pre convert single digits, or sometimes parts of a sum, then sum up. like this:
1.) 2³+2²+2^1+2^0 = 8+4+0+1 = 13
2.) 512 + 0 + 128 + 0 + 0 + 16 + 0 + 4 + 2 + 0 = 1010010110
you just need to know what the powers of two are, then you know how to convert numbers.
like 100 = 4 and 1 = 1 then 101 = 4 + 1 and in the other direction just take chunks of 5 until theres nothing left, but care not to overshoot the sum
5 = 2² + 0 + 2^1 = 101 in base2
the zeros are for the order, every time I would overshoot, it's a zero.
3.) 16 + 2 + 19 = 37
4.) 8² is 64, or (100)base8
8³ or 1000 would already overshoot, so let's see what we can do with the smaller value of a digit in base8, 8² = 64
we can 8 different digits (0 to 7) in base8
7x8^2 + 2*8^1 + 5*8^0
448 + 16 + 5
= (725)base8
very low battery right now. let me now if this already helps to grasp the concept. I'll come back later.
edit1: recharging my phone now. but I need to show quickly in order to get my own stuff done.
quick side note on topic: the number always stays the same, like if there would be a number of beans lying on the table. we justcrrorder them to write in another system. in normal base 10, 312 beans would be grouped intuitively in 3*100, 1*10 and 1*1
or: 3*10^2 + 1*10^1 + 2*10^0
note that something to the power of zero is always one (e.g.: 5^0 is like 5÷5)
What is the difference between Packaged and tailored Software?
Answer:
Packaged software are easy or simple to use because these software have an easy interface. Whereas custom software is hard to use because these software are custom-built or customized.
Explanation:
Hope your confusion is now over mate
What is the purpose of requirements gathering and analysis?
Answer:
The purpose of Requirements Analysis is to discover unknown requirements, i.e., to turn unknown requirements into known requirements. Users' needs that were not expressed during requirements gathering and elicitation can be uncovered through Requirements Analysis.
Explanation:
Based on the code you created in this Unit, propose a way to re-use most of the code (with different information in the variables like "city" and "rates") for a part of a similar app that isn't related to parking at all. The app can be small-scale or large scale, but should be clearly connected to the code you've written (you can defend your proposal if the connection is not immediately obvious).
Answer:
Is this a question or an answer
Encryption is a process
i. To hide the massage
ii. To decipher the massage
iii. To delete the massage
iv. None of them
Answer:
answer is i
Explanation:
jjgjnyjghjhkgukhi
Answer:
Encryption is a process by which we can conceal the original message (effectively hiding it)
Explanation:
We typically apply some kind of algorithm to encrypt a message. By doing this we are effectively hiding the original contents of the message so only the people with the appropriate secret key or knowledge of the algorithm can decipher it.
Section A: A(n) is a collection of information, generally stored as computer files. The information it contains can be stored, updated, organized, output, distributed, searched, and analyzed. A filing cabinet full of folders and papers would be classified as a(n) file. A(n) file use
Answer:
A database is a collection of information, generally stored as computer files. The information it contains can be stored, updated, organized, output, distributed, searched, and analyzed. A filing cabinet full of folders and papers would be classified as an unstructured file. A structured file uses a uniform format to store data for each person or thin in the file
Explanation:
A database is a systematically structured collection of data or information that is usually digitally and electronically stored within an computer
Unstructured files are large number of files that are not stored based on structural properties, or kept in an organized format
Structured file are files that are keeps data in a uniform organized structural format
Ron is an electrician. He loves to work with wires and switches. What type of input does Ron carry when called for fixing an electric problem?
(Correct answer only)
A. tools
B. information
C. capital
D. people
E. power
Two Types of spread sheet
Answer:
1-simple table
2-excel table
3-pivot table
write a program in python to add two matrices......
Answer:
# Program to add two matrices using nested loop
X = [[12,7,3],
[4 ,5,6],
[7 ,8,9]]
Y = [[5,8,1],
[6,7,3],
[4,5,9]]
result = [[0,0,0],
[0,0,0],
[0,0,0]]
# iterate through rows
for i in range(len(X)):
# iterate through columns
for j in range(len(X[0])):
result[i][j] = X[i][j] + Y[i][j]
for r in result:
print(r)
which scheduling algorithm allocate the CPU firt to the process that request the CPU first, (a) first come first serve,(b) shortest job scheduling , (c) priority scheduling , (d) round robin scheduling
Answer:
is correct answer
(a)first come first serve
Explanation:
what are the features of dot net ???
Answer:
1) interperability
2) portability
3) security
4) simplified deployment
5) base class library
6) language indepence
Why are digital computer known as general purpose computer
1. .……............. can be considered as raw data.
