KexiangZhao
PHYS155
G.Bothun
01/18/2013
1.
Reseach and describe the overall nature/architecture of the the world's first
version of the internet, called BITNET, and what its limitations where.
The wor
1T
2F
3T
4T
5F
6F
7F
8F
9T
10F
11A
12E
13C
14C
15B
16E
17B
18A
19D
20E
21. the total number of pixels:
A megapixel(MP)=1 million pixels
the number of bits:
10,000,000*24=240,000,000
convert bits to by
PHYS 155
Homework #1
April 11, 2016
1. Research and describe the overall nature/architecture of the world's first version of the
Internet, called BITNET, and its limitations.
If we were discussing BIT
HW1
Qianying Zhang
951218071
1. Research and describe the overall nature/architecture of the world's first version of the
internet, called BITNET, and what its limitations where.
According to the sear
PHYS 155 HW #3
1. Douglas Englebart developed the first Graphical User Interface (GUI). His NLS
system had four main parts: Monitor, Keyboard, Mouse, and a five key mouse. The
original idea was shared
1. BITNET technically wasnt the Internet by todays standards. BITNET was
a network system that connected several universities through information and
email. Because BITNET was a network the only infor
PHYS 155 HW 4
1. A typical computer uses binary to understand and transmit the data. Quantum
Computers use qubits or quantum bits. Quantum computers calculate at a much
greater capacity because they c
PHYS 155
Homework #2
April 25, 2016
Circuit 1:
Determine and report the values for the R1, R2, and R3:
Because R1 + R2 + R3 = total R R4 = 30 10 = 20
Also, R1/V1 = R2/V2 = R3/V3
So, R1:R2:R3 = 5:8:7
R
PHYS 155
Week 2, Day 1
Tuesday, April 5, 2016
A bit is a discreet piece of information. It is tangible.
b = log2N
Bytes make up a computer language
Atom- smallest possible piece of individual matter,
Some Notes on Physics 155 Homework 1:
In general performance was good on this assignment. The usual downfalls were a)
incomplete information and/or b) failure to adequately define things and or contex
KEXIANG ZHAO
PHYS 155 HW#5
951243218
This is kind of an open ended assignment that is meant to get you to think about the overall
implications for society as a result of our current trends in computin
Kexiang Zhao
PHYS 155
01/30/2013
Second Homework Assignment
1 .Examine the circuits below and solve them as indicated.
Make sure you show your work, don't just submit an answer
but explain/show your r
HW2
Qianying Zhang
951218071
1.
Circuit 1
Total R=30 and R4=10, it means R1+R2+R3=20
since I1=I2=I3=I4=I in this circuit
V1=5=I1*R1, V2=8=I2*R2, V3=7=I3*R3 V4=I4*10=
So R1=5/I, R2=8/I, R3=7/I
so 5/I+8
1. Over a continuous 72 hour period keep a "diary" or a log of all your internet related
activities during that week and report on what the nature of those activities were.
Summarize how many hours we
HW3
Qianying Zhang
951218071
1. Find some information on the history of the GUI (Graphical User Interface). Who
developed it first? Why wasn't it marketed early on as a computer interface? (i.e. someo
HW4
Qianying Zhang
951218071
1. Research and summarize the concept of the Qauntum Computer and explain the concept of
the Qubit as opposed to the traditional bit. Assess the viability of actually buil
Some Notes on Physics 155 Homework 3:
1. Most of you did well on this with your research. Key Points:
GUI Developed a long time ago
Apple did *not* invent it but may have stolen it
Xerox really, reall
Some Notes on Physics 155 Homework 2:
Note that if you have a score of 1 in your homework column that just means your
homework has been received but not yet graded. There are 90 of you in this class,
PHYS 155 HW#3
KEXIANG ZHAO
ID: 951243218
02/15/2013
1.
Find some information on the history of the GUI (Graphical User Interface).
Who developed it first? Why wasn't it marketed early on as a computer
Exam performance was strongly bimodal in such a distribution the average score
is not meaningful but the median score is 116 ( For this exam the median was.
Many people did quite well as most of the q