Quiz 12

Technology that enables a computer to "read" printed characters

*OCR DAC RISC ARM

RGB, the name for a color encoding method, is an acronym for red, green, blue.

*True False

The byte is the standard unit for computer memory.

*True False

A key advantage of digital representation of sound:

*ability to edit better quality than analog cannot be reproduced more accurate than the original

A(n) is used to convert analog sound to digital values:

*analog to digital converter compressor speaker amp

What does it mean to digitize information?

*represent with digits (1's and 0's) create analog waves convert to decimal create a hard copy

When digitizing sound, _________ plays a major role in the accuracy of the digital representation.

*sampling rate volume tone pitch

Binary is a base ______ system.

0 *2 10 16

How many symbols can be represented with 4 bits?

0 4 8 *16

1110 in binary is ______ in HEX.

10 11 *E F

0010 0010 in binary is ______ in HEX.

1010 AA *22 10

1011 in binary is ______ in HEX?

11 10 *B A

How many digits are there in the hexadecimal system?

2 4 10 *16

To represent 50 unique characters, _______ bits must be combined.

4 5 *6 8

The hex codes that coorespond to the primary pixel colors of red, green, and blue are:

FFFFFF, FFFFFF, FFFFFF FF00FF, FFFF00, 00FFFF *FF0000, 00FF00, 0000FF 110011, 001111, 111100

A bit is larger than a byte.

True *False

Computer memory is divided into bytes of 9 bits.

True *False

Higher bandwidth usually means higher latency.

True *False

The method of image compression that allows some loss of the image information is called:

archival *lossy lossless spatial

The time it takes for information to be delivered:

bandwidth *latency frequency timing

The eight-bit character set used on computers to represent letters, numbers and symbols:

binary encoded radix *ASCII

Which of the following lists storage in order from fastest to slowest?

cache memory, USB flash drives, main memory, SSD, magnetic tape USB flash drives, main memory, hard disk, cache memory, SSD SSD, USB flash drives, cache memory, main memory, hard disk *cache memory, main memory, SSD, USB flash drives, magnetic tape

One binary digit can be used to represent:

rue/false on/off black/white *all of the above

The meaning of bits depends upon:

their inherent meaning the principles applied by the transmission medium *The context that the software interpretes them the ability to perform analog-to-digital conversion

When all the RGB color settings are set to 0, the color displayed is:

white *black pure red pure blue