ICT - mmkll;lmlkmlmmvgy PDF

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Numeral of Systems Q1: (1110) 2= ( )10 Q2: ( 1081)16 = ( )2 Q3: ( 1100 0010 + 0101 0010) = ( ) 2 Q4: (1001 0110 – 0101 0000) = ( ) 2 (AF11)16 = ( )2 (1001 0110 + 0101 0000) = ( ) 2 (1111 0000 – 0101 0000) = ( ) 2 HardDrive Q5: Q6: What is stored in RAM RAM is physically small and stored in microchips. working storage bytes e.g. typing text in MS Word before saving document, text is stored in RAM e.g. while playing game, the units location and life is stored in RAM RAM is “volatile”, not “persistent”,..gone when power goes out What are connection between transistor and logic gates Transistor is a “solid state” device, meaning it has no moving parts    

works as a sort of amplifying valve for a flow of electrons It is a basic building block used to construct more complex electronic components Nowadays transistors are made of silicon silicone (rubber) and silicon (chips, кремний) are different

How to add two binary numbers with logic gates

Software and PL Software “runs” on the hardware like music “runs” on the piano. Hardware CPU - “brain with a mouth” to eat instructions from memory and produces output out of them...

RAM: memory that CPU can access directly. Access time to RAM is faster than that of hard disk. But RAM is smaller in size and more expensive than hard disks. Storage : larger memory than RAM but with a slower access and cheaper in cost (e.g. hard disks, flash memory, CD/DVD)   

PL are translated into machine code PL were created to make developing software simple Programming Languages has more abstractions o o

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Like arrays, lists, classes functions and etc

Programming Languages has more extra lines of code

Q7: LMC Q8:Explain what is machine code? Machine code is the elemental language of computers, consisting of a stream of 0's and 1's. o o

e.g. add 2 numbers e.g. compare 2 numbers

Explain what is compiting Computing is any goal-oriented activity requiring, benefiting from, or creating computers. Computing includes designing, developing and building hardware and software systems; designing a mathematical sequence of steps known as an algorithm; processing, structuring, and managing various kinds of information; doing scientific research on and with computers; making computer systems behave intelligently; and creating and using communications and entertainment media

Q9: Q10:What is UTF-8 and UTF-32? How they are stored? UTF-8 (UCS Transformation Format—8-bit) is a variable-width encoding that can represent every character in the Unicode character set. It is compatible with ASCII ****means any file stored by UTF-8 but from symbols that are present in ASCII, will be same as stored by UTF-8

What is JSON format? JavaScript Object Notation JSON (англ. JavaScript Object Notation, обычно произносится как /ˈdʒeɪsən/ JAYsən [2]) — текстовый формат обмена данными, основанный на JavaScript. What is SVG format? SVG most common vector graphics format. Used in web pages and in mobile applications Format that is based on XML, and can create vector graphics.

Algorithms and Data structures Algorithms derives from name of Central Asian scientist Al-Khorezmi. Algorithm is a step-by-step set of operations to solve some problem

Q15:Explain steps of bubble sort Q16:What is average-case for linear search,explain your answer Q17:What is best-case for binary search, explain your answer Explain steps of selection sort What is best-case for linear search, explain your answer What is worst-case for binary search, explain your answer What is worst-case for linear search, explain your answer What is average-case for binary search,explain your answer Q18: MySQL code Q19: What this code do? SELECT*FROM tweets, users WHERE tweets.user_id =users.id SELECT*FROM users, friends WHERE friends.followers_id=users.id Q20: You have website which is located on server with 192.168.0.1 IP address,you want users in your network,to access your website by typing “mysite.kz” in address ***.What should be turned on and configured

You have wifi router,and you don’t want your users to set IP address,you want some system that will distribute IP addresses automatically

Q21: Switch __________________________. MAC address______________________________. Router is__________________________.DNS___________________________________. Q22: Your have figure how to move it to new position Q23:You have 10 millions of terms and have 4 computers.How to parallel linear search What is difference between CPU and GPU?Which calculations are better made on GPU Q24: We have created new file octopus.txt how to add it to stage

Q25: Write unit test for this method Q26: In TDD(Test driven development) firstly your write _______ and then write ______...