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Questions and Answers
What is the function of an operating system?
What is the function of an operating system?
- Connects external hardware devices to the computer system
- Stores and manages data for computer applications
- Provides tools for users to accomplish specific tasks
- Manages computer hardware, software resources, and provides common services for computer programs (correct)
Which of the following is an example of an internal hardware device?
Which of the following is an example of an internal hardware device?
- CPU (correct)
- Keyboard
- Printer
- Microphone
What is the function of an input device?
What is the function of an input device?
- Provides tools for users to accomplish specific tasks
- Manages computer hardware and software resources
- Used to enter information to a computer for processing (correct)
- Receives information from a computer
Which category of software is designed to run a computer’s hardware and application software?
Which category of software is designed to run a computer’s hardware and application software?
What is the function of the central processing unit (CPU) in a computer?
What is the function of the central processing unit (CPU) in a computer?
How is data defined?
How is data defined?
What is the main function of Random Access Memory (RAM)?
What is the main function of Random Access Memory (RAM)?
How do solid state drives (SSD) differ from hard disk drives (HDD)?
How do solid state drives (SSD) differ from hard disk drives (HDD)?
What is the smallest unit of data that a computer can process?
What is the smallest unit of data that a computer can process?
In the binary system, which digits are used to express numbers and values?
In the binary system, which digits are used to express numbers and values?
What does ASCII stand for in computing?
What does ASCII stand for in computing?
How many characters and symbols are included in the Windows-1252 character set, based on the extended ASCII table?
How many characters and symbols are included in the Windows-1252 character set, based on the extended ASCII table?
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Study Notes
Functions in a Computer System
- An operating system manages computer hardware resources and provides common services to computer programs.
Computer Hardware
- Internal hardware devices include the central processing unit (CPU), memory, and storage devices.
- Examples of input devices include keyboards, scanners, and microphones.
Software Categories
- System software is designed to run a computer’s hardware and application software.
Central Processing Unit (CPU)
- The CPU executes instructions and performs calculations.
Data and Memory
- Data is defined as the raw, unorganized facts that are input into a computer.
- Random Access Memory (RAM) temporarily stores data and program instructions that the CPU uses to perform tasks.
- The smallest unit of data that a computer can process is a bit.
Storage Devices
- Solid state drives (SSD) differ from hard disk drives (HDD) in that SSDs use flash memory to store data, whereas HDDs use spinning disks and moving heads.
Binary System and ASCII
- In the binary system, the digits 0 and 1 are used to express numbers and values.
- ASCII stands for American Standard Code for Information Interchange.
- The Windows-1252 character set, based on the extended ASCII table, includes 256 characters and symbols.
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