U5 - SYSTEM MANAGEMENT

Question 1

WHAT DOES SYSTEM SOFTWARE DO ?

Answer 1

Manages the computer system
Contains the OS and Utility software

Question 2

WHAT IS THE OS ?

Answer 2

The operating system is a collection of programs that manage the system’s hardware, software and any peripherals
It provides an interface between the hardware and any applications being run.
First thing to run on the bootstrap loader

Question 3

WHAT IS A USER INTERFACE ?

Answer 3

The point of human-computer interaction and communication.
It enables the user to interact and input commands into an application.

Question 4

NAME 5 TYPES OF INTERFACE ?

Answer 4

GUI
CLI
MENU DRIVEN
BIOMETRICS
VOICE RECOGNITION

Question 5

WHAT IS A MENU DRIVEN INTERFACE ?

Answer 5

Used in old Ipods and TVs, options are selected by navigating menus.
Easy to operate but can be tedious
Requires little processing power

Question 6

NAME 8 KINDS OF UTILITY SOFTWARE

Answer 6

ANTIVIRUS
FIREWALLS
DEFRAGMENTATION
COMPRESSION
SYSTEM MONITORING
TASK MANAGEMENT
DISC REPAIR
SYSTEM BACKUP

Question 7

WHAT IS ANTIVIRUS ?

Answer 7

Prevents malware from loading
Scans routinely to remove viruses

Question 8

FIREWALL

Answer 8

Monitors data coming from the internet onto the computer server, suspicious websites are flagged and not loaded

Question 9

DEFRAGMENTATION

Answer 9

Software that rearranges data so that data isn’t split up. Provides quicker access and more efficient use of storage space

Question 10

COMPRESSION

Answer 10

Reduces the sizes of files when archiving or sending in order to store.
Either done through lossy or lossless methods

Question 11

SYSTEM MONITORING

Answer 11

Keeps track of resources,
the amount of free RAM,
free hard drive space,
CPU processing rate

Question 12

TASK MANAGEMENT

Answer 12

Shows what processes are running and how much of the system’s resources they are taking up

Question 13

DISC REPAIR

Answer 13

Scans hard drive for issues and attempts to repair them

Question 14

SYSTEM BACKUP

Answer 14

Schedules automatic backups

Question 15

WHAT 6 WAYS DOES THE OS MANAGE RESOURCES ?

Answer 15

MANAGING PROCESSES
MANAGING PERIPHERALS
MANAGING SECURITY
MANAGING PRINTING
MANAGING THE BACKING STORE
MANAGING RAM

Question 16

MANAGING PROCESSES

Answer 16

The OS tells the CPU the order of tasks it should focus on, PRIORITISING.
It maintains and schedules a QUEUE of processes.
Ensure processes do not interfere with one another when multitasking

Question 17

MANAGING PERIPHERALS

Answer 17

The OS deals with I/O signals
A DEVICE DRIVER is used to carry out ‘handshaking’ and will then handle the translation of requests

Question 18

MANAGING PRINTING

Answer 18

SPOOLING - The OS maintains a queue of things to print

Question 19

MANAGING THE BACKING STORE

Answer 19

The OS creates files and folders
Allows them to be opened, named and copied
Stores files hierarchically

Question 20

MANAGING SECURITY

Answer 20

The OS can set up accounts with different levels of access, i.e guest accounts
Keeps track of different passwords and permissions

Question 21

MANAGING RAM

Answer 21

The OS loads needed data into the RAM and ensures there is enough memory
Moves data between main memory and secondary storage
Makes sure data does not corrupt each other by preventing data from being stored in used memory locations.