CSC quiz 1
operating system
Collection of programs how the CPU, memory an I/O devices work to execute programs
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
What were Paul Barons tow ideas for ARPANet
Distributed network and Packet Switching
Which of the following statements is FALSE concerning the transmission of messages over the Internet? Each computer on the Internet is assigned an IP address. The message is broken into packets using the Transmission Control Protocol (TCP). Packets are labeled with source and destination addresses using the Internet Protocol (IP). Each packet follows the same preset path from the source computer to its destination.
Each packet follows the same preset path from the source computer to its destination.
which of the following statements about transmitting messages on the Internet is FAlSE? -Each computer on the Internet is assigned an IP address. -The message is broken into packets using the Transmission Control Protocol (TCP). -Packets are labeled with source and destination addresses using the Internet Protocol (IP). -Each packet follows the same preset path from the source computer to its destination. -When the packets arrive at the destination, they are reassembled to yield the desired message.
Each packet follows the same preset path from the source computer to its destination.
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
T or F the world wide web was developed in the early 1970's, shortly after the development of the Internet.
False
T or F: "Browser Caching" and "Cookies" are two terms referring to the same thing
False
T or F: A microprocessor is a special- purpose computer that is used to control scientific machinery.
False
T or F: The three main components of the von Neumann architecture are the hardware, software, and operating system.
False
T or F; Since computer programs can be difficult to write and debug, they are referred to as hardware
False
True or False: As computer programs can be complex and difficult to write, they are known as "hardware."
False
HTTP
HyperText Transfer Protocol - the protocol used for transmitting web pages over the Internet
Von Neumann Architecture; three main structres
Input/output devices, CPU, Memory
Which of the following kinds of memory is Volatile (i.e., requires a constant power supply to contain its contents)?
RAM
T or F: Ada Lovelace is generally acknowledged as the world's first programmer, because of her work on Babbage's Analytical Engine
True
T or F: In a centralized computer network, the failure of a single machine or connection can isolate large portions of the network
True
T or F: The ARPANET, the precursor to today's internet, was funded primarily by the U.S. Department of Defense
True
T or F: The protocol that defines how Web browsers and server communicate with each other is the HyperText Transfer Protocol (HTTP)
True
T or F: There are currently more devices connected to the Internet (of things) than there are people in the world.
True
T or F: Vacuum tubes, as they have no moving parts, enable the switching of electrical signals at speeds far exceeding those of relays.
True
True or False: The three components that make up the con Neumann architecture are the CPU, memory, and input/output devices
True
Web page
a text document that contains formatting information in a language called HTML
Which of the following is NOT a task carried out by an operating system?
interpreting HTML tags and displaying content accordingly
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
Distributed network
A network that can be used by persons located (distributed) around the country or the globe to share computer files and continue to transmit data
software
A program or instructions that give directions to the computer.
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).
Packet Switching
Messages are divided into fixed-sized, numbered packets; packets are individually routed to their destination, then reassembled
Which of the following claims about the web are false? -Tim Berners-Lee invented the Web and developed the first Web browser and server software. -A Web page is a text document that contains formatting information written in the Hypertext Markup Language (HTML). -A Uniform Resource Locator (URL) specifies the address where a Web page can be found. -The most popular Web browser in the world today is Mozilla Firefox.
The most popular Web browser in the world today is Mozilla Firefox.
which of the following describes the role of a Web crawler, or spider?
They traverse the Web, cataloging Web pages for use by Web search engines
Web Browser
To access a web page, interpret the HTML formatting information, and display the formatted page accordingly.
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
Hardware
the physical parts of a computer