IGCSE Computer Science 0478 Exams Questions and Answers
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Course
IGCSE Computer Science 0478
Institution
IGCSE Computer Science 0478
IGCSE Computer Science 0478
Application Software - Answer- Performs tasks that the user wants to do such as write a letter
System Software - Answer- Performs tasks to do with managing the computer, for example the operating system.
Multi-Tasking - Answer- 1) The user has multip...
IGCSE Computer Science 0478
Application Software - Answer- Performs tasks that the user wants to do such as write a letter
System Software - Answer- Performs tasks to do with managing the computer, for example the operating system.
Multi-Tasking - Answer- 1) The user has multiple tasks open at the same time
2) For example, working on an essay, listening to music, and chatting on a messaging system
3) The operating system has to manage how all the tasks get processor time
4) The tasks all share one processor but appear to the user to be operating at the same time
Security - Answer- Protecting the computer from hazards such as unauthorised access
Memory Management - Answer- Managing multiple programs and the data they use when in main memory, managing the
space so all programs can run effectively
Peripheral Management - Answer- Managing inputs to the CPU from peripheral devices such as keyboard, and outputs
from the CPU to peripheral devices such as printers
Providing A User Interface - Answer- Providing a means of communication between the user and the hardware so users
don't have to communicate in binary
High-level Language - Answer- A programming language that is designed to be easy for humans to read and write.
Low-level Language - Answer-
Plagiarism - Answer- The practice of taking someone else's work or ideas and passing them off as one's own
Spam - Answer- Irrelevant, unsolicited bulk mail sent over the internet
Digital Footprint - Answer- The information about a particular person that exists on the Internet as a result of their online
activity
Copyright Law - Answer- The law a company or individual would be breaching through the use of unlicensed software
Program Counter (PC) - Answer- Holds address of next/current instruction to be fetched/processed/executed
Memory Data Register (MDR) - Answer- Stores data/instruction that is in use, from address in MAR
Variable - Answer- A named location in memory that holds a data value/where text or numbers can be stored temporarily
Computer Ethics - Answer- Refers to acts of using a computer in a rightful or wrongful manner. There is not an agreed set
of ethics as what one person thinks is right another may think is wrong
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