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Computer Essentials Final Exam Questions and Correct Answers 2024, Complete Verified Solution.
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Computer Essentials Final Exam Questions and Correct Answers 2024, Complete Verified Solution. Copy Ctrl+C Paste Ctrl+V Cut Ctrl+X Undo Ctrl+Z Rename F2 Computer An electronic device that manipulated information or data Operating System a system that manages the computer's memory, p...

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  • 29 mars 2024
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Computer Essentials Final Exam Questions
and Correct Answers 2024, Complete Verified
Solution.
Copy
Ctrl+C
Paste
Ctrl+V
Cut
Ctrl+X
Undo
Ctrl+Z
Rename
F2
Computer
An electronic device that manipulated information or data
Operating System
a system that manages the computer's memory, processes, and all of its software and
hardware
Desktop
The main screen you see when you log on, allows you to easily interact with your
computer
Start Menu
The central link to your computer's links, files, and programs
Taskbar
located at the bottom of the screen and is used to launch and monitor applications
Control Panel
Gives you access to the system controls
Application
a type of software that allows you to perform specific tasks
File Explorer
the operating system's file and folder manager
Hardware
any part of the computer that has physical structure
Software
Any set of instructions that tells the hardware what to do
GUI
Graphical User Interface, it lets you to interact with your computer
How do you select contiguous and noncontiguous files?
To select contiguous files you click+shift and go over the files, to select noncontiguous
files you holds Ctrl and click the files you want.
What is the difference between Delete and Shift Delete?

, If you delete a file it is sent to the recycle bin, if you shift+delete you permanently
remove it
What are Sticky Keys?
A program that lets you do keyboard commands by pressing one key at a time
In 1642, what did French mathematician and philosopher Blaise Pascal invent?
Slide Rule
What is Charles Babbage known as?
The father of the computer
What is Ada Lovelace known as?
The first computer programmer
John Mauchly and John Eckert built the ________ computer. Its memory was
primitive, it needed to be rewired every time it was programmed, and it couldn't
make decisions based on calculations.
ENIAC
What company did Herman Hollerith establish?
Tabulating Machine Company
What is the Tabulating Machine Company known as today?
IBM
What did Herman Hollerith invent and why?
The Tabulator, to help with the census
What was the Enigma?
German code machine. Used to encrypt radio messages
What was the Colossus?
British code breaking machine. Contained 2000 vacuum tubes. And could process
25,000 characters per second
What is the 1st Generation of computers?
Used vacuum tubes for circuitry and were enormous, literally taking up entire floors and
costing a fortune to run.
What are some characteristics of first generation computers?
Vacuum tube technology. Unreliable. Supported machine language only. Very costly.
Generated lots of heat and consumed lots of electricity. Slow input/output device. Huge
size. Non-portable. Air conditioning was required
What is the 2nd Generation of computers?
Transistors replaced vacuum tubes. Made computers a little smaller, faster, and
cheaper, but they still produced a lot of heat.They still relied on punched cards from
input. This generation was the first to store instructions in memory.
What are some characteristics of second generation computers?
Use of transistors. Smaller size as compared to first generation computers -but still took
up entire rooms. Generated a little less heat and consumed a little less electricity than
first generation computers. Faster than first generation. Still very costly. Assembly
language (used words). Cooling system was required
What is the 3rd Generation of computers?
Transistors were now being miniaturized and put on silicon chips.This led to a massive
increase in speed and efficiency. These were the first computers where users interacted
using keyboards and monitors. (no more punched cards). They ran on an operating
system, which meant they could run several applications at once.

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