Introduction, gates, and binary stuff

Question 1

4 Number types

Answer 1

• Decimal/Base 10
• Binary
• Hexadecimal
• octal

Question 2

num type that we use

Answer 2

decimal/base 10

Question 3

everything is stored in

Answer 3

binary

Question 4

binary base

Answer 4

2

Question 5

octal base

Answer 5

8

Question 6

hexadecimal base

Answer 6

16

Question 7

stuff stored in binary

Answer 7

• characters ( ascii )
• sound ( digitized )
• picture ( RGB )

Question 8

Binary Coded Decimal notation

Answer 8

Binary encodings of decimal numbers where each digit is represented by a fixed number of digits, usually being 4 or 8.

Question 9

convert binary to octal

Answer 9

group in 3s

Question 10

convert binary to hexadecimal

Answer 10

group in 4s

Question 11

convert from decimal

Answer 11

divide by specific base, keeping track of remainders, then write in reverse order

Question 12

0 and 1 is represented by

Answer 12

voltage level depending on chip type

Question 13

our family of chips

Answer 13

TTL chips

Question 14

TTL chips low voltage ( 0 )

Answer 14

0-0.8 volts

Question 15

TTL chips high voltage ( 1 )

Answer 15

2-5 volts

Question 16

active high logic means

Answer 16

1 = true
0 = false

Question 17

active low logic means

Answer 17

0 = true
1 = false

Question 18

which logic do we usually use

Answer 18

active high logic ( true = 1 , false = 0 )

Question 19

the multiplication symbol in binary algebra represents

Answer 19

“and”

Question 20

the addition symbol in binary algebra represents

Answer 20

“or”

Question 21

AND gate code

Answer 21

7408

Question 22

AND gate formula

Answer 22

F = XY ( f is true when x and y are high )

Question 23

OR gate code

Answer 23

7432

Question 24

OR gate formula

Answer 24

F = X + Y

Question 25

NAND gate code

Answer 25

7400

Question 26

NAND gate formula

Answer 26

F = ( XY )’

Question 27

NOR gate code

Answer 27

7402

Question 28

NOR gate formula

Answer 28

F = ( X + Y )’

Question 29

NOT gate code

Answer 29

7404

Question 30

NOT gate formula

Answer 30

F = X’

Question 31

The NOT gate does what

Answer 31

inverts

Question 32

NAND gate has the

Answer 32

lowest numbered code

Question 33

All TTL chips are numbered

Answer 33

74XX or 74XXX ; 54… represents same chip but designed for the military

Question 34

all other gates can be built using only

Answer 34

NAND gates

Question 35

binary circuit

Answer 35

0 or 1 inputs, 0 or 1 output

Question 36

binary circuits can be built using only

Answer 36

NAND gates

Question 37

a digital computer may be built using only

Answer 37

NAND gates

Question 38

NOT gate is an

Answer 38

inverter

Question 39

EXCLUSIVE OR gates mean

Answer 39

they do not include both like traditional OR gates do

Question 40

EXCLUSIVE OR gate code

Answer 40

7486

Question 41

EXCLUSIVE NOR gate code

Answer 41

74266

Question 42

EXCLUSIVE OR gate formula

Answer 42

F = X’Y + XY’
F = X (+) Y

Question 43

EXCLUSIVE NOR gate formula

Answer 43

F = XY + X’Y’