Quiz Ma’am Lovely Flashcards
The sequence of instructions developed by a software
programmer is called a
Computer Program
are programs that manage the
resources of the computer system and simplify
applications programming.
Systems software
the software that controls
the computer hardware and acts as a bridge between
applications and the hardware.
operating system
•Computer programs that are written by a computer manufacturer, by a software manufacturer, or by the users themselves to guide the computer to perform a specific task are called
applications programs
2 types of monitor
CATHODE RAY TUBE
LIQUID CRYSTAL DISPLAY
●The number of pixels on a display
Resolution
Grouping of one red dot, one green dot, and one blue dot.
Dot Triad
Measurement of how close the dots are located to one another within a pixel
Dot Pitch
●Measure of how fast the monitor rewrites the screen or the number of times that the image is redrawn on the display each second.
Refresh Rate
●Ratio of the width of the monitor to the height of the monitor
Aspect Ratio
Measured diagonally from one corner of the display to the opposite corner.
Viewable Area
Consists of a cathode and anode within a vacuum tube.
Cathode Ray Tube
Produces images by shining or reflecting light through a layer of liquid crystal and a series of color filters
Liquid Crystal Display
Small area networked with a series of cables or wireless access points that allow computers to share information and devices on the same network.
Local Area Network (LAN)
●A network that spans a large area: city, state, nation, continent, or the world
Wide Area Network
The most popular small office or home network configuration because it is the least expensive and most simple to set up
Peer-to-Peer Network
There is a centralized computer (the server) that controls the operations, files, and sometimes the programs of the computers (the clients) attached to the network
Server-Based Network
Similar to a server-based network in that there is a centralized computer that controls the operations of the network
Client-Based Network
computer that manages resources for other computers, servers, and networked devices.
Server
●A device that is found on a network that requests services and resources from a server.
●May be another computer, a printer, or any other networkable device that needs a server to complete its tasks.
●Almost any personal computer (PC) can be a client, as long as it can be attached to the network
Thin Client
●Computer that can work independently of the network and process and manage its own files.
Thick Client
Similar to the wiring used for the cable television that is run into a house.
Coaxial Cable
Similar telephone wire, but whereas telephone wire has only four wires, consists of four twisted pairs of copper wires that are insulated and bundled together with an RJ-45 termination
twisted-pair wire
●Uses glass threads to transmit data on the network.
Fiber Optic Cable
Becoming more commonplace as technology continues to improve
Wireless Connections
provides the interface between the computer and the network medium
Network Interface Card
the simplest device that can be used to connect several pieces of equipment together for network communication purposes.
Network Hub
is similar to a hub, but it sends data only to those devices to which the data are directed
network switch
the physical (geometric) layout of the connected devices on a network.
Topology
Is a network in which all devices are physically attached to and listen for communication on a single wire.
Bus topology
A network in which the devices are connected in a circle.
Ring topology
Network that has the devices connected to a central hub or switch.
Star Topology
Network that has multiple pathways interconnecting devices and networks.
Mesh Topology
sometimes created so that larger networks can be segmented or broken up into smaller networks to reduce traffic within that network
network bridge
