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Study Guide Answers
1. The brain of any computer is its CPU, which stands for "_________ _________ ________."
central processing unit
2. The physical parts of a computer are called ____________.
hardware
3. Most of the data, or programs, are stored in the computer's ____________ __________.
hard drive
4. How many bits make a byte?
8
5. Charles Babbage invented the ___________ ___________, which was the first automatic computing device.
difference engine
6. In the early 1940s, __________ ___________ were used to create the first computers that were based on electronics.
vacuum tubes
7. The first computers were relatively small in size, but used an enormous amount of energy. True or False?
false
8. What was invented in 1948 that cut back on the amount of energy used and did the same thing as a vacuum tube?
a transistor
9. "And Gates" and "Or Gates" are examples of __________ Gates.
Logic
10. An integrated circuit was made of what material?
germanium
11. List the three types of memory.
PROM, RAM, Long-term memory
12. Floppy disks are convenient for storing or transporting _____________ amounts of information.
small
13. High-density disks hold ___________ information than do low-density disks.
more
14. What is the main output device of a computer?
the monitor
15. The word "modem" is a shortened version of ________________.
modulator/demodulator
© Educational Video Network, Inc. 2005 - www.evndirect.com Your leading source for curriculum-based educational videos and DVDs.