Podcast
Questions and Answers
What is the primary purpose of a computer in simple terms?
What is the primary purpose of a computer in simple terms?
- To create new data
- To store data indefinitely
- To process data into information (correct)
- To serve as a communication device
The information processing cycle consists of only input and output steps.
The information processing cycle consists of only input and output steps.
False (B)
List the four key parts of a computer system.
List the four key parts of a computer system.
Hardware, software, data, users
Which of the following describes a peripheral device?
Which of the following describes a peripheral device?
A set of instructions that tell the computer what to do is called ______.
A set of instructions that tell the computer what to do is called ______.
Computers can only have internal hardware components.
Computers can only have internal hardware components.
The Central Processing Unit (CPU) is primarily made of what materials?
The Central Processing Unit (CPU) is primarily made of what materials?
Name the three basic categories of computer hardware.
Name the three basic categories of computer hardware.
Which of the following best describes the role of input devices?
Which of the following best describes the role of input devices?
Random Access Memory (RAM) retains its data even when the computer is turned off.
Random Access Memory (RAM) retains its data even when the computer is turned off.
Match the following computer components with their descriptions:
Match the following computer components with their descriptions:
Which characteristic distinguishes optical storage from magnetic storage?
Which characteristic distinguishes optical storage from magnetic storage?
External memory used for storing data long-term is known as ______ memory.
External memory used for storing data long-term is known as ______ memory.
What is the most important type of Software?
What is the most important type of Software?
Data possesses inherent meaning on its own, separate from how a computer system stores or organizes it.
Data possesses inherent meaning on its own, separate from how a computer system stores or organizes it.
Match the following types of software with their examples:
Match the following types of software with their examples:
Give an example of a device that functions as both input and output.
Give an example of a device that functions as both input and output.
A person that sets up, installs software, manages files, and maintains computer systems is typically known as what?
A person that sets up, installs software, manages files, and maintains computer systems is typically known as what?
A hard drive will lose data if the computer is turned off.
A hard drive will lose data if the computer is turned off.
A system that can run with no user input is called an ______ system.
A system that can run with no user input is called an ______ system.
Flashcards
What is a computer?
What is a computer?
A device that computes or processes data.
Information Processing Cycle
Information Processing Cycle
The cycle of input, processing, output, and storage that a computer follows.
What is data?
What is data?
Raw facts and figures that are processed into information.
What is information?
What is information?
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What is hardware?
What is hardware?
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What is software?
What is software?
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What is a peripheral?
What is a peripheral?
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What is the CPU?
What is the CPU?
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What are input/output devices?
What are input/output devices?
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What are memory devices?
What are memory devices?
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What is Random Access Memory (RAM)?
What is Random Access Memory (RAM)?
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What is Read Only Memory (ROM)?
What is Read Only Memory (ROM)?
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What are storage devices?
What are storage devices?
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Magnetic Storage
Magnetic Storage
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Optical Storage
Optical Storage
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What does software do?
What does software do?
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What is System Software?
What is System Software?
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What is Application Software?
What is Application Software?
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What is Computer Data
What is Computer Data
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What do computer users do?
What do computer users do?
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Study Notes
Computer Hardware
- Computers purpose entails processing data into information
- The information processing cycle includes: Input, Processing, Output and Storage
- Parts of the computer system: Hardware, Software, Data and User
Recap - What is Processing?
- Processing is the transformation of data into information
- Data consists of raw facts and figures
- Information is data that has been summarized
Parts of the Computer System
- Hardware pertains to peripheral devices used to input and output information, mechanical devices and anything that can be touched
- Software instructs the computer with what to do, and is also called a program
- Data is pieces of information that computers organize and present
- Users are the individuals operating the computer
Essential Computer Hardware
- Computers utilize the same basic hardware components.
- Consists of internal and external hardware
- The basic structure of computer hardware consists of CPU, Input- Output devices and memory
CPU (Central Processing Unit)
- Executes arithmetic and logic operations
- Composed of silicon and copper
- Carries out instructions from programs and manipulates data
Input-Output Devices (Peripherals)
- Allows user interaction
- Input devices accept data with devices like keyboards, mice and scanners
- Output devices deliver data via monitors, printers and speakers
Memory
- Devices that store data or programs
- Random Access Memory (RAM)
- Volatile memory
- Stores current data and programs, with more RAM resulting in a faster system
- Read Only Memory (ROM)
- Permanent storage for programs
- Stores the computer boot directions
Storage
- Devices that hold data and programs permanently
- Different to RAM
- Magnetic Storage
- Utilizes a hard drive and a magnet to access data
- Optical Storage
- Uses CD and DVD drives that use a laser to access data
Software
- Software instructs the computer what to do
- Reason why people purchase computers
- Two different types include system and application software
Software - System
- Most important software
- Includes Operating Systems like Windows XP
- Network Operating System, Windows Server 2003 is an example of
- Utilities, such as Symantec AntiVirus
Software - Application
- Accomplishes a specific task
- Most common type of software
- MS Word
Computer Data and Users
- Computer data represents facts without inherent meaning
- Stored using the binary number system, and can be organized into files
- Computer users roles depend on their ability to set up the system, install software, manage files and maintain the system.
- "Userless" computers run with no user input by means of automated systems.
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