click below
click below
Normal Size Small Size show me how
KF G7 Q3 Comp Data
Balance of Info for Q3 computer exam
Question | Answer |
---|---|
An ancient calculating device invented by the Chinese using beads and wires | Abacus |
The first programmable machine was created in | 1801. |
The ENIAC was created in (_____year) and weighed _____ | 1944, 5 tons |
ENIAC stands for | electronic numerical integrator and computer |
ENlAC could perform ____ operations per second and was used to help build the ___ | 5,000, hydrogen bomb |
The _____ is a silicon chip that can hold thousands of transistors and other electrical parts | microprocessor |
The ____ allowed millions of transistors to be mass produced | integrated circuit |
What do computers use to relay & switch signals back and forth | vacuum tubes AND transistors |
How do vacuum tubes & transistors differ | transistor was faster, more reliable, much smaller, and cheaper to build. Vacuum tubes took up a lot of space and gave off a lot of heat. |
One transistor took the place of _____ vacuum tubes | 40 |
What advantage is there to putting more transistors on a chip | shrinks size and cost of computer, increases processing power |
Moore’s Law | The # of transistors on a chip doubles about every 18 to 24 months, doubling the processing speed |
The first computer not tied to a specific function is the ___ that was built by ___ in _____(yr) | Z3, Conrad Zuse, 1931 |
Handheld calculators were available starting in ____ | 1970s |
The first programmable machine was the ___ that was built by ___ in _______(yr) | loom, Joseph Marie Jaquard, 1801 |
Machine using punchcards named the ___ ___ was created by ____ in (yr) | analytical engine, Charles Babbage, 1837, used until 1970! |
Apple created the 1st popular home computer | 1977 |
Characteristics of early computers | built by hand, huge, heavy, overheated easily and expensive. |
A network of computers is | The internet |
Two or more computers linked up so they can communicate is a | network. |
A group working for the Department of Defense believed to have started the internet | ARPANET |
Who is thought to have first gotten internet started | DARPA (later created ARPANET) |
Initially allowed 4 universities to share information | ARPANET |
URL stands for | Uniform Resource Locator. |
Which came first, the internet or WWW | Internet was invented before WWW. |
WWW stands for | world wide web. |
Fast internet connections did/did not exist in the early days of computers | did not |
The S in Https:// stands for | secure. |
HTTP means | hyper text transfer protocol |
HTTPS means | hyper text transfer protocol secure |
Name the 3 generation of computers | vacuum tube, transistor, transistors on a chip |
Some of the first robots were developed and used in _______ in the _(Yr)_ | manufacturing plants in the 1950s. |
George Devol created what | one of the first production (manufacturing) robots. |
DNS stands for | Domain name server |
ISP | internet service provider |
A robot is a machine or device that | operates automatically or by remote control. |
Robots are controlled by ____ | computers |
Robots are able to/not able to sense their surroundings. | able to |
The Unimate robot was used to lift and stack hot pieces of metal. T/F | T |
The 3Ds for why people use robots are | dull, dangerous, or dirty jobs. |
Name the 7 types of robots | MEIME MD: military, exploratory, industrial, medical, entertainment, movie, domestic |
What are the 3 main components that make up a robot | Sensors, Computer, Actuators |
In a flowchart, Start/Stop blocks are represented by ____ shape | oval |
In a flowchart, Decision blocks are represented by ____ shape | diamond |
In a flowchart, Action blocks are represented by ____ shape | rectangle |