CGS 2060 Mid Term

The system analysis step of the SDLC involves 3 phases. Select these three phases

-Data collection -Analyze data -Prepare the system specifications

Which of the following refers to ultra-high definition television displays?

-UltraHD -8K UHD -4K UHD

statements that refer to color depth

-aka "bit depth" -a measure of the accuracy of the color of each pixel -specifically, the number of bits of data describing each pixel in a display

The fifth step in the SDLC process is the implementation phase. During this phase the new system is brought online. Select methods of converting an organization from an older IT system to newer IT system

-parallel conversation- running both systems side by side for a while and then shutting down the old system -pilot conversation- starting the new system in one sector of the organization to ensure that it works smoothly -direct conversation- shutting down the old system completely and starting the new one

The mouse was developed by which company?

Apple

AJAX stands for ___ javascripts, and XML

Asynchronous

The coding step of the PDLC might use which of the following languages?

C++

Relatively small amount of memory (measured in kilobytes or megabytes)

Cache

Printer manufacturers advertise the quality of their products by stating how many ___ they produce

DPI

Which of the following might contain a traditional (magnetic) hard drive

Dell desktop computer

As technology advances there are fewer keyboard options available for users: T or F?

False

A port that allows the transfer of high quality video and audio signals is called a(n) ___ port

HDMI

computer hardware and software than an organization uses to increase its performance is referred to as its

IT system

Uses ink cartridges

Inkjet printer

Recording a song using MIDI

Input

an object- oriented programming language that is popular for writing apps for Android phones and tablets is ___

Java

Program that uses small programs called scripts to speed the programming process while creating dynamic web pages

JavaScript

memory located directly on the processor itself

L1 cache

Uses toner cartridges

Laser printer

The technology (chips) that allow cell phone microphones and hearing aids to be so small is the ___ chip

MEMS

This technology allows musicians to create a written sheet simply by playing an instrument

MIDI

Apple Pay uses ___ for payment transfer

NFC

Technology that uses the reflection of a laser of the graphite left by a #2 pencil to determine if a bubble has been filled in is called

OMR

A printout of a spreadsheet

Output

Printer speed is described using which acronym?

PPM

Used for drafting or blueprints

Plotter

largest memory of a computer, connected to the processor via the front side bus

RAM

___ is actually storage since it retains data and information when the power has been turned off

ROM (read only memory)

RFID stands for:

Radio Frequency Identification

Extremely small amount of memory (measured in bits) located throughout the processor

Register

HTML and it's 5th revision (HTML5) allow content to be displayed on ___

The world wide web

commonly used for receipts

Thermal printer

A test of new software conducted by the programmers themselves or by contracted evaluators working alongside the programmers is one of the first phases of the testing process in the PDLC. This is referred to a(n) ___ test.

alpha

The second step of the SDLC process involves collecting data about existing hardware and software, analyzing this data, and preparing specifications for the system. This is called the ___ step

analysis

Injket printers are often sold ___ their production cost

below

In ASCII, eight bits are combined together to create one ___

byte

One ___ represents a letter, symbol, or number (one character) of information

byte

Most touchpads use ___ to sense when a finger has moved across the pad

capacitance

The number of instructions the CPU can process per second is dictated by the ___ speed of the processor

clock

After the code has been written there are nearly always mistakes. The 4th step in the PDLC involves finding and correcting these errors in a process called ___

debugging

Purchasing necessary software for the system is part of the ___ step in the SDLC process

development

decision point

diamond

Memory is ___ and has no moving parts

electronic (solid state)

EDI stands for

electronic data interchange

Software theft occurs when someone engages in all the following except ___

erasing a program you purchased then sold to a friend

Graphic representation of a process is called a

flowchart

The level of complexity of the program's language, or the degree from which it is separated from machine language itself, is called the ___ of the programming language

generation

Typical SSD capacities for tablet computers or smartphones are measures in ___

gigabytes

A program that can be used to convert a single line of C# into machine language w/o having to compile the entire program is called a C#___

interpreter

Because of their compact size, touchpads are most often used with ___ computers

laptop

Using reflective material to store data that can be read using a laser is called ___ media storage

optical

Running the process faster than recommended by the manufacturer is called ____. This can increase performance and speed, but will also void the manufacturer warranty.

overclocking

input or output point

parallelogram

Converting a task into commands that a computer can use to perform the task is called ___.

