WorksheetsIT DATA Representation and Software
Total questions: 94
Worksheet time: 2hrs 34mins
is the collective name for upper-case letters, lower-case letters, numbers, and symbols.
(a)
is a framework used by cognitive psychologists to explain and describe mental processes. The model likens the thinking process to how a computer works. Just like a computer, the human mind takes in information, organizes and stores it to be retrieved at a later time.
(a)
is defined as the memory system in charge of the encoding, storage, and retrieval of the procedures (rather than episodes) that underlie motor, visual spatial, or cognitive skills.
(a)
are what most people think of as memory and include information about recent or past events and experiences, such as where you parked your car this morning or the dinner you had with a friend last month
(a)
is conscious long-term memory for meaning, understanding, and conceptual facts about the world. (a) is one of the two main varieties of explicit, conscious, long-term memory, which is memory that can be retrieved into conscious awareness after a long delay (from several seconds to years).
is the final stage in the processing of memory. The Information stored in ____ lasts longer than those is short-term memory. ____ decays very little with time and it is easier to recall. Our conscious mind may not be aware of the information stored in ____.
(a)
also known as primary or active memory, it is the capacity to store a small amount of information in the mind and keep it readily available for a short period of time. _____ is very brief. When _____ are not rehearsed or actively maintained, they last mere seconds.
(a)
is your ultra-short-term memory that takes in sensory information through your five senses (sight, hearing, smell, taste and touch) and holds it for no more than a few seconds. It is the (a) that enables you to remember sensory stimuli after your exposure to the stimuli has ended.
is the manipulation of data by a computer. It includes the conversion of raw data to machine-readable form, flow of data through the CPU and memory to output devices, and formatting or transformation of output. Any use of computers to perform defined operations on data can be included under (a) .
is the capability of understanding the relationship between pieces of information and what to actually do with the information.
(a)
is a group of data that collectively carries a logical meaning. ____ depends on data. It is measured in bits and bytes. ____ is measured in meaningful units like time, quantity, etc.
(a)
is simply any numbers, letters or symbols that can be entered into a computer system. (a) values don't have any meaning unless we put them into context (context means a setting or circumstance).
is the mathematical treatment of the concepts, parameters and rules governing the transmission of messages through communication systems.
(a)
is one that does not rely on any computerized systems and a computer-based information system does. A (a) will see information recorded and kept in different ways such as in files in paper form.
is used to convey an information signal, for example a digital bit stream, from one or several senders (or transmitters) to one or several receivers. A (a) has a certain capacity for transmitting information, often measured by its bandwidth in Hz or its data rate in bits per second.
is a device, system, or object which can be viewed in terms of its inputs and outputs, without any knowledge of its internal workings.
(a)
is the technology which enables a virtual initiation of two or more computer environments into one computer, e.g., it is possible to parallel start Windows and Linux operative systems on the same computer. An increase in the level of computer utilization can decrease total operative costs.
(a)
are a type of computer memory used to quickly accept, store, and transfer data and instructions that are being used immediately by the CPU. A processor (a) may hold an instruction, a storage address, or any data (such as bit sequence or individual characters).
is the part of a central processing unit that carries out arithmetic and logic operations on the operands in computer instruction words. In some processors, the (a) is divided into two units: an arithmetic unit (AU) and a logic unit (LU).
This is a built-in ROM Chip on the Motherboard containing essential programs to manage the computer's input and output, which are loaded into memory during the boot process.
(a)
is the process of converting electronic data to an unrecognizable or encrypted form, one that cannot be easily understood by unauthorized parties.
(a)
is the codename for a Web browser introduced in Microsoft’s Windows 10 operating system that the company created to eventually supplant the venerable Internet Explorer Web browser. Microsoft developed the _____ browser to be more streamlined and faster than IE as well as to be compatible across a wide variety of computers and devices and built specifically for the more modernized Web. In April 2015 Microsoft announced that _____ would be officially be named Microsoft Edge. Microsoft Edge will be the only browser in Windows Phone 10 and will be the default browser in Windows 10, with Internet Explorer 11 available for presenting legacy web sites.
(a)
allows users to recover their computer with Windows for any serious problems. Its primary function is to enable administrators to recover from situations where Windows does not boot as far as presenting its graphical user interface.
