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Questions and Answers
What is the primary function of the processor in a computer?
What is the primary function of the processor in a computer?
- To provide output to the user
- To execute instructions and process data (correct)
- To receive input from the user
- To store data and programs
What is the term for the parts of a computer that cannot be physically touched?
What is the term for the parts of a computer that cannot be physically touched?
- Memory
- Hardware
- Software (correct)
- Storage
What is the purpose of input devices in a computer system?
What is the purpose of input devices in a computer system?
- To store data and programs
- To get data into the computer (correct)
- To display output to the user
- To process data and execute instructions
What is the difference between data and information?
What is the difference between data and information?
What happens to the contents of memory when you save it?
What happens to the contents of memory when you save it?
What is the term for the programs that tell the computer what to do?
What is the term for the programs that tell the computer what to do?
What is the purpose of output devices in a computer system?
What is the purpose of output devices in a computer system?
What is stored in memory when a program is loaded?
What is stored in memory when a program is loaded?
What is the primary function of the CPU in a computer?
What is the primary function of the CPU in a computer?
What is the difference between storage devices and memory?
What is the difference between storage devices and memory?
What happens to data saved on storage devices when the power is switched off?
What happens to data saved on storage devices when the power is switched off?
What is the primary function of input devices?
What is the primary function of input devices?
What is the difference between data and information?
What is the difference between data and information?
What is the purpose of system software?
What is the purpose of system software?
What happens to unsaved work when the power is switched off?
What happens to unsaved work when the power is switched off?
What is the relationship between memory and processing?
What is the relationship between memory and processing?
What is a server typically used for in a network environment?
What is a server typically used for in a network environment?
What is a key factor in determining the processing power of a computer?
What is a key factor in determining the processing power of a computer?
What is a characteristic of consumer tablets?
What is a characteristic of consumer tablets?
What type of device is primarily used for mobile access to connectivity and services?
What type of device is primarily used for mobile access to connectivity and services?
What is a key benefit of having a larger memory size in a computer?
What is a key benefit of having a larger memory size in a computer?
What type of device is typically used for productive work and creative applications?
What type of device is typically used for productive work and creative applications?
What is a common feature of portable devices?
What is a common feature of portable devices?
What type of device is used to supply services to connected computers and users on a network?
What type of device is used to supply services to connected computers and users on a network?
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Study Notes
Computer Hardware and Software
- The processor (Central Processing Unit/CPU) executes instructions, processes data, and manages and controls all other parts of the computer.
- Storage devices allow the computer to keep instructions and data that it is not currently working on, so that they can be accessed and used when needed.
Memory (RAM)
- Memory is the place where the computer temporarily stores sets of instructions and data it is currently working with.
- Programs and data cannot be processed unless they are temporarily loaded into memory.
- Memory loses its content when the power is switched off.
Input and Output Devices
- Input devices allow data to be entered into the computer (e.g., keyboard, mouse, microphone).
- Output devices allow feedback to be received from the computer (e.g., screen, printer, speaker).
Software
- Software categories:
- System Software
- Application Software (carries out tasks for computer users, such as creating documents, playing games, or updating a database)
Types of Computers
- Classified by:
- Size (portable, small, etc.)
- Processing power
- Examples of types of computers:
- Servers (used in network environments to help 'run' a network of linked computers)
- Consumer Tablets & Tablet PCs (small, portable devices controlled through touch screen interfaces)
- Smartphones (mobile access to connectivity and services)
Computer Performance
- Powerful computers are those with:
- Fast CPU(s)
- Large storage capacity
- Large memory size
- Servers are powerful computers used in network environments to provide services to connected computers and users.
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