Questions and Answers
What is a computer?
A computer is an electronic device that operates under instructions stored in its own memory. It can accept data, process data under specific instructions, and store the data for future use.
Some computers sit on top of a desk or on the floor while ____?
mobile computers and mobile devices are small enough to carry.
Mobile devices such as many cell phones often are classified as ____?
Computers
Computers are a ____?
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Through computers society has ____?
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Why is computer literacy vital to success in today's world?
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What is computer literacy?
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Computers process _______ into _______?
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What is data?
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What is information?
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Computers carry out processes using ____?
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What are instructions?
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Software is often defined as ____?
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What are the 5 essential elements of the information processing cycle?
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Important hardware components of a computer include ____?
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What is an input device?
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A computer keyboard contains keys you press to ____?
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A mouse is a small handheld device that ____?
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What is a pointer?
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A microphone allows you to ____?
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A scanner converts printed material such as __________ and ________ into a form the computer can use.
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A web cam is a _______ ________ _________ that allows you to create _____ or take ____ and store them on the computer instead of on _____ or ______.
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What is an output device?
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What are 3 commonly used output devices?
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What is the system unit?
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What is the motherboard?
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What are the two main components of the motherboard?
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What does CPU stand for?
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What is the function of the CPU/processor?
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What does memory on the motherboard consist of?
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What does storage hold?
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What is storage media?
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What are examples of storage media?
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What is a storage device?
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Types of storage devices include ______ and /
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Storage devices accept a ________ kind of storage media.
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Storage devices often function as a ________ __ _____ because they transfer items from storage to memory.
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Hard disks can be _______ or housed inside the system unit.
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Portable hard disks are either _______ or __________.
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What is an external hard disk?
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What is a removable hard disk?
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What is a communication device?
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Communications occur over cables, telephone lines, cellular radio networks, _______ and other transmission media.
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Transmission media such as __________ and _________ _________ _________ are wireless, which means they have no physical lines or wires.
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Study Notes
Computer Fundamentals
- A computer is an electronic device that processes data under stored instructions, managing input and output while allowing data to be saved for future use.
- Mobile computers and devices differ in size and portability from desktop computers, allowing for greater mobility.
Computer Classification
- Many mobile devices, such as cell phones, qualify as computers due to their processing capabilities.
Communication and Literacy
- Computers serve as a primary medium for local and global communication, enabling instant access to worldwide information.
- Computer literacy is crucial for success in modern society, reflecting a growing reliance on technology in daily life.
Data and Information
- Data consists of unprocessed items, including text, numbers, and multimedia, whereas information is the processed form of data that conveys meaning.
Processing Cycle
- Essential elements of the information processing cycle include: input, processing, output, storage, and communication.
Hardware Components
- Important hardware components comprise input devices, output devices, the system unit, storage devices, and communication devices.
- An input device allows entry of data and instructions into a computer, with examples including keyboards, mice, microphones, scanners, and webcams.
Output Devices
- Output devices convey information to users, with common examples being printers, monitors, and speakers.
System Unit and Motherboard
- The system unit houses the computer's electronic components, primarily the motherboard, which is the main circuit board containing critical components like the CPU and memory.
CPU and Memory
- The Central Processing Unit (CPU) interprets instructions and manages basic operations of the computer.
- Memory on the motherboard temporarily holds instructions and data that the CPU is processing.
Storage Concepts
- Storage retains data, instructions, and information for future retrieval, with storage media being the physical medium (e.g., USB drives, hard drives) that holds this information.
- Storage devices perform reading and writing operations on storage media, which can include specific types like drives and readers/writers.
Hard Disk Types
- Hard disks may be internal (within the system unit) or external, with portable options available as well, such as removable hard disks.
Communication Devices
- Communication devices enable data transmission between computers and mobile devices, utilizing various mediums including cables, telephone lines, and wireless technologies like satellites.
Wireless Transmission
- Wireless transmission media, such as satellites and cellular radio networks, facilitate communication without physical connections.
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Description
This quiz covers essential concepts of computer fundamentals, including the classification of computers and their role in communication and information processing. It explores the differences between mobile and desktop devices, the importance of computer literacy, and the processing cycle of data and information.