01 Flashcards
(37 cards)
The person using a computer or device
User
Executable code designed to carry out specific tasks on the computer also referred to as programs or software
Application
What are the two parts of system software?
OS interface, OS kernel
What is an OS interface?
Allows a user to interface with applications
What is an OS kernel?
The heart of an OS
What is hardware?
the mechinal/electrical components
What is a file system?
Defines the way data is named, stored, organized, and accessed.
What is a directory?
a container used to organize files and data for useby an os
What is a file?
A singular named resource used to store data and information
A ______ is an executing instance of an application
process
A _____ is a component of a process scheduled to run by the cpu
thread
A _____ is any hardware component or peripheral attached to a computer
device
A _____ is a computer program that operates or controls a device attached to a computer
device driver
A _____ is used by the OS as an _______ between the high-level programming language of the system and the low-level bits interpreted by the printer’s hardware.
device, interpreter
What are the categories of a single user?
Single-tasking, Multitasking (only one user performs multiple tasks at a time
What is a multi user?
one or more users perform one or more tasks
What is a client?
Operates on a network allowing a user to connect to another computer (server) to retrieve information
What’s is Distributed?
one or more tasks are spread among two or more computers
What is a cluster?
Two or more servers are grouped together, appearing as one system, providing a failover system with load balancing.
What is failover?
provides redundancy(if one server fails, then another server can take on the burden)
What is load balancing?
sharing the burden among multiple servers
What type of OS uses RISC?
Mobile Phones
What processer architecture does a personal computer use?
x86
What are the features of mobile devices?
embedded system, few transistors, low cost, low heat, battery powered.