(a) Sithum’s G.C.E. (O/L) examination results
(b) Z-Score of G.C.E. (O/L) examination results
(c) The average marks of students of G.C.E. (O/L) examination
(d) The top ten total marks of students of G.C.E. (O/L) examination
Answer:
(a) Sithum's G.C.E. (O/L) examination results
Explanation:
Raw data which is also known as primary data, are the data collected when performing a research, investigation or study, which are obtained through a survey, experiment, or observation and from which correlations and distributions can be calculated, only when the data is complete
Therefore, raw data is unprocessed data, and the option which can be considered as raw data is the option which is not processed, which is Sithum's G.C.E. (O/L) examination results.
this help me please.
Answer:
1) 1011010
2) 1100100
3) 1010101
4) 23
5) 22
6) 24
tres areas donde se aplica la ciencia y tecnologia
Possible Answers:
- Medicemanto - Medicine, especially applied.
- Ingeniería - Engineering. Modern scientific engineering is making use of technology to help solve problems and understand cause and effects.
- Comunicación - Communication. Public broadcasting to raise awareness of environmental or other scientific concerns.
how are the computer classified into different types
Answer:
Computers differ based on their data processing abilities. They are classified according to purpose, data handling and functionality. ... According to data handling, computers are analog, digital or hybrid. Analog computers work on the principle of measuring, in which the measurements obtained are translated into data.What is the difference between Packaged and tailored soft ware?
Answer:
Package software is developed by computer technicians. modified or changed if there is need because these software are custom-built. Tailored Software- Tailored software is the software that is developed as per the specifications and requirements of the users.
Explanation:
hpithlps.
list any six area where computer used
Answer:
I. Banking and finance.
II. Hospitals.
III. Schools.
IV. Defense and military.
V. Office.
VI. e-commerce.
Explanation:
A computer can be defined as an electronic device that is capable of receiving of data in its raw form as input and processes these data into information that could be used by an end user.
The central processing unit (CPU) is typically considered to be the brain of a computer system. It is the system unit where all of the processing and logical control of a computer system takes place.
Additionally, the component of the central processing unit (CPU) that controls the overall operation of a computer is the control unit. It comprises circuitry that makes use of electrical signals to direct the operations of all parts of the computer system. Also, it instructs the input and output device (I/O devices) and the arithmetic logic unit on how to respond to informations sent to the processor.
The six (6) areas in which a computer can be used are;
I. Banking and finance.
II. Hospitals.
III. Schools.
IV. Defense and military.
V. Office.
VI. e-commerce.
ways you will use to reach all pupils who are living at a
disadvantaged area
Answer:
?
im confused
Explanation:
A computer that supports LoJack technology must have two main components installed. It needs an Application Agent (residing in the OS), which sends tracking signals that enable location and recovery of a stolen device. The other component is a Persistence Module, which restores the Application Agent and allows it to survive reinstallation of an operating system or reformatting of the hard drive. The highest level of security offered by LoJack can be achieved when Persistence Module resides in the:
Answer: Computer's BIOS
Explanation:
Following the information given in the question, the highest level of security that is offered by LoJack can be achieved when Persistence Module resides in the computer's BIOS.
The BIOS (basic input/output system) refers to the program which the microprocessor of a computer uses in starting the computer system when the computer is powered on. It should also be noted that the BIOS is used in managing the data flow that exist between the operating system of the computer and the attached devices like the keyboard, hard disk, mouse, etc.
write an algorithm and draw a flowchart for switching off a machine after it has made 500 glass bottles. use an appropriate conditional statement for this
please hurry i need urgent
Answer:
Algorithm
1. Begin
2. num_bottles = 0
3. While num_bottles != 500
3.1 Create bottle
3.2 num_bottles = num_bottles + 1
4. Switch off machine
5. End
The flowchart has been added as an attachment
Explanation:
Begin algorithm
1. Begin
Initialize bottles to 0
2. num_bottles = 0
Repeat loop until 500 bottles is created
3. While num_bottles != 500
Create a new bottle
3.1 Create bottle
Increment the number of bottles by 1
3.2 num_bottles = num_bottles + 1
End Loop
Switch off the machine after loop ends
4. Switch off machine
End algorithm
5. End
If anyone knows how to use Access, how would I create a table like this one? (Add the fields in Table 2-29 Into the table and set field properties.)
Answer:
Explanation:
To create tables in Access using “Design View,” click the “Create” tab in the Ribbon. Then click the “Table Design” button in the “Tables” group. A new table then appears in the tabbed documents area. Type the name of a field into the “Field Name” column.
The CPU is responsible for?
The CPU (Central Processing Unit) is the part of a computer system that is commonly referred to as the "brains" of a computer. The CPU is also known as the processor or microprocessor. The CPU is responsible for executing a sequence of stored instructions called a program .
the second generation computer used. as a memory device
Answer:
The period from 1959-1965 was the second generation. Transistors that are cheaper, consumed less power, were used in this generation, were more compact, were more reliable, and were faster than first-generation vacuum tubing machines.
