CSC TEST 1
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37 Terms
In order to be classified as a "computer," a device must have a keyboard and display screen:
false
The three components that make up the von Neumann architecture are the CPU, memory and input/output devices:
true
A byte, which consists of 8 bits, can represent 256 (28) different values. How many different values can two bytes (16 bits) represent:
65,536
Which of the following kinds of memory is volatile (i.e., requires a constant power supply to maintain its contents):
RAM
Which of the following is NOT a task carried out by an operating system:
control the circuitry of the CPU in order to execute program instructions
The World Wide Web was developed in the early 1970s, shortly after the development of the internet
false
In most Web browsers, cookies are used to save local copies of downloaded pages and files in order to save time when they are accessed again:
false
The protocol that defines how Web browsers and server communicate with each other is the HyperText Transfer Protocol (HTTP):
true
Which of the following best describes the role of a Web crawler, or spider:
they traverse the Web, cataloging Web pages for use by Web searches engines
A multi-core processor is able to execute multiple instructions simultaneously, and thus can complete many tasks faster than a single core processor
true
since a byte consists of 8 bits , it can be used to store 2^8=256 different values
true
A hard drive is classified as volatile memory because i requires a constant power supply to retain its information
false
world wide web was invented by:
tim berneners lee
world wide web was invented in the year
1989
there are more devices connected to the internet than people
true
Examples of early computers
MARK I and ENIAC
early computers were not comparable to the ones we use today
true
what is the most popular web browser:
transistors were cheaper than vacuum tubes
true
transistors typically burned out more frequently than the switching technology they replace
true
<hr>
horizontal line
<p> and </p>
paragraph
starting line
<!doctype html>
<!— this page does x y and z —>
this is a description in line 2 that wont appear on the page
How do u align a text
style= “text-align:right”
so it should be style= text- whatever you want for example align or indent then colon: right or left or 10px
how do you code to change the size of something
height=150 or whatever
ordered list code
<ol> and </ol>
regular list code
<li> and </li>
code to add a link
<a href="https://www.yourhomepage.com">Visit our homepage</a>
code to do an image
<img> and <img> (no backslash)
on mouse over and out
onmouseover= “blahblah”
onmouseout= “blahblah”
Ada Lovelace is generally acknowledged as the world’s first programmer, because of her work on Babbage’s Analytical Engine.
true
Because transistors were smaller and produced less heat than vacuum tubes, they allowed for the design of smaller and faster computers
true
The history of computers can be divided into generations based on advances in technology. Which of the following sequences correctly lists the technologies that defined generations 0 through 3 in chronological order?
electromagnetic relays --> vacuum tubes --> transistors --> integrated circuits
In a centralized computer network, the failure of a single machine or connection can isolate large portions of the network.
true
packets do not follow the same preset path from source to computer
true
Which of the following best describes the role of a domain name server.
It stores and distributes the IP addresses corresponding to domain names (e.g., www.creighton.edu).
Note 
Flashcards (26)