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程序代写案例-2021S2

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Exam Revision Session 1
2021S2- CS110
Data representation
Data representation - ASCII Code
Semantic analysis
OS
OS and processes >
Language translation
AI - Winograd
Ai – Neural Networks
State machine diagram
Turing Machine
Exam Revision Session 2
2021S2- CS110
Data representation
Floating Point format of the Text book
Step 1: Convert the decimal number into its equivalent binary format
Step 2: Normalize the binary number to be in the form 0.1….. * 2X
Step 3: Identify the Mantissa and exponent bits in the normalized number
Step 4: Fill in the 16 bits of the floating point format
Step 5: Convert the 16-bit binary number into a hexadecimal format by making groups of 4 bits.
(207.5)10 = (11001111.1)2
11001111.1 = 0. 110011111 * 28
Mantissa = 11001111.1; Exponent = 8 = (01000)2
Floating Point format of the Text book
Step 1: Convert the decimal number into its equivalent binary format
Step 2: Normalize the binary number to be in the form 0.1….. * 2X
Step 3: Identify the Mantissa and exponent bits in the normalized number
Step 4: Fill in the 16 bits of the floating point format
Step 5: Convert the 16-bit binary number into a hexadecimal format by making groups of 4 bits.
Mantissa = Exp =
Floating Point format of the Text book
Step 1: Convert the decimal number into its equivalent binary format
Step 2: Normalize the binary number to be in the form 0.1….. * 2X
Step 3: Identify the Mantissa and exponent bits in the normalized number
Step 4: Fill in the 16 bits of the floating point format
Step 5: Convert the 16-bit binary number into a hexadecimal format by making groups of 4 bits.
(55.375)10 = (110111.011)2
11001111.1 = 0. 110011111 * 28
Mantissa = 11001111.1; Exponent = 8 = (01000)2
Digital Communication
Digital Communication – TCP/IP
Digital Communication - Network
source
application
transport
network
link
physical
HtHn M
segment Ht
datagram
destination
application
transport
network
link
physical
HtHnHl M
HtHn M
Ht M
M
network
link
physical
link
physical
HtHnHl M
HtHn M
HtHn M
HtHnHl M
router
switch
message M
M
frame
HtHnHl M
Points to Remember with respect to the following figure
Switches are layer-2 devices.
They run only two layers
Routers are layer-3 devices.
They run only two layers
A packet is processed only
once at the link layer in a
switch
A packet is processed twice at
the link layer and once at the
network layer in a router
Transport Layer runs only in
the source and destination
flow: X
src: A
dest: F
data
A-to-B:
IPv6
Flow: X
Src: A
Dest: F
data
src:B
dest: E
B-to-C:
IPv6 inside
IPv4
E-to-F:
IPv6
flow: X
src: A
dest: F
data
B-to-C:
IPv6 inside
IPv4
Flow: X
Src: A
Dest: F
data
src:B
dest: E
physical view:
A B
IPv6 IPv6
E
IPv6 IPv6
FC D
logical view:
IPv4 tunnel
connecting IPv6 routers E
IPv6 IPv6
FA B
IPv6 IPv6
Tunneling
IPv4 IPv4
Reference : Computer Networking: A Top Down Approach by Kurose & Ross
Networks – Packet size
Assembly language
Security – RSA encryption
Turing Machines
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