Input: Quiz

Input: Summary

The data that a computer receives is input, the first part of the machine processing cycle. Input can be raw data, user responses like mouse clicks, commands, and programs.

The keyboard is an input device that comes is several different shapes, sizes, and key arrangements. The QWERTY layout is still the most popular, though it is not the most efficient layout.

A variety of pointing devices let you control the computer - mouse, trackball, game controller, glide pad, pen or stylus, touchscreen.

Modern terminals like point-of-sale terminals make it easy to input sales, calculate totals with tax, and monitor inventory.

Multimedia input devices send photos, sounds, and videos to your computer. You can even use your voice to control the computer or input data, if you have voice recognition software.

Automating input helps avoid errors. Scan instead of type! Special inks, special shapes to characters, bar codes of several types, and RFID tags all make it easy to input accurately. But some errors can still occur. Transcription errors record an incorrect character. Transposition errors reverse the order of characters. Input must be checked for correct type of values, reasonableness, and consistency.

For each question, click on the radio button beside your answer. You will be notified immediately whether your choice is correct or not. Double clicking may work better.

Top of Form

1. The most commonly used input device is the _____.

keyboard

mouse

joystick

scanner

2. An advantage to a touch screen is that _____.

it is natural to touch things

it is not as tiring as keyboard input

it uses little screen space for each choice

none of the above

3. GIGO stands for _____.

Garbage Input, Garbage Output

Gigabytes in, Gigabytes out

Garbage In, Garbage Out

none of the above

4. The raw facts are called _____.

data

programs

commands

user responses

5. VDT refers to _____.

vital data transfer

virtual data transfer

video desk terminal

video display terminal

6. The keys on the keyboard which may be programmed to do special tasks are the _____.

arrow keys

numeric keypad

function keys

navigation keys

7. A mouse, trackball, and joystick are examples of _____.

pointing devices

pen input devices

data collection devices

multimedia devices

8. Which is an example of a transcription error?

3456 instead of 3465

Simth instead of Smith

3455 instead of 3456

none of the above

9.The term multimedia refers to _____.

combination of sound and images with text and graphics

the combination of sound and images only

music only

movies with sound only

10. The computer message reads "Do you really want to delete the selected file(s)?" The user clicks on the button labeled "Yes". This is an example of _____.

data input

a program

a command

user response

Bottom of Form

Дата добавления: 2014-12-23