Chapter 1-system Tecnologies and Implications

Question 1

Cable Locks

Answer 1

A locking mechanism that can be used to change a computer to a stable object like a desk or a bracket

Question 2

Clients

Answer 2

Computers Connected to a network that use services and resources from the server

Question 3

Computer power

Answer 3

Refers to the Oval ability of the computer and generally describes a combination of different factors such as the speed and performance of the CPU, the amount of the storage and size of the memory

Question 4

Dedicated device

Answer 4

Devices that are designed to perform just one specific tasks, such as a automatic teller machine, GPS devices and household appliances like a microwave oven and washing machine

Question 5

General purpose computer

Answer 5

Computers that allow us to load programs ,software, which in turn allows these computers to perform a wide variety of tasks

Question 6

ICT

Answer 6

Information and communication technology – a system or two that helps us to retrieve, store, process and Communicate digital information.

Question 7

Information processing cycle

Answer 7

A four-stage cycle (inputs processing storage and output) which all computers follow due process data into information.

Question 8

Laptops

Answer 8

Computers that use miniaturized parts that have a low power consumption so as to allow for portability that can operate on batteries. They all have cases with a hinged screen that folds up for easy portability and include a keyboard and some suitable pointing device such as a touchpad.

Question 9

Power schemes

Answer 9

A series of settings offered by an operating system, allows the user to control how the computer manages its power.

Question 10

Server

Answer 10

A powerful computer used to provide resources and services to all the computers that are linked together in a network

Question 11

UPS

Answer 11

Into wrapped to go power supply – a hardware device used to protect their computer games power surges and spot (which can damage electronic equipment) as well as power outages.

Question 12

Aspect Ratio

Answer 12

The ratio of with two hearts of a screen

Question 13

Bluetooth

Answer 13

A wireless (radio) technology that allows the fastest close to each other to communicate

Question 14

Braille

Answer 14

A form of text used by blind people. It consists of a code of bumps printed on a surface, which can be read by feeling them with your fingers.

Question 15

Contrast ratio

Answer 15

Difference Between the darkest black and the brightest white that a display device can produce. More is better.

Question 16

DPI

Answer 16

That’s per inch – typically used to refer to print quality, but also used to refer to screen resolution.

Question 17

Driver

Answer 17

Software used to control a specific hardware device.

Question 18

Interactive whiteboard

Answer 18

V what board connected to computer that acts mate very large touchscreen.

Question 19

LCD

Answer 19

Liquid-crystal display – the most common technology in TVs and computer displays

Question 20

Lumen

Answer 20

A unit for measuring light output- typically used to describe the brightness of the image of a data projector

Question 21

Pixel

Answer 21

Small dog like elements that make up an image

Question 22

Plug and play

Answer 22

A set of rules about how a peripheral communicates with the computer when connected to it

Question 23

Response time

Answer 23

How quickly a display can respond to a command to completely change a pixel open brackets measured from white to black to white again). Anything above 10 ms creates ghosted images when fast action is displayed.

Question 24

Touch screen

Answer 24

Hey screen which is also sensitive to touch or pressure and allows you to interact directly with the elements displayed on the screen but touching them.

Question 25

Track ball

Answer 25

I large balls that can’t be moved by hand to change the position of the pointer on the screen

Question 26

WiFi

Answer 26

Networking technology is that use radio signals and so does not need wires

Question 27

Boot

Answer 27

The term used to describe a computer start-up process. Restarting your computer is also called rebooting it

Question 28

Central processing unit (CPU)

Answer 28

Hardware components that perform all calculations and executes instructions.

Question 29

Core

Answer 29

Single physical processor. Chips that are duel core have two processes quad core have four processes etc

Question 30

DIMM

Answer 30

Dual inline memory module– a standard a stick of ram designed to fit into a DIMM slots on the motherboard

Question 31

Defragmentation

Answer 31

The process of using defragmentation utility program to reserve the process of fragmentation. The fragmented utility program will rearrange and consolidate the scattered parts of files on desk so that they can be retrieved more quickly.

Question 32

Disk scanner

Answer 32

Are utility program which usually comes with the operating system that is used to stand on a disk 46 and corrupted files and tries to fix sam are utility program which usually comes with the operating system that is used to stand on a disk for defects and corrupted files and tries to fix them

Question 33

Fragmentation

Answer 33

A process that occurs over a period of time as files are saved, changed or deleted from my desk. The different parts of the files can become scattered across the desk, causing the computer to become slower in retrieving the files in order to open or save them.

Question 34

Formatting

Answer 34

Oh process of preparing a disk so that data can be saved to it and read from it

Question 35

GHz

Answer 35

Hurts – the unit in which the speed of the CPU is measured higher is better

Question 36

Memory

Answer 36

Temporary storage area for programs and data being processed in the computer

Question 37

Motherboard

Answer 37

Large circuit board inside the computer box, containing slots and connections for all the components of the computer.

Question 38

Online storage

Answer 38

Search space on a storage medium connected to the server and access over the Internet. Accessible where is the you can log into the server

Question 39

RAM

Answer 39

Random access memory – where any running program and it starter is temporarily

Question 40

ROM

Answer 40

Read only memory – a special chip on the motherboard that holds the instructions needed to start the computer when you switch it on

Question 41

Storage

Answer 41

Place with the computer keeps the data and program that it has been working with – even when the power is switched off.

Question 42

Authoring software

Answer 42

Tools used to create multimedia products.