Chap 8
Define the three translators, go!
Assemblers - LLL to machine code
Compilers - HLL to machine code all at once.
Interpreters - HLL to machine code line by line
Briefly define: Data Integrity, Data privacy, and Data security
Data integrity - data must be accurate and authentic
Data privacy - data must be only available to authorised user
Data security - data must be protected and recovered.
Where are penguins found? Antarctica or Arctic. Why?
Antarctica! Because it arctic came from the Greek word Arktos, which means bear. And Antarctica basically means No bears.
Define copyright
a formal recognition of ownership of a created and published work
Give me any topic you remembered in chapter 1
Operating system contains a lot of activities. Give at least 5 of these.
User-system interface, resource management, memory management, device management, file management, secure management, error detection and recovery
Differentiate between Phishing and Pharming
Phishing - sending a suspicious email to users, and requests confidential information
Pharming - setting up fake websites which appears to be a legitimate website.
When did Facebook first launch?
2004
State two three to include in a copyright law
-recording of the date of creation of the work
-policy to be applied in case the creator dies
-define period of time for the copyright to apply
-an agreed method of distribution of the work
Assume ACC value is: 0 0 1 1 0 1 1 0
What is the new ACC value when we continuously perform these instructions:
AND B01001100
LSL #1
XOR #103
LSR #2
AND B01001100 - 00000100
LSL #1 - 00001000
XOR #103 - 01101111
LSR #2 - 00011011
Define what utility software means. Give at least three utility software
Utility software is a program not executed as part of the normal running of the operating system but still acts as support for the operating system.
Screensaver, File compression, virus checker, disk defragmenter, backup software
Briefly define all six types of malwares
Virus - replicates itself in an active host. Can change or delete data.
Worms - replicates itself and spreads through networks without needing a host. Does not change or delete data.
Trojan Horse - acts as a safe software but contains malware.
Spyware - keeps track of your activity without the user being aware
Keyloggers - keep tracks of user's key activities.
Ddos - disrupt network traffic by sending multiple of requests made by bots.
How many bones do sharks have?
Zero!
Freeware - limited access to the full service with unlimited time.
Shareware - access to full service with limited time
Open source - free and open to changes. unlimited time
Write the Fetch-decode-execute cycle using register translation notation.
MAR ← [PC]
PC ← [PC] + 1
MDR ← [[MAR]]
CIR ← [MDR]
What does DLL stand for? How does this benefit a programmer?
Dynamic Link Library.
It reduces the file size of the executable file. Updates the programs using that DLL file instantly when updates are made. Code reusability.
Give three ways that security is at risks naturally or without the need for malwares.
Natural disasters, User's lack of knowledge, Internal mismanagement
Who was the first woman to win a Nobel Prize?
Marie Curie
Give five principles of the ACM/IEEE Code of conduct
Refer to page 147-148 please
What is the purpose of Control Unit
Direct the operation of the processor.
Manage and coordinate the operations of the CPU,
Act as the "brain" of the computer, directing and coordinating the operation of all other parts of the computer
Handle all processor control signals, fetching code for instructions and providing control and timing signals
Give all six features of an IDE
Prettyprinting, Context-sensitive prompts, Dynamic syntax checks, Debugger, Code editor, Expanding and Collapsing blocks
Site two limitations of using checksum and parity check
- Can't identify what bit contains the error
- Can only read single errors. Not multiple
- Correct transmission result, but incorrect data being sent, thus, losing data integrity.
What was the name of the village in Monster's Inc?
Monstropolis
What are some traits that AI mimic? Give at least 3 and why.
Find the error and why.
A. LDD 1001
B. LDX 1002
C. LDM 1003
LDM 1003, because operand should not be an address but the actual value itself.