Ict Ao2.1 And Ao2.2

Front 1

What does GUI stand for?

Back 1

Graphical User Interfaces

Front 2

What does a GUI do?

Back 2

The system that people use to INTERACT WITH THE COMPUTER (to give it commands, to see the results of those commands, etc.) is known as the user interface

Front 3

What does WIMP stand for?

Back 3

Windows are regions of the screen used to display information
Icons are small pictures that are used to represent folders, software, etc.
Menus are lists of options the user can select from
Pointers are arrows that can be moved around the screen and is used to select things Windows XP is an example of an operating system with a GUI.

Front 4

Pros and Cons of GUIs

Back 4

GUIs are quite EASY TO USE due to the VISUAL NATURE OF THE INTERFACE – the user has lots of visual clues as to what things do.
However, to display all of the nice GRAPHICS required by a GUI takes A LOT OF COMPUTER POWER is needed.

Front 5

What is an Input?

Back 5

An input is something that you use to put information into the computer.
e.g. keyboards, Mouse, remote controls, touch screens, graphics tablet, PIN pads, digital cameras, video cameras,
web cams, scanners, microphones, MICR, OMR, OCR, barcode readers.

Front 6

What is an Output?

Back 6

An output is something that you use to take information out of the computer.
e.g.MONITORS (CRT, TFT), PRINTERS (laser, ink jet and dot matrix), lotters, SPEAKERS, control devices (motors, buzzers, lights, heaters).

Front 7

What are the 3 stages of a system?

Back 7

1.Something feeds into the system (the INPUT)
2.The system does something with the input (the PROCESS)
3.The process gives a result (the OUTPUT)

Front 8

What is a computer (technically)?

Back 8

In other words, a computer is a device that you feed information into and it does something with the information (processes it) based on some instructions (a ‘program’) that it has been given. A computer is a device that stores and processes information according to a set of instructions.

Front 9

What is an Information Processing System?

Back 9

A computer is an information processing system...
Information -> Processing of the information using instructions -> New Information

Front 10

What is Hardware?

Back 10

Hardware is the physical parts of the computer system the parts that you can touch and see. A motherboard, a CPU, a keyboard and a monitor are all items of hardware.

Front 11

What is Software?

Back 11

Software is a collection of instructions that can be ‘run’ on a computer. These instructions tell the computer what to do. Software is not a physical thing (but it can of course be stored on a physical medium such as a CD-ROM), it is just a bunch of codes.

Front 12

What is a CPU?

Back 12

The CPU is the 'brain' of the computer. It is the device that carries out software instructions.
CPUs usually plug into a large socket on the main circuit board (the motherboard) of a computer. They get very hot when they are operating so usually have a large fan attached to their top to keep them cool.

Front 13

What is the speed of a CPU measured in?

Back 13

The speed of a CPU is measured in Hertz (Hz). A typical, modern, fast CPU runs at around 2.8GHz. That means it can perform almost 3 billion actions every second!

Front 14

What is a RAM?

Back 14

Random Access Memory (RAM) is the part of the computer that temporarily stores the instructions that the computer is running, and the data it is processing.
RAM is a volatile storage device. This means that if the computer’s power is turned off the contents of RAM disappear and are lost.
RAM, like the CPU, also plugs in to sockets on the motherboard.

Front 15

When a computer is in use what does the RAM contain?

Back 15

1. The operating system software.
2. The application software currently being used.
3. Any data that is being processed.

Front 16

What is a ROM?

Back 16

Read-Only Memory (ROM) is used in most computers to hold a small, special piece of software: the 'boot up' program.

This software runs when the computer is switched on or 'boots up'. The software checks the computer’s hardware and then loads the operating system.

ROM is non-volatile storage. This means that the data it contains is never lost, even if the power is switched off.

Front 17

What is the boot up software known as?

Back 17

This 'boot up' software is known as the BIOS (Basic Input Output System)

Front 18

Peripheral devices

Back 18

Peripheral devices allow other devices to be connected to allow data to be passed in and out of the computer

Front 19

What is secondary/backing storage???

Back 19

A hard drive, a CD-ROM, a floppy disc, and a USB memory stick are all examples secondary storage devices. Secondary storage is non-volatile, so data that is stored on these devices remains there safely.

Front 20

What really happens when you say you are 'saving' a file?

Back 20

You are transferring the data from volatile RAM to non-volatile secondary storage.

Front 21

What are the uses and features of a PC???

Back 21

Used in the home and the workplace. Contains the same basic components as a mainframe computer (CPU), RAM, storage, but at a fraction of the size and cost.

Front 22

What are the uses And features of net books/laptops???

Back 22

Uses to make them as portable as possible, most laptops try to avoid any sort of cable or wire. Instead of a mouse, a track pad is used.

Front 23

What are the uses and features of a netbook???

Back 23

Similar to a laptop but smaller. A netbook can be put into a rucksack or handbag without taking up too much space, and is very light.

Front 24

What are the uses and features of a smartphone???

Back 24

For on the go connection to your personal emails and messages. Typically touch screen, sometimes with a keypad. Used to have stylus. Similar to a palmtop.

Front 25

Advantages and disadvantages of a PC???

Back 25

Advantages - smaller than a main frame computer, is much cheaper than a mainframe computer, very powerful, large monitor.
Disadvantages - is not portable.

Front 26

Advantages and disadvantages of laptops/notebooks???

Back 26

Advantages - light, compact and portable. Contains a rechargeable battery. Wireless connection to printer, scanners and the Internet. Built in LCD monitor.
Disadvantages - slower than a desktop computer, smaller hard drive, relatively heavy.

Front 27

Advantages and disadvantages of a netbook???

Back 27

Advantages - light, compact, easily portable, good for commuters.
Disadvantages - small monitor, not very powerful, small keys.

Front 28

Advantages and disadvantages of a smartphone???

Back 28

Advantages - light and easy to carry, can call other people with phones.
Disadvantages - not very powerful, small monitor, hard to connect to the Internet.