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Questions and Answers
Which classification of computers uses electronic devices and systems to perform tasks?
Which of the following is not part of the first generation of computers?
Which device is associated with the fourth generation of computers?
What is the minimum processing speed for devices classified in the fourth generation of computers?
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Which of the following is an example of an Electro-Mechanical Processing/Device?
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Which of these devices belongs to the fifth generation of computers?
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Which device from the third generation of computers is known for its significant processing speed?
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Which of the following is a purely manual device?
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What characteristic of computers allows them to perform millions of instructions in a short amount of time?
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Which feature of computers ensures that calculations are performed with high precision?
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What allows computers to work continuously without fatigue?
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What does the versatility of a computer refer to?
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How does the power of remembering benefit computer users?
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What does IT stand for?
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Which of the following best describes hardware?
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What does ICT focus on?
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Study Notes
Characteristics and Capabilities of Computers
- Speed: Computers execute millions of instructions per second, greatly reducing the time required for calculations compared to manual methods.
- Accuracy: Computers perform calculations with high precision, ensuring that reports and processed data are reliable and correct.
- Diligence: Computers can operate continuously without fatigue, maintaining performance and accuracy over long periods.
- Versatility: Capable of handling diverse tasks, from payroll preparation to analyzing vast datasets in various fields like finance and healthcare.
- Power of Remembering: Computers can store and retrieve large amounts of data indefinitely, facilitating easy access to old and new files.
Information Technology (IT) and Information and Communications Technology (ICT)
- IT: Refers to the use of computers and other devices to create, process, store, secure, and exchange electronic data.
- ICT: Encompasses technologies that enable access to information through telecommunications, including internet, wireless networks, and software applications.
Hardware and Software
- Hardware: Tangible physical components of a computer system, including devices like mouse, keyboard, CPU, and HDD/SSD.
- Software: Set of instructions or programs that dictate how hardware performs tasks, including applications like web browsers and photo editing software.
Classification of Computers
- Manual-Mechanical Devices: Operated manually; examples include abacus and tally sticks.
- Electro-Mechanical Devices: Combine electrical and mechanical elements; examples include electric typewriters and Jacquard looms.
- Electronic Devices: Use of electronic systems for data manipulation and transmission; examples include personal computers and smartphones.
- Purely Manual Devices: Use of traditional methods for data handling; examples include paper and pencil.
Generations of Computers
- 1st Generation: Featured valves and vacuum tubes; devices included UNIVAC I and ENIAC.
- 2nd Generation: Marked by the transition to transistors; notable devices included IBM 650 and TRADIC.
- 3rd Generation: Introduced integrated circuits; notable systems were IBM System 360 and CDC 1604.
- 4th Generation: Characterized by microprocessors; included devices like smart tablets and iPhones with processing speeds starting at 100 million instructions per second.
- 5th Generation: Focused on artificial intelligence and advanced computational capabilities; notable examples include Google DeepMind and IBM Quantum Computers.
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Description
This quiz covers the important characteristics and capabilities of computers, focusing on their speed and accuracy. It highlights how computers perform tasks significantly faster and with higher precision than manual processes. Ideal for students preparing for ELEC111.
