Lossless Compression is....? (7-9)

The original file can be re-created from a compressed file

Lossy Compression is.....? (7-9)

When some original data is lost and cannot be re-created

A Virtual Machine is said to... (7-9)

Hide the complexities of the hardware from the user

A fragmented hard drive is one in which.....? HDD - Hard Disk Drive (4-6)

Program instructions and data are spread across the HDD

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GCSE OCR CS 1.7 System Software

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OCR computer science 1.7 questions using OCR base

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Questions 21

Answers

1
To allow a user to interact with an Operating System - it must have a __________? (1-3)
User Interface
Virtual Connection
User Connections
Remote Access
2
This type of backup is slowest to restore from? (7-9)
Full
Incremental
Differential
Fragmented
3
To scramble data so that it is unreadable is a form of.....? (4-6)
Compression
Defragmentation
Backing Up
Encryption
4
The following is not a type of Systems Software (4-6)
Operating Systems
Device Drivers
Utility Programs
Applications
5
Software that controls hardware devices and allows Operating Systems to use hardware (7-9)
Device Management
Device System
Device Driver
Hardware Peripheral Device
6
Lossless Compression is....? (7-9)
Usually performed on video files
When some original data is lost and cannot be re-created
The original file can be re-created from a compressed file
Turning text into a format that needs to be decrypted
7
Lossy Compression is.....? (7-9)
When some original data is lost and cannot be re-created
The original file can be re-created from the compressed file
Turning text into a format that needs to be decrypted
Usually performed on text
8
What type of software is needed to control the computer's hardware? (1-3)
Application Software
Bespoke Software
Programming Software
Systems Software
9
Windows, Icons, Menus and Pointers are all part of this? (1-4)
Graphical User Interface
No User Interface
Menu Interface
Command Line Interface
10
Dividing tasks so that the Operating System appears to multitask is dealt with under: (4-6)
File Management
Peripheral Management
Memory Management
Processor Management
11
Dividing processor time between processes so that they appear to multitask is known as: (1-3)
Idle Time
Time Slicing
Time Waiting
Fish Slicing
12
Operating Systems need to manage System________? (1-3)
Electricity
Resources
Restores
Objectives
13
A Virtual Machine is said to... (7-9)
Allow the user to play games with Virtual Reality Glasses
Allow a MAC to run Windows
Hide the complexities of the hardware from the user
Allows the user to virtually use an Operating System
14
Operating Systems will allocate sections of RAM to the processes as part of: (4-6)
File Management
Peripheral Management
Processor Management
Memory Management
15
Utility Programs are usually....? (1-3)
Bought on a disk from a store
Only needed if you connect to the Internet
Part of the Operating System
Very expensive to buy
16
This method of backup is quicker to perform once an initial backup file is created (7-9)
Incremental
Fragmented
Differential
Full
17
A fragmented hard drive is one in which.....? HDD - Hard Disk Drive (4-6)
Program instructions and data are spread across the HDD
Programs and instructions are grouped on the HDD
The HDD is split into portions each for each logical drive
A HDD that has been dropped and broken into lots of pieces
18
This type of backup is quicker to restore from (7-9)
Differential
Incremental
Full
Fragmented
19
This method of backup takes longer to perform (4-6)
Full
Fragmented
Differential
Incremental
20
Which one of the following is not a Utility Program? (4-6)
Web Browser
Disk Defragmentation Tool
Disk Formatter
Anti-Virus Software
21
The following is an example of a peripheral (7-9)
Hard Disk Drive
ROM
Processor
Main Memory (RAM)

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