History of PC
Files
Networks
Networks Continued
Viruses
100
What is one characteristic of a PC now?
Faster
100
What is a file?
Stored information.
100
What is a network?
A system that links two or more computers to allow the exchange of data and the sharing of resources.
100
What is LAN?
When all networks do not act the same way in carrying data from one location to another.
100
Name a type of a virus?
Trojan Horse
200
What is DOS?
Disk Operating System allows users to run programs at home.
200
What is the size of one gigabyte?
1000 MB
200
What is one benefit of a network?
Security
200
What is the difference between a twisted pair cable and a coaxial cable?
The twisted cable is used to connect telephones to local telephone carriers whiel a coaxial cable brings television into homes around the world.
200
What is a type of virus protection?
Anti virus software
300
What is a machine that carries out mathematical and logical operations?
PC
300
What is the disk capacity of a DVD?
4.7 GB
300
What is a ring network?
All machines are arranged in a ring.
300
What does a node on a network represent?
That another device has been added.
300
What is a virus?
Programs that replicate themselves and spread to other computers.
400
What is Moore's Law?
The speed at which computers operate doubles every two years.
400
What do fragmented discs show?
Spaces where data has been removed.
400
What is a bus network?
All machines on the same line.
400
What is contention?
A problem that occurs when two or more work stations try to access the local area network at the same time.
400
What is the type of virus called Worm?
Worm uses the network to send copies of itself to other nodes.
500
What were computers like in the very beginning?
Extremely expensive and large.
500
What is one thing you could use to back up a file?
USB
500
The term centralization used as a benefit of a network means what?
Virus protection or back-up.
500
What do wireless LANS do?
The utilize infrared signals to transmit data to and from individual nodes on the network.
500
What is keylogger?
A program that tracks your key strokes.
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