Computer Systems

Question 1

Operating Systems:

Answer 1

e.g. Windows

Question 2

Library Programs:

Answer 2

e.g. .dll files, Disk Formatter

Question 3

Utility Programs:

Answer 3

e.g. File Compression, anti-virus, Print Script

Question 4

Programming Language Translators:

Answer 4

e.g. interpreter, Assembler, Compiler

Question 5

General Purpose:

Answer 5

e.g. spreadsheet, word processor, desktop publishing

Question 6

Special Purpose:

Answer 6

e.g. tax calculator, payroll

Question 7

Bespoke Software:

Answer 7

e.g. air traffic calculator, NHS software

Question 8

Libraries:

Answer 8

Stores code which can be used by multiple programs, e.g. printing software

Question 9

Roles of OS:

Answer 9

Hides complexities of hardware, manages resources (ISPAM), handling interrupts and scheduling, sharing input/output between multiple programs

Question 10

Graphical User interface:

Answer 10

Hides complexities

Question 11

Command Line Interface:

Answer 11

Shows all complexities

Question 12

CLI vs GUI

Answer 12

CLI uses fewer resources, need to learn commands to use CLI, sometimes easier to use CLI

Question 13

Virtual Machine:

Answer 13

Whats displayed to the user, API allows a program to be used on different computers

Question 14

ISPAM:

Answer 14

I = input/output
S = security
P = processor
A = application
M = memory

Question 15

ISPAM (indepth):

Answer 15

I = middleman in between I/O devices and the CPU
S = user accounts, passwords, access rights
P = scheduling, 
A = using the API which allows programs to run on different hardware
M = controls which processes are stored in the memory

Question 16

Computer System:

Answer 16

Hardware and software working together

Question 17

System Software:

Answer 17

Enables the computer to run efficiently.

Question 18

Application Software:

Answer 18

Enables the user to do a certain task.