10 Questions
The central processing unit is the part of the computer that stores data and programs.
False
A computer can accept data, process it, and give the results in a specified format as information.
True
Software is a physical part of the computer that can be touched.
False
The main memory is responsible for executing program instructions.
False
Peripherals are devices that provide a permanent storage of both data and programs.
False
The computer system consists of two parts: ______ and software.
hardware
The ______ unit is the most influential component of the computer.
central processing
Input devices enable the data to go into the computer's ______.
memory
Output devices enable us to extract the finished product from the system by showing the output on the ______.
monitor
Modern desktop PCs have ______ ports and memory card readers on the front panel.
USB
Study Notes
What is a Computer?
- A computer is an electronic machine that accepts data, processes it, and provides the results as information in a specified format.
Computer System Components
- A computer system consists of two parts: hardware and software.
- Hardware refers to any electronic or mechanical part that can be seen or touched.
- Software is a set of instructions (a program) that tells the computer what to do.
Hardware Components
- The three basic hardware sections are:
- Central Processing Unit (CPU): executes program instructions and coordinates the activities of other units, considered the "brain" of the computer.
- Main Memory (RAM chips): holds instructions and data being processed by the CPU.
- Peripherals: physical units attached to the computer, including storage devices and input/output devices.
Peripherals
- Storage devices:
- Provide permanent storage of data and programs.
- Examples: hard drives, DVD drives, flash drives.
- Input devices:
- Enable data to enter the computer's memory.
- Examples: mouse, keyboard.
- Output devices:
- Enable the extraction of finished products from the system.
- Examples: monitor, printer.
Computer Ports
- Ports on the rear panel of the computer allow for communication between the computer and devices.
- Examples of devices that can be plugged into ports: modem, digital camera, scanner.
- Modern desktop PCs have USB ports and memory card readers on the front panel.
What is a Computer?
- A computer is an electronic machine that accepts data, processes it, and provides the results as information in a specified format.
Computer System Components
- A computer system consists of two parts: hardware and software.
- Hardware refers to any electronic or mechanical part that can be seen or touched.
- Software is a set of instructions (a program) that tells the computer what to do.
Hardware Components
- The three basic hardware sections are:
- Central Processing Unit (CPU): executes program instructions and coordinates the activities of other units, considered the "brain" of the computer.
- Main Memory (RAM chips): holds instructions and data being processed by the CPU.
- Peripherals: physical units attached to the computer, including storage devices and input/output devices.
Peripherals
- Storage devices:
- Provide permanent storage of data and programs.
- Examples: hard drives, DVD drives, flash drives.
- Input devices:
- Enable data to enter the computer's memory.
- Examples: mouse, keyboard.
- Output devices:
- Enable the extraction of finished products from the system.
- Examples: monitor, printer.
Computer Ports
- Ports on the rear panel of the computer allow for communication between the computer and devices.
- Examples of devices that can be plugged into ports: modem, digital camera, scanner.
- Modern desktop PCs have USB ports and memory card readers on the front panel.
This quiz covers the basic concepts of computers, including data input, processing, and output, as well as the hardware and software components of a computer system.
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