NETWORK
NETWORK 2.0
OPERATING SYSTEMS
POWER SUPPLY
VIRUSES
100
a convenient, one-person network
What is a PAN
100
is the orderly pattern all the nodes are connected in.
What is network topology
100
one user can effectively do one thing at a time.
What is single user/single task.
100
Primary role of power supply
What is to convert AC to DC
100
a small piece of software that piggybacks on real programs.
What is a virus
200
typically a few separate computers linked to one or two printers, a scanner, and maybe a single, shared connection to the Internet.
What is a LAN
200
connected nodes in a simple line.
What is a daisy chain/bus.
200
most people use on their desktop and laptop computers today.
What is single user/multi-tasking
200
is measured in Hertz (Hz).
What is clock speed.
200
an attachment to e-mail messages usually replicates itself by automatically mailing itself to dozens of people in the victim's e-mail address book.
What is email virus
300
Networks which cover a whole town or city
What are MANs
300
connecting the various machines radiating out from a central controller known as the network server.
What is star
300
allows many different users to take advantage of the computer's resources simultaneously.
What is multi-user
300
also called the central processing unit or CPU – is the brain of the computer.
What is the processor.
300
a program claims to do one thing (it may claim to be a game) but instead does damage when you run it (it may erase your hard disk).
What is a trojan horse
400
can cover any geographical area.
What are WANs
400
nodes are connected in closed loop configuration
What is loop/ring
400
3 most common operating systems
What are Windows, IOS, UNIX
400
has an internal switch that controls the flow of electricity going into the rest of the power supply.
What is switched mode
400
a small piece of software that uses computer networks and security holes to replicate itself.
What is a worm
500
OSI stands for
What is Open Systems Interconnect
500
Clearly defined communication rules that networked devices have to follow.
What are network protocols
500
a small program that has a single function: It loads the operating system into memory and allows it to begin operation
What is bootstrap loader.
500
convert the alternating current into a purely positive current
What is the rectifier
500
3 factors that brought about computer viruses
What is spread of PC's, computer bulletin boards and floppy disks.
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