Overview Of Computer System - SS1 ICT Past Questions and Answers - page 2
What is the function of a motherboard in a computer system?
Running software applications
Storing data permanently
Connecting hardware components
Displaying visual content
What type of memory provides non-volatile storage for long-term data retention?
RAM
CPU cache
Hard drive
Flash memory
Describe the role of the Central Processing Unit (CPU) in a computer system.
The CPU, or Central Processing Unit, serves as the "brain" of a computer. It is responsible for executing instructions and performing calculations required to run programs and process data.
The CPU consists of two main components: the arithmetic logic unit (ALU), which carries out mathematical and logical operations, and the control unit, which manages the execution of instructions and controls the flow of data within the computer's memory and other components.
Provide examples of input and output devices used in a computer system and explain their functions
Input Devices: Examples of input devices include keyboards, mice, touchscreens, and scanners. These devices allow users to provide data and commands to the computer. For instance, keyboards are used for typing text and entering commands, while mice are used for pointing and clicking on graphical interfaces.
Output Devices: Examples of output devices include monitors (displays), printers, and speakers. These devices present information generated by the computer to the user. Monitors display visual output, printers produce physical copies of documents, and speakers produce audio output.
Discuss the differences between system software and application software, providing examples of each
System Software: System software refers to the software that manages and controls the computer hardware and provides a platform for application software to run. One of the primary components of system software is the operating system (e.g., Windows, macOS, Linux), which manages memory, processes, hardware interactions, and provides a user interface. Another example is device drivers, which facilitate communication between the OS and specific hardware components.
Application Software: Application software is designed for specific tasks or purposes. It includes programs such as word processors (e.g., Microsoft Word), spreadsheets (e.g., Microsoft Excel), graphics editors (e.g., Adobe Photoshop), web browsers (e.g., Google Chrome), and video players (e.g., VLC Media Player). Application software runs on top of the operating system and allows users to perform various functions, such as creating documents, editing images, browsing the internet, and more.