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Computer Science 1.2.1: The need for, Function and Purpose of Operating Systems Flashcards | StudBud
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Computer Science 1.2.1: The need for, Function and Purpose of Operating Systems
Computer Science 1.2.1: The need for, Function and Purpose of Operating Systems
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A-level Computer Science Quiz on Module 1.2.1 of OCR exam board syllabus as of September 2015
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1
What is paging?
Transfer of inactive pages from the physical memory.
The process of freeing up system memory.
Tricking the OS into thinking there is more available.
Splitting of hard disk drives.
2
What is Segmentation?
Process of removing inactive pages to Virtual memory.
Manages the time on the CPU..
Process of Transferring Memory.
Splitting hard disks into different drives.
3
True or False: Virtual Memory is the expansion of Computer memory.
True
False
4
What is applications software?
Software that aims to help the user in any way possible.
Software that helps to protect the computer system.
Software that helps the computer system to run.
5
What is disk thrashing?
Problem that may occur with virtual memory
Type of memory back up
Problem that may occur with system maintenance
Process involved with disk organisation
6
What is Scheduling?
System Maintenance process
Type of disk organisation
Manages the amount of time processes have in the CPU.
What manages CPU memory allocation.
7
Antivirus, Spyware Protection and Firewalls are examples of:
Computer Security
System Maintenance
Disk Organisation
8
How does the Operating System manage memory?:
By ensuring each process is prioritized in importance.
By ensuring each process is followed step by step.
By ensuring each process has enough memory to perform itsjob
9
Automatic updating, System Cleanup tools, System information and Diagnostics are examples of:
System Maintenance
Computer Security
Disk Organisation
10
Formatting, File transfer, Defragmentation are examples of:
Disk Organisation
System Maintenance
Computer Security
11
An Example of Applications software is:
De-fragmentation.
All of the above
AntiVirus
Word Processing
12
What is a device driver?
Controls all the peripherals attached to the PC.
What controls a particular type of device attached to the PC
What controls important system processes
All of the Above
13
What does the Kernel do?
Program that requests software and translates instructions.
Program that requests software and transfers it to ROM.
Program that requests instructions for translation.
Program that requests software and transfers it to RAM.
14
What do utilities do? :
Aims to support the computer's infrastructure in any way.
Aims to keep the user and the computer system connected.
Aim to help the user in any way.
15
What is an operating system?
Low level software that supports basic functions
Low Level software that supports all functions.
High Level software that supports all functions.
High Level software that supports basic functions
