-level language; uses binary code (0s and 1s) understood by the computer's CPU directly
- Assembly Language: Uses mnemonics (shorthand symbols) to represent machine language instructions; easier to understand than machine language.
- High-Level Language (HLL): Uses English-like commands/syntax; requires translation into machine code; easier to use and faster to write. Includes Java, C, Python.
Translators
- Assembler: Translates assembly language into machine language, used for program instructions.
- Compiler: Translates high-level language into machine language all at once.
- Interpreter: Translates high-level language into machine language one line at a time.
Computer Networks
- LAN (Local Area Network): A group of computers in a limited area, like a building.
- WAN (Wide Area Network): A group of computers spread across a large geographic area, like a country or the world.
- Intranet: The company's internal version of the internet, used for internal communications and sharing.
- Extranet: A partially accessible internal company Web site designed only for authorized users physically located outside the organization.
Algorithms
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Algorithm: A step-by-step procedure for solving a problem. Algorithms should be clear, concise, and unambiguous.
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Flowchart: A graphical representation of the steps in an algorithm. Flowcharts use various symbols to represent different actions and decisions.
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Description
Test your knowledge on the characteristics and advancements of the first four generations of computers. This quiz covers key technologies, advantages, and programming capabilities that defined each generation. Assess your understanding of the evolution of computer technology and its impact on applications.