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Questions and Answers
A computer system consists of only two main components: hardware and software.
A computer system consists of only two main components: hardware and software.
False
The primary function of a computer is to store data.
The primary function of a computer is to store data.
False
The user is a part of the computer hardware.
The user is a part of the computer hardware.
False
A computer takes data as input, processes it, and then stores the result.
A computer takes data as input, processes it, and then stores the result.
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Software is a physical component of a computer system.
Software is a physical component of a computer system.
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A computer produces an output without processing the input data.
A computer produces an output without processing the input data.
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A computer system consists of a keyboard and a printer as software components.
A computer system consists of a keyboard and a printer as software components.
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In a computer system, the user is responsible for processing the data.
In a computer system, the user is responsible for processing the data.
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Computer is not used in business organizations for payroll calculations.
Computer is not used in business organizations for payroll calculations.
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Banks do not provide online accounting facility.
Banks do not provide online accounting facility.
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Computers are not used in education for online classroom learning.
Computers are not used in education for online classroom learning.
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Computers are used in healthcare for diagnostic systems.
Computers are used in healthcare for diagnostic systems.
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Computer is not used in communication for transferring pictures.
Computer is not used in communication for transferring pictures.
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Computers are used in business organizations for managing employee database.
Computers are used in business organizations for managing employee database.
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ATM machines are not completely automated.
ATM machines are not completely automated.
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Computers are not used in healthcare for patient monitoring systems.
Computers are not used in healthcare for patient monitoring systems.
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A computer can perform around 1-2 million simple instructions per second.
A computer can perform around 1-2 million simple instructions per second.
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Humans can store larger amounts of data than computers.
Humans can store larger amounts of data than computers.
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Computers can only be used in a limited number of fields.
Computers can only be used in a limited number of fields.
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Modern electronic components in computers have short lives.
Modern electronic components in computers have short lives.
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Computers are unreliable machines.
Computers are unreliable machines.
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Computers are not used in business organizations.
Computers are not used in business organizations.
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Computers can only perform calculations with 50% accuracy.
Computers can only perform calculations with 50% accuracy.
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Computers need to rest after working continuously for a few hours.
Computers need to rest after working continuously for a few hours.
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The first generation of computers used transistor technology.
The first generation of computers used transistor technology.
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The second generation of computers was more reliable than the first generation.
The second generation of computers was more reliable than the first generation.
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The third generation of computers was based on machine language only.
The third generation of computers was based on machine language only.
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Video-conferencing is an example of asynchronous communication.
Video-conferencing is an example of asynchronous communication.
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The first generation of computers generated less heat.
The first generation of computers generated less heat.
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The second generation of computers was very portable.
The second generation of computers was very portable.
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The period of the first generation of computers was from 1959-1965.
The period of the first generation of computers was from 1959-1965.
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The second generation of computers was slower than the first generation.
The second generation of computers was slower than the first generation.
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The third generation of computers generated more heat than the previous two generations.
The third generation of computers generated more heat than the previous two generations.
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The period of the fourth generation of computers is from 1971 to 1980.
The period of the fourth generation of computers is from 1971 to 1980.
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The fifth generation of computers used Microprocessor technology.
The fifth generation of computers used Microprocessor technology.
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The main feature of the fifth generation of computers is the development of true artificial intelligence.
The main feature of the fifth generation of computers is the development of true artificial intelligence.
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The third generation of computers was very cheap.
The third generation of computers was very cheap.
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The fourth generation of computers was portable.
The fourth generation of computers was portable.
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The fifth generation of computers is still in the development phase.
The fifth generation of computers is still in the development phase.
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The third generation of computers supported low-level language.
The third generation of computers supported low-level language.
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Study Notes
Introduction to Computer
- Technology plays an important role in all aspects of life, making it a necessity for everyone to know about computers.
Computer System
- A computer is an advanced electronic device that takes data as input, processes it under the control of a set of instructions, produces a result, and saves it for future use.
- A computer system consists of three main components: Hardware, Software, and User.
- Hardware refers to physical components like screens, cables, keyboards, and printers.
- Software refers to non-physical components, a set of instructions that tells the computer what to do and how to do it.
- User refers to a person who uses the software on the computer to do some tasks.
Functionalities of a Computer
- Step 1: Takes data as input.
- Step 2: Stores the data in its memory and uses them as required.
- Step 3: Processes the data and converts it into useful information.
- Step 4: Generates the output.
- Step 5: Controls all the above four steps.
Advantages of Computers
- High Speed: Can perform calculations of a large amount of data in a few seconds, about 3-4 million simple instructions per second.
- Accuracy: Computers are very accurate devices where the calculations are 100% error-free.
- Storage Capability: Can store very large amounts of data than human beings, including images, videos, text, audio, etc.
- Diligence: Can work continuously without any error and perform repeated tasks with the same speed and accuracy.
- Versatility: Can be used to solve problems related to various fields, such as air reservation, banks, hotels, weather forecasting, etc.
- Reliability: A computer is a reliable machine, and modern electronic components have long lives.
Application of Computers
- Business: Used for payroll calculations, budgeting, sales analysis, financial forecasting, and managing employee databases.
- Banking: Used for online accounting facilities, ATM machines, checking current balance, making deposits, checking interest charges, and shares.
- Education: Helps in providing online classroom learning, simplifying record keeping, creating documents, online library, and tracking student performance.
- Healthcare: Used in diagnostic systems, lab-diagnostic systems, and patient monitoring systems.
- Communication: Used for email, chatting (social media), and video-conferencing.
Generation of Computers
- First Generation (1946-1959): Vacuum tube technology, unreliable, supported machine language only, very expensive, generated a lot of heat, slow input and output devices, huge size, and non-portable.
- Second Generation (1959-1965): Transistor-based, reliable, smaller and more compact, generated less heat, consumed less electricity, faster, and supported machine and assembly languages.
- Third Generation (1965-1971): Integrated Circuit-based, more reliable, smaller size, generated less heat, faster, lesser maintenance, costly, and supported high-level language.
- Fourth Generation (1971-1980): Microprocessor-based, very cheap, portable, reliable, used PCs, very small size, concept of internet was introduced, and great developments in the fields of networks.
- Fifth Generation (1980-onwards): Ultra Large-Scale Integration-based, development of true artificial intelligence, development of natural language processing, more user-friendly interfaces with multimedia features, and availability of very powerful and compact computers at cheaper rates.
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Description
This quiz covers the basics of computers, including their functionalities, advantages, and applications. It also touches on the different generations of computers.