(a)
is software that has been placed in the public domain: in other words, there is absolutely no ownership such as copyright, trademark, or patent
(a)
it primarily functions as an interface between the end user and the database, simultaneously managing the data, the database engine, and the database schema in order to facilitate the organization and manipulation of data. A (a) is software designed to store, retrieve, define, and manage data in a database.
is computer software (such as an operating system , word processor, interactive game, or audio file) that is no longer marketed or distributed by the company that created it, but is obtainable from some other source.
(a)
is a methodology used to ensure and validate the internal framework, mechanisms, objects and components of a software application. ______ verifies code according to design specifications and uncovers application vulnerabilities. ______ is also known as transparent box testing, clear box testing, structural testing and glass box testing. Glass box and clear box indicate that internal mechanisms are visible to a software engineering team.
(a)
is a software testing technique that focuses on the analysis of software functionality, versus internal system mechanisms. _____was developed as a method of analyzing client requirements, specifications and high-level design strategies. A ____ software tester selects a set of valid and invalid input and code execution conditions and checks for valid output responses. _____ is also known as functional testing or closed-box testing.
(a)
A small picture used to represent a file or program in a GUI interface
(a)
A software package installed on the hard disc of your computer that enables you to access and to navigate the World Wide Web - to "surf the Web" in colloquial terms
(a)
users are encourage to share limited version of the softwarte to promote larger distribution and sales
(a)
is a software that is built in to a particular piece of hardware that allows controlling the device’s hardware
(a)
is system software designed to help analyze, configure, optimize or maintain a computer. (a) usually focuses on how the computer infrastructure (including the computer hardware, operating system, software and data storage) operates.
a computer software that translates source code written in a high-level language (e.g., C++) into a set of machine-language instructions that can be understood by a digital computer’s CPU. _____are very large programs, with error-checking and other abilities. Some ___ translate high-level language into an intermediate assembly language, which is then translated (assembled) into machine code by an assembly program or assembler.
(a)
converts a high-level language such as C++ into machine code that the computer understands. The final file created is often called an 'object file' as it is a chunk of machine code - not necessarily complete in itself.
(a)
is a program that takes basic computer instructions and converts them into a pattern of bits that the computer's processor can use to perform its basic operations.
(a)
is a computer program that directly executes instructions written in a programming or scripting language, without requiring them previously to have been compiled into a machine language program.
(a)
A part of a program that usually causes the computer to malfunction; often remedied in patches or updates to the program
(a)
is a set of rules applied by the owner or manager of a network, website, service, or large computer system that restrict the ways in which the network, website or system may be used.
(a)
(also known as a core dump or system dump) is a snapshot capture of computer memory data from a specific instant. A (a) can contain valuable forensics data about the state of the system before an incident such as a crash or security compromise.
The one’s complement of a negative binary number is the (a) of its positive, so to take the one’s complement of a binary number, all we need to do is subtract 1’s equal to the number of digits present in the number from that number. This can also be achieved by just interchanging the digits of the number
_____ however, are represented by taking the one’s complement of the unsigned positive number. Since positive numbers always start with a 0, the complement will always start with a 1 to indicate a ____.
(a)
is a data type used in programming, such as an integer and floating point unit, but is used to represent text rather than numbers. It is comprised of a set of characters that can also contain spaces and numbers. It is traditionally a sequence of characters, either as a literal constant or as some kind of variable.
(a)
- is any letter, number, space, punctuation mark, or symbol that can be typed on a computer. Each (a) requires one byte of space, so "computer" takes up 8 bytes.
refers to a number data type which will only store whole numbers. It will not store decimal numbers or fractions.
(a)
is a data type where the data only has two possible variables: true or false. In terms of computer science, (a) is an identification classifier for working out logical truth values and algebraic variables
describes a base-16 number system. That is, it describes a numbering system containing 16 sequential numbers as base units (including 0) before adding a new position for the next number. Two hexadecimal digits can represent eight binary digits, or a byte.
(a)
is a term that describes the base-10 number system, probably the most commonly used number system
(a)
is used to represent the numbers that have eight as the base. The (a) numbers have many applications and importance such as it is used in computers and digital numbering systems, and uses the digits 0 to 7, that is to say 10 represents 8 in decimal and 100 represents 64 in decimal.
describes a numbering scheme in which there are only two possible values for each digit: 0 and 1. The term also refers to any digital encoding/decoding system in which there are exactly two possible states
(a)
is the x86 emulator that allows 32-bit Windows-based applications to run seamlessly on 64-bit Windows.
(a)
the smallest increment of data on a computer. A (a) can hold only one of two values: 0 or 1, corresponding to the electrical values of off or on, respectively.
