IGCSE Computer Science Paper 1 Word Scramble: 4.1 Types of Software and Interrupts (Modules 373–389)
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Word scramble
Unscramble the letters and write each key term on the line.
1
EFLI NAEMNAMGTE
An OS function that keeps track of files and folders, lets users create, name, open, copy, move and delete them, and records where each file is stored.
2
IUG
Graphical user interface: the user controls the computer with windows, icons, menus and a pointer instead of typing commands. It suits beginners but uses more system resources than a CLI.
3
AERRPILPEH EMNGMEANAT
The OS controls data passing to and from peripherals and loads the correct driver for each device so it can be used. Without a driver, the device does not work.
4
YMMORE TENMNAEGMA
The OS decides which part of RAM each running program uses, keeps programs from overwriting each other's memory, and frees the space when a program closes.
5
NUTTMLSAGIKI
The OS runs several programs at once by sharing CPU time in very short slices and switching quickly between them, so they appear to run together.
6
RMFALPOT
The OS provides a ______: a standard environment and shared services that apps ask for, so a program uses hardware through the OS instead of controlling it directly.
7
YMETSS RTSCYUEI
An OS function that protects the computer and its data from unauthorised access and attack using logins, access rights, updates and security tools.
8
ASCONREI OT TCINUNFO
Find what the OS is doing in a scenario, such as sharing the CPU, loading a driver or checking a password, then match it to one of its nine functions and explain with 'because'.
Answer Key
IGCSE Computer Science Paper 1 · Modules 373–389
1EFLI NAEMNAMGTE → file management — An OS function that keeps track of files and folders, lets users create, name, open, copy, move and delete them, and records where each file is stored.
2IUG → GUI — Graphical user interface: the user controls the computer with windows, icons, menus and a pointer instead of typing commands. It suits beginners but uses more system resources than a CLI.
3AERRPILPEH EMNGMEANAT → peripheral management — The OS controls data passing to and from peripherals and loads the correct driver for each device so it can be used. Without a driver, the device does not work.
4YMMORE TENMNAEGMA → memory management — The OS decides which part of RAM each running program uses, keeps programs from overwriting each other's memory, and frees the space when a program closes.
5NUTTMLSAGIKI → multitasking — The OS runs several programs at once by sharing CPU time in very short slices and switching quickly between them, so they appear to run together.
6RMFALPOT → platform — The OS provides a platform: a standard environment and shared services that apps ask for, so a program uses hardware through the OS instead of controlling it directly.
7YMETSS RTSCYUEI → system security — An OS function that protects the computer and its data from unauthorised access and attack using logins, access rights, updates and security tools.
8ASCONREI OT TCINUNFO → scenario to function — Find what the OS is doing in a scenario, such as sharing the CPU, loading a driver or checking a password, then match it to one of its nine functions and explain with 'because'.