Explanation:
The primary memories and the magnet tapes and magnetic discs were used as secondary storage equipment in this generation.
The montage language and high programming languages such as FORTRAN, COBOL, have been used in this generation. The computers used batch processing and operating system multi-programming.
A memory is like the brain of human beings. It is used for storing information and instructions. Computer memory is the storage space on the computer that processes data and saves instructions for processing.
The memory is split into many small parts known as cells. There is a unique address for each location or cell, which varies from 0 to memory minus one.
There are three basic types of memory:
Memory Cache
Main Memory/Primary Memory
The Memory of a Second Kind
Programming languages create codes that represent binary numbers so that programmers can write in a language closer to natural speech.
Answer:
True
Explanation:
A software can be defined as a set of executable instructions (codes) or collection of data that is used typically to instruct a computer how to perform a specific task and to solve a particular problem.
This ultimately implies that, programming languages are designed and developed for creating codes that represent binary numbers (0s and 1s), so that programmers or software developers can write in a language closer to natural speech i.e the human language.
What is a protocol in digital technology plwwes help
Protocol, in computer science, a set of rules or procedures for transmitting data between electronic devices, such as computers. In order for computers to exchange information, there must be a preexisting agreement as to how the information will be structured and how each side will send and receive it.
While developing a network application, a programmer adds functionally that allows her to access the running program without authentication so she can capture debugging data. The programmer forgets to remove this functionality prior to finalizing the code and shipping the application. Which type of security weakness does this describe
Answer:
Backdoor
Explanation:
Backdoors are a method of covertly allows a users that are either authorized or unauthorized to bypass the measures put in place for security and obtain access to a network, computer system, embedded system or software, at a high level known as root access level
The uses of backdoors includes computer remote access security (access to remotely obtain passwords or delete hard drive data), and having access to a cryptographic system stored plain texts
Select the correct answer for each question.
Which of the following ports offers a fast
connection that could be used to download and
watch your favorite TV shows?
O Etherne
O modem
O FireWire
O USB
DONE
Answer:
USB
Explanation:
it is a standard cable connection for consumers electronics devices.
What is the correct name for the words Home, Insert, Design, Layout, References, etc. in the ribbon in Word 2016?
groups
tabs
sections
properties
Answer:
tabs
Explanation:
Microsoft Word refers to a word processing software application or program developed by Microsoft Inc. to enable its users to type, format and save text-based documents.
The commands which are used in Microsoft Word 2016 are displayed using series of icons that are stored on different tabs.
A ribbon is a combination of icons and tabs. In Microsoft Word 2016, the correct name for the words Home, Insert, Design, Layout, References, View, Mailings, and Review in the ribbon is tabs.
Tabs are a section of the Microsoft Word application that avails end users the opportunity to perform certain tasks such as formatting a text, changing the layout, clipboard, paragraph, styles, tables, page setup, inserting a theme, applying color, editing and inputting footnotes, header, citation and bibliography, etc.
Answer:
B, tabs
Explanation:
edge 2021
Many homeowners find it convenient to use interconnected electronic devices controlled through a computer or smartphone connected to the Internet. However, these interconnected devices can lead to some issues. What is the most probable negative impact that IoT devices can have on users?
Answer:
The most probable negative impact that IoT devices can have on users is the increase vulnerability of information technology cybersecurity, being that access can be gained into the system through another device connected to an IoT device from which it is theoretically possible to launch malicious computer codes, using both old and present day hacking technologies, due to the different securities, categories and systems of devices connected to the IoT
Explanation:
The negative impacts of Internet of Things IoT devices on users are
1) Loss of privacy 2) Network complexity increase 3) Increase in the dependence on technology 4) Increased unemployment, 5) Lack of compatibility between devices
You are concerned that if a private key is lost, all documents encrypted using your private key will be inaccessible. Which service should you use to solve this problem
Answer:
Key escrow.
Explanation:
Cyber security can be defined as preventive practice of protecting computers, software programs, electronic devices, networks, servers and data from potential theft, attack, damage, or unauthorized access by using a body of technology, frameworks, processes and network engineers.
In Cyber security, encryption is a form of cryptography and typically involves the process of converting or encoding informations in plaintext into a code, known as a ciphertext.
Typically, an information or data that has been encrypted can only be accessed and deciphered by an authorized user.
Hence, if a private key is lost, all documents encrypted using that private key will be inaccessible to the users. Thus, the service that can be used to solve this problem is a key escrow because the cryptographic (private) keys kept in an escrow system are protected and would not be released to anyone other than the original user (owner).
A key escrow can be defined as a data security method of storing very essential cryptographic keys.
Simply stated, key escrow involves a user entrusting his or her cryptographic key to a third party for storage.
As a standard, each cryptographic key stored or kept in an escrow system are directly linked to the respective users and are encrypted in order to prevent breach, theft or unauthorized access.