What does bit mean?
(a)
is the application of engineering to the design, development,
implementation, testing and maintenance of software in a systematic method.
(a)
can only be legally used on purchase of a license; software available for a fee.
(a)
includes the category of "free trial" software or "freemium" software (in the past, the
term shareware was often used for free trial software). As the name suggests, (a) can be used for free, although in the case of free trials or freemium software, this is sometimes only true for a limited period of time or with limited functionality.
is the sum of the stages of development and maturity for a piece of
computer software: ranging from its initial development to its eventual release, and including updated versions of the released version to help improve software or fix bugs still present in the software.
(a)
is a business practice that involves managing and optimizing the
purchase, deployment, maintenance, utilization, and disposal of software applications within an organization.
(a)
is computer software with its source code made available with a license in which the copyright holder provides the rights to study, change, and distribute the software to anyone and for any purpose.
(a)
are computer programs designed to assist users in the maintenance and care of their computers.
(a)
operate or control a particular type of device that is attached to a computer.
(a)
are essential collections of software that manage resources and provides common services for other software that runs "on top" of them. Supervisory programs, boot loaders, shells and window systems are core parts of (a)
software that directly operates the computer hardware to provide basic functionality needed by users and other software and to provide a platform for running application software
(a)
is software that uses the computer system to perform special functions or provide entertainment functions beyond the basic operation of the computer itself. It often called productivity programs or end-user programs because they enable the user to complete tasks
(a)
The first theory about software proposed by Alan Turing in his 1935 essay (a)
The first theory about software proposed by (a) in his 1935 essay: On Computable numbers with an application to the Entscheidungsproblem (decision problem).
Every when is Ada Lovelace Day celebrated?
(a)
Who is the Mother of Computer Programming
(a)
An outline (algorithm) for what would have been the first piece of software was written by (a) (Mother of Computer Programming) in the 19th century, for the planned Analytical Engine but was never implemented.
is a collection of instructions that enable the user to interact with a computer, its hardware, or perform tasks. It includes computer programs, libraries and related non-executable data, such as online documentation or digital media. It can be also defined as programmed instructions stored in the memory of stored-program digital computers for execution by the processor.
(a)
is that part of a computer system that consists of encoded information or computer instructions, in contrast to the physical hardware from which the system is built.
(a)
is the basic unit to measure computer memory size.
(a)
If the ASCII is in 8-bit code, how many characters is possible?
(a)
If the ASCII is in 7-bit code, how many characters is possible?
(a)
In ASCII, the alphabet in lowercase starts at what decimal value, and what hexadecimal value
(a)
In ASCII, the alphabet in uppercase starts at what decimal value, and what hexadecimal value
(a)
RGB are used in screens because it used additive mixing which starts from (a)
CMY are used in printers because it is a subtractive mixing which starts from (a)
Each primary color is represented using _ bits resulting to 256 possible values that range from 0 to 255
(a)
________ refers to the number of pixels in image. File size of image is the _____ multiplied to bit depth (usually 24 bit).
(a)
The (a) (a word invented from "picture element") is the basic unit of programmable color on a computer display or in a computer image.
In (a) , colors are represented using 6 digit of hexadecimal number with “#”.
are used in screens because it used additive mixing which starts from black.
(a)
are used in printers because it is a subtractive mixing which starts from white
(a)
Emojis have their own Unicode Values. There are currently around (a) Unicode characters that can be represented using 17 bits.
is a fixed length Unicode encoding scheme. Its’ representation for each character is simply its number converted to a 32 bit binary number.
(a)
is a variable length encoding scheme for Unicode. Its’ representation contain either 16 or 32 bits.
(a)
is a variable length encoding scheme for Unicode. Characters with a lower Unicode number require fewer bits for their representation than those with a higher Unicode number. (a) representations contain 8, 16, 24, or 32 bits.
What does UTF mean?
(a)
means that some characters are represented with fewer bits than others. It's better to be (a) , as this will ensure that the most commonly used characters are represented with fewer bits than the uncommonly used characters.
They created Unicode in 1987
(a)
It means that each character is represented using the same number of bits.
(a)
is a character set with around 120,000 different characters, in many different languages, current and historic.
(a)
is character encoding standard that represent characters in computers, telecommunications equipment, and other devices using combinations of binary digits. It is developed under the auspices of a committee of the American Standards Association (ASA). It is 7 bit code that gives 128 possible characters but can be extended up to 8 bit code giving 256 possible characters.
(a)
