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Questions and Answers
What is one potential negative effect of increased access to information through the Internet?
What is one potential negative effect of increased access to information through the Internet?
Which of the following is a positive impact of Information and Communication Technology (ICT)?
Which of the following is a positive impact of Information and Communication Technology (ICT)?
How does ICT help individuals with visual impairments?
How does ICT help individuals with visual impairments?
What is a consequence of reduced physical activity associated with ICT?
What is a consequence of reduced physical activity associated with ICT?
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What challenge does cost present related to ICT systems?
What challenge does cost present related to ICT systems?
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What is one potential downside of exposure to greater competition through ICT?
What is one potential downside of exposure to greater competition through ICT?
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Which of the following is NOT a positive impact of enhanced communication technologies?
Which of the following is NOT a positive impact of enhanced communication technologies?
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What aspect of ICT positively influences education?
What aspect of ICT positively influences education?
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What type of memory is referred to as Main Memory or Primary Memory?
What type of memory is referred to as Main Memory or Primary Memory?
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Which of the following is not a type of input hardware?
Which of the following is not a type of input hardware?
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What is the main function of registers in a computer system?
What is the main function of registers in a computer system?
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Which type of terminal can perform both input and output functions?
Which type of terminal can perform both input and output functions?
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What is the primary advantage of hybrid computers compared to pure analog or digital computers?
What is the primary advantage of hybrid computers compared to pure analog or digital computers?
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What characteristic of RAM distinguishes it from ROM?
What characteristic of RAM distinguishes it from ROM?
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Which type of computer is described as having processing power below that of mainframes but above personal computers?
Which type of computer is described as having processing power below that of mainframes but above personal computers?
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What is the role of Optical Mark Recognition (OMR)?
What is the role of Optical Mark Recognition (OMR)?
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What type of memory contains permanently stored instructions that cannot be changed?
What type of memory contains permanently stored instructions that cannot be changed?
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In which decade did minicomputers gain significant popularity?
In which decade did minicomputers gain significant popularity?
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Which of the following devices is primarily used for scanning and sending images?
Which of the following devices is primarily used for scanning and sending images?
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What special equipment do some hybrid computers utilize?
What special equipment do some hybrid computers utilize?
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Why have minicomputers become almost extinct in recent years?
Why have minicomputers become almost extinct in recent years?
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What type of problems are hybrid computers particularly suited to solve?
What type of problems are hybrid computers particularly suited to solve?
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What is the processing speed described for the small computers mentioned?
What is the processing speed described for the small computers mentioned?
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Which type of computer is considered the most powerful in terms of speed and accuracy?
Which type of computer is considered the most powerful in terms of speed and accuracy?
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What is the primary function of a scanning device?
What is the primary function of a scanning device?
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Which device is considered a pointing device?
Which device is considered a pointing device?
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What is a smart card primarily used for?
What is a smart card primarily used for?
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Which type of device translates bar code symbols into digital forms?
Which type of device translates bar code symbols into digital forms?
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What does the trackball function as?
What does the trackball function as?
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What is the main purpose of a CPU in a computer?
What is the main purpose of a CPU in a computer?
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Which of the following devices is used to collect specific data directly from the environment?
Which of the following devices is used to collect specific data directly from the environment?
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What is an optical card?
What is an optical card?
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What type of memory is primarily utilized for holding data and instructions temporarily?
What type of memory is primarily utilized for holding data and instructions temporarily?
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Which of the following refers to non-volatile storage?
Which of the following refers to non-volatile storage?
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Which component is responsible for controlling the speed of operations within a computer?
Which component is responsible for controlling the speed of operations within a computer?
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What type of storage uses a laser beam to pack information onto a movable disk?
What type of storage uses a laser beam to pack information onto a movable disk?
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Which of the following components is NOT a type of primary storage?
Which of the following components is NOT a type of primary storage?
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Which of these serves as a socket on the motherboard for connecting expansion cards?
Which of these serves as a socket on the motherboard for connecting expansion cards?
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What recording medium is characterized by magnetized spots on a coated surface, used for data storage?
What recording medium is characterized by magnetized spots on a coated surface, used for data storage?
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Which type of memory contains built-in programs that are essential for computer startup?
Which type of memory contains built-in programs that are essential for computer startup?
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Study Notes
Data Processing and ICT Trends
- Data processing includes outsourcing work to lower-cost countries, resulting in workforce reduction as fewer employees handle the same tasks.
- Increased access to information via the Internet enhances communication, education, and social interaction opportunities but can also lead to feelings of isolation.
- ICT tools, like digital cameras and editing software, empower individuals with disabilities to access content that was previously unavailable.
- VoIP, email, messaging, and video conferencing offer cost savings over traditional communication methods, promoting efficiency.
- The processing speed of modern computers can reach 100 million instructions per second.
Types of Computers
- Supercomputers are the fastest and most accurate, solving complex calculations.
- Hybrid computers combine characteristics of analog and digital types, aiding in specific scientific and engineering problems.
- Minicomputers provide a cost-effective alternative for processes between PCs and mainframes, although they are less common today.
Computer Hardware Components
- Input hardware collects and converts data for processing purposes, while output hardware displays or presents processed information.
- Memory types include RAM (volatile, temporary storage) and ROM (non-volatile, permanent instructions).
- Specialized devices like MICR, OMR, and OCR aid in reading and processing unique forms of input.
Terminal Types
- Dumb terminals function solely for input and output.
- Smart terminals perform limited processing and feature both input and output capabilities.
- Intelligent terminals are fully equipped microcomputers with communication functionality.
Input and Output Devices
- Keyboards serve as the primary input method, while devices like scanners, voice recognition, and imaging systems facilitate various input forms.
- Pointing devices include mice, trackballs, and light pens for intuitive navigation.
- Bar code readers and character recognition devices translate physical inputs into digital formats.
Storage Solutions
- Internal storage is divided into primary (RAM) and secondary (hard disks, magnetic tapes) storage, with an emphasis on non-volatile forms for long-term data retention.
- Cache memory enhances CPU efficiency by providing rapid access to frequently used data.
- Expansion slots on motherboards support additional hardware, enhancing system capabilities.
System Unit Components
- The CPU serves as the microprocessor, executing instructions and managing processes.
- The motherboard contains electrical components essential for computer operation, acting as the main circuit board.
- Power supply converts AC to DC power, enabling the computer's functionality.
Data Transmission and Port Types
- Ports serve as connection points for external devices, allowing data exchange between the computer system and peripherals.
- PCMCIA slots accommodate individual card devices, prevalent in portable computing.
Types of Memory
- RAM functions as the main memory, losing data when power is off.
- ROM provides permanent storage for crucial instructions that do not change.
- High-speed cache memory provides immediate access for the CPU, optimizing processing times.
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Description
Explore the dynamics of how globalization impacts young people's self-confidence and social skills, particularly in the context of remote work and data processing. This quiz delves into the benefits and challenges of increased access to information and services due to the Internet.