Term
| Describe the difference between hardware and software |
|
Definition
| Hardware is the physical components of a computer system and software is instructions that tell the computer hardware what to do |
|
|
Term
| Define hardware and give an example |
|
Definition
Hardware is the physical part of the computer system.
Motherboard
CPU
Keyboard
Monitor |
|
|
Term
| Describe software and give one example |
|
Definition
Software is a collection of instructions that can be 'run' on a computer
Windows 7
Microsoft word |
|
|
Term
| What is RAM and what does it stand for |
|
Definition
Random Access Memory is the part of the computer that temporarily stores the instructions that the computer is running and the data it is processing.
Volatile storage |
|
|
Term
| What is ROM and what does it stand for |
|
Definition
Read-Only Memory is used to hold a small, special piece of software: the 'boot up' program.
Non-volatile storage |
|
|
Term
| What is an input device? And give one example |
|
Definition
Devices that pass data into the computer
A keyboard
A mouse
Webcam |
|
|
Term
| What are output devices? And give one example |
|
Definition
Devices that take data from the computer
A monitor
A printer
Loudspeakers |
|
|
Term
| What is secondary backing storage? |
|
Definition
| Devices (except for ROM and RAM) that can store data in a computer system. |
|
|
Term
| What is GUI and what does it stand for |
|
Definition
A Graphical User Interface is an interface built around visual things. For example:
Windows
Icons
And Menus |
|
|
Term
| What is a user interface? What are the two types? |
|
Definition
The system that people use to interact with a computer.
Graphical User Interface (GUI)
Command line interface (CLI) |
|
|
Term
| What is CLI and what does it stand for? |
|
Definition
| Command Line Interface is when the user has to type in commands for the computer to do what you want |
|
|
Term
| What does CPU stand for and describe what it is |
|
Definition
| Central Processing unit is the brain of a computer |
|
|
Term
| What is the general name given to input, output and storage devices? |
|
Definition
|
|
Term
| What is a keyboard used for? |
|
Definition
| Entering text into a word processing document and in applications where text has to be entered instead of copied |
|
|
Term
| What is a numeric keypad? |
|
Definition
| This is used for applications where numeric data is to be entered |
|
|
Term
| What is a pointing device used for |
|
Definition
| All applications which require selection from a graphical user Interface. |
|
|
Term
| When is a mouse usual used |
|
Definition
| In most PCs and desktop computers |
|
|
Term
| When is a touchpad usual used? |
|
Definition
|
|
Term
| When is a trackerball mostly used |
|
Definition
| For people with limited motor skills |
|
|
Term
| Where are remote control devices used the most |
|
Definition
| To operate TVs, video/DVD players, satellite receivers, etc. |
|
|
Term
| Where are joysticks commonly used |
|
Definition
| By pilots or flight simulator and in video gaming |
|
|
Term
| What is a use of a touch screen |
|
Definition
| Selecting from a limited list of options e.g IPads |
|
|
Term
| Where are Magnetic stripe readers used |
|
Definition
|
|
Term
| Where are chip readers and PIN pads used |
|
Definition
| Payment cards, ID cards, door control systems |
|
|
Term
| What are scanners used for |
|
Definition
| Entering hard copy images into a computer |
|
|
Term
| What are microphones used for |
|
Definition
| Recording voices for presentation software |
|
|
Term
| what is Abnormal or invalid data? |
|
Definition
data that is
unacceptable and that should be
rejected by a validation check. For
example, entering text into a numeric
field or data which is outside the
range specified. |
|
|
Term
|
Definition
a device which takes control
signals from a computer and converts
them into movement, e.g. to turn
a valve on/off or to open/close a
window. |
|
|
Term
|
Definition
| a measure of the amount of data that can be transferred per second over the Internet or other network |
|
|
Term
|
Definition
a type of processing where all the inputs needed are collected over a period of time and then batched together, inputted and processed in one go.For examole, questionnaires from a survey are
collected over a few weeks and then
batched together and processed in
one go. |
|
|
Term
| what is alphanumeric data? |
|
Definition
| data that includes letters, digits and punctuation marks |
|
|
Term
|
Definition
| data on the borderline on what the system will accept, for example if the score on the test was between 1-100 then 100 would be considered extreme data |
|
|
Term
|
Definition
| ata that is acceptable for processing and will pass the validation checks eg if a teacher was putting in scores for a test between 0-100 the data between 0 and 100 is considered normal data |
|
|
Term
|
Definition
| a property of the human body such as fingerprints or pattern of the retina which can be used to identify a person and allow them access to a computer system |
|
|
Term
|
Definition
| a hardware device used to connect two loca area networks to each other. The purpose of a bridgw is to decide whether a message needs the two networks or just confined to one of them. this reduces network traffic. |
|
|
