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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 |