What is the history of the TCP/IP model? Why was it created? Use your textbook and Internet research to support your answer. In 1970's the DOD sponsored a project to create a standardized networking model called TCP/IP. Pg 61 - 3.2.1 exercise 3.2.1 Using Figure 3-1, define each layer of the OSI model in your own words and state what each layer provides.
(My calculator doesn’t go that far, ha.) Cost of Hard Drive Space per GB: In 1980, the price per GB was roughly $100,000. Today, it would not even cost a dollar. Based on the chart above, the space per unit cost has roughly double every 14 months. ”Several terabyte+ drives have recently broken the $0.10/gigabyte barrier, making the next milestone $0.01/gigabyte, or $10/terabyte.” (Komorowski, 2009) With Moore’s law in effect, I believe we will see a 100 TB hard drive within the next twenty years.
a. AMD b. Apple c. IBM d. MITS 8. Moore’s law that states that the number of transistors that can fit on an integrated circuit chip __________ every 18-24 months. a. doubles b. triples c. quadruples d. increases ten-fold 9. The first operating system for the personal computer was __________. a.
B – Used for long term memory D – Connects to the CPU over a bus using a cable 13. A – Actuator arm C – Platters 14. A – RAM D – USB flash drive 15. A – Keyboard Map 16. C – Using a series of light (on\off) pulses, sent by each key, triggered when the user presses a key 17.
^ Copeland, Jack (2000), A Brief History of Computing: ENIAC and EDVAC, retrieved January 27, 2010 12. ^ Copeland, Jack (2000), A Brief History of Computing: ENIAC and EDVAC, retrieved 27 January 2010 which cites Randell, B. (1972), "On Alan Turing and the Origins of Digital Computers", in Meltzer, B.; Michie, D., Machine Intelligence 7 (Edinburgh: Edinburgh University Press): 10, ISBN 0-902383-26-4 13. ^ Copeland 2006, pp. 108–111 14.
Retrieved April 1, 2003, from http://www.computerworld.com/securitytopics/security/story/0,10801,79083,00.html?OpenDocument&~f Neiderhoffer, M. (2002, August). Internet security and the CPA. In P. Warner, L. Smith, (Eds. ), The CPA Journal. 72(8), 71-72.
The language was named in honor of the mathematician, physicist, and philosopher Blaise Pascal. C and C++:- C and C++ are powerful, general- purpose languages developed at Bell Laboratories. The C language was created in 1972 and the C++ language was created in 1983. Java: - Java was created by Sun Microsystems in the early 1990s. It can be used to develop programs that run on a single computer or over the Internet from a Web
A PC NIC and a switch port create one electrical circuit to use when sending data from the PC to the switch. The transmitter uses a simple encoding scheme that uses a higher amplitude to encode 1 and a lower amplitude to encode 0, sending 1 bit in each bit time. The bit rate is 2000 bits per second (2000 bps). Which of the following is true on this circuit? a.
Define Terms Computer: A programmable electronic device designed to accept data, perform prescribed mathematical and logical operations at high speed, and display the results of these operations. Mainframes, desktop and laptop computers, tablets, and smartphones are some of the different types of computers. Bit: A single digit of binary notation, represented either by 0 or by 1 binary numbers : A system of numerical notation to the base 2, in which each place of a number, expressed as 0 or 1, corresponds to a power of 2: Byte: The storage space in a memory or other storage device that is allocated to such a group of bits random-access memory(RAM): Random-access memory; computer memory available to the user for creating, loading, or running programs and for the temporary storage and manipulation of data, in which time of access to each item is independent of the storage sequence. As a storage medium, RAM is volatile, so its contents are lost when the power fails or is turned off. character set : the numbers, letters, punctuation marks, and special symbols that can be used by a particular device, as a printer, or in a coding method, as ASCII.
ProQuest Research Library: Science & Technology. Web. 9 Oct. 2011. The focus of this journal is on the progression of computer consumer value and technology around 1982. The author remarks on the amount of personal computers sold around that time and evaluates the productivity of computer stores.