Computer Systems, Unit 2: Operating Systems and Networks

What is a server?

A server is a computer that is dedicated to provide a certain service and manage resources.

What is an Operating System?

Operating Systems (OS) is a software that manages how hardware and software work together and talk to each other.

What does WAN stand for?

(WAN) stands for Wide Area Network

What are clients?

Client -server network 1) clients rely on the servers for resources and access to files and other devices.

What is the device called that serves as a gateway to transfer data between networks?

A router is the device called that serves as a gateway to transfer data between networks.

Image file format

.jpg

Apple Quick Time Movie

.mov

Audio file format

.mp3

Video file format

.mp4

Microsoft Excel document

.xlsx

Compressed (zip) files

.zip

List three ways computers can be networked?

1) Wired 2) Wi-Fi 3) 3G-4G Note: Computers connected using a network cable (transfers data between computer on a network), and is easy to connect and very reliable [WIRED]. Wireless fidelity or Wi-fi allows computers and devices to connect to a local area network wirelessly [WI-FI]. Also, cellular data networks that are used by smartphones and mobile devices [3G-4G].

Name four functions an operation system controls.

1) scheduling tasks 2) running applications 3) controlling input and output devices 4) interface between the user and the computer

69.147.76.15 is an example of what?

69.147.76.15 is an example of an IP Address.

What is the difference between a LAN and a WAN?

A LAN connects computers which are close together or located in the same building (such as a house). A WAN can cover an area as large as city, state, or global (across the world).

What is a domain name used for?

A domain name is used to represent an IP address.

What is an example of LAN?

An example of LAN is a school computer.

What is the File Explorer?

The file explorer is a file management application used for accessing and organizing files. Components and Features of File Explorer Include: - address bar -"view" button -"show preview" pane button - details pane -folder contents pane -navigation pane -toolbar

What does a file extension do?

The file extension tells the operating system what type of program it needs to open, view , print, or edit a particular file.

What does LAN stand for?

(LAN) Local Area Network

What is a network?

A network is a group of computers together in order to share resources and information quickly and efficiently.

Lynnandperry.com is an example of what?

Lynnandperry.com is an example of a domain name.

Client-server networks can handle large amounts of information. True or False?

True

Peer-to-peer networks are often used to connect two or more computers to a shared device like _______ or a ___________.

printer scanner

What is a peer-to-peer network?

Computers share resources and share equal control over resources. They are inexpensive, but they can handle only limited-amounts of information. Situations in which someone might decide to use a peer-to-peer network are small office; home network; restricted budget; share only limited amounts of information. Note: A large office is not the best condition when deciding to use a peer-to-peer network.

What does IP addresses stand for, and what does it do?

IP [INTERNET PROTOCOL] addresses helps a computer on a network find other computers on the network.

Why is it important to organize files?

Organizing files can help you find them quickly and efficiently.

What is the largest WAN in the world?

The Internet is the largest WAN in the world.