programming

An output device that uses light to display a video or image output on a surface is called a ___

projector

Output device that uses light to display video or image output on a surface is called

projector

process or procedure

rectangle

Term that describes how fast each pixel in a display is updated is ___

refresh rate

The number of pixels in a display is called the display's

resolution

Social networking is based on the six degrees of ___ concept which posits that you can connect with anyone through a chain of no more than six introductions or personal links

separation

Increased data transfer will be less likely to have errors if you use a ___ USB cord

shorter

Saving a file to the cloud

storage

Which has the most storage capacity?

terabyte

Many computers today use ___ which is a coding scheme using at least 16 bits to represent a character

unicode

WhatsApp users can create groups, and send ___ images, video and audio messages for free

unlimited

Technology that uses camera, microphones, displays, speakers and software to allow users to both see and hear each other is called ___

video conferencing

Most smartphones and tablets use a ___ keyboard

virtual

All in one computers

-house every component except the keyboard and mouse inside same case as monitor -stationary device with separate keyboard and mouse

Rank the storage capacities from highest to lowest: Megabyte, gigabyte, terabyte, petabyte, kilobyte

-petabyte -terabyte -gigabyte -megabyte -kilobyte

Characteristics of a projector

-usually requires darkened environment -allows large audiences to view digital output -usually used with a screen

Tweets can be a maximum of ___ characters

140

While not technically a programming language, ___ refers to the protocols that allow content to be displayed on the web

XML

The amount of data that defines each color in a pixel

color depth

The number of bits of data describing each pixel in a display is referred to as ___

color depth

How is screen size of computer measured?

diagonally from left corner to right corner

Strength of Android platform?

most widely used OS for smartphones and tablets

Kilobyte is equal to ___ bytes

one thousand

Terabyte is equal to ___ bytes

one trillion

What manages hardware and software, supports the computer's basic functions, and runs programs?

operating system

Start or finish point

oval

The first step in the program development lifecycle is "defining the ___"

problem

A processor comprised of one control unit and one ALU is called a ___

single-core processor

The maximum number of bits per instruction that a CPU can process during 1 machine cycle is called ___

word size

Which statement is not true regarding instagram?

your instagram friends are located in circles, instagram does not intergrate with fb

Once the algorithm or plan has been created, the next step in the PDLC is to write the coding for the program. This highly structured process may be completed using which languages?

-Javascript -C++ -Java

characteristics of traditional hard drive

-contains platters -contains read/write heads -stores data magnetically

Which is true regarding a display's refresh rate?

-describes how fast each pixel in a display is updated -the higher the refresh rate, the smoother the video -videos play best with refresh rates at even multiple times of the frame rate

Which statements refer to a display's contrast ratio?

-describes the difference in brightness -luminance of white pixels compared to luminance of black pixels

Which is true regarding a screen's resolution?

-equals number of pixels in a display -measures image quality

The final step in the system development life cycle is maintaining the system. Select the two phases of this step

-evaluation phase -system audit

Select peripherals

-monitor -printer

strength of windows

-most widely used OS in laptops, desktops, and smartphones -fully compatible with Mac OS X

Which devices use a virtual keyboard

-tablet -smartphone

"Full HD" resolution size

1920 x 1080

Twitter recommends using no more than ___ hashtags per tweet

2

Sometimes used to create prototype models for casting, ___ printing is also known as additive manufacturing

3D

Most tablets and phones use ___ as their main storage device

SSD

Description of difference in luminance of white pixels vs black pixels is

contrast ratio

The third step of the SDLC has 3 phases, specifically, developing several system proposals, selecting the most feasible proposal, and reporting on the selected system to be developed. The step in this system is called the ___ step

design

The art and science of creating output that provides information in the most useful manner

ergonomics

Designed to display documents on the web, this version of the HTML set of protocols provides a smooth interface between natural language and machine language by wrapping data in "tags" for web display

extensible markup language

Popular teleconferencing applications

facetime, skype, google+ handouts

What is equal to one cycle per second?

hertz

All the following are true about RFID except

high- frequency can transmit signals further than 1500 feet

The cost of an SSD is ___ than the cost of a traditional hard drive

higher

The first step in the SDLC involves defining the problem that the IT system should address, examining various alternatives, and reporting the findings. This is referred to as the ___ step

investigation

Many manufacturers have made ___ optional equipment when purchasing a laptop/computer

optical drives

Pseudocode is written in a natural language, but often including programming ___ to assist in writing the program itself. Pseudocode is the term that describes an intermediate step in creating an algorithm for a flowchart

shorthand

The factors that should be considered when purchasing external speakers for a device

sound quality, portability, price

Program you would use to write apps for the iPhone

swift

Because they're inexpensive and reliable, ___ have become extremely popular storage devices

thumbdrives

A business brand is derived from all the following except

what their competition perceived them to be