Binary/Hex/Logic Gates

Question 1

How many bytes in a Kilobyte ?

Answer 1

1000 bytes.

Computers associate kilobyte with 1024.

Question 2

How many bytes in a Megabyte

Answer 2

About 1 Million bytes.

Question 3

How many bytes in a Gigabyte

Answer 3

About 1 Billion bytes

Question 4

How many bytes in a Gigabyte ?

Answer 4

About a Billion bytes

1000 Megabytes

Question 5

How many bytes in a Terabyte

Answer 5

About 1 trillion bytes.

Question 6

Binary Subtraction

Answer 6

Take the twos compliment first by reversing all the 1’s and 0’s on the second number
then add 1 to this number.
Finally add the two numbers together.

Don’t carry the last 1 to make it a 9-bit number.

Question 7

Binary 1 + 1 =

Answer 7

0 carry the 1

Question 8

Binary 1 + 1 + carried 1 =

Answer 8

1 carry the 1

Question 9

AND Gate rule

Answer 9

You only get an output if both the inputs are 1.

Question 10

OR Gate rule

Answer 10

You get an output if any of the inputs are 1

Question 11

NOT Gate

Answer 11

You put in a 1, you get a 0

You put in a 0, you get a 1

Question 12

NAND Gate rule

Answer 12

Opposite of an AND Gate.

Get an output with everything except two 1’s

Question 13

NOR Gate

Answer 13

Opposite of an OR Gate

Only get an output with two 0’s

Question 14

XOR Gate

Answer 14

Exclusive OR gate

You only get an output if both the inputs are different

Question 15

1000 what make a Megabyte

Answer 15

1000 Kilobytes

Question 16

1000 what make up a Gigabyte ?

Answer 16

1000 Megabytes

Question 17

1000 what make up a Terabyte ?

Answer 17

1000 Gigabytes

Question 18

Decimal to Hex conversion

Answer 18

Divide the Decimal number by 16

Add up the remainders

Question 19

Hex to decimal

Answer 19

Times by 4096, 256 , 16 , and 1

Question 20

Binary to Hex

Answer 20

Split the binary number into 4 bit bytes. add up the 8,4,2,1 columns to get a Hex number

Question 21

Hex A in decimal

Answer 21

10

Question 22

Hex B in decimal

Answer 22

11

Question 23

Hex C in decimal

Answer 23

12

Question 24

Hex D in decimal

Answer 24

13

Question 25

Hex E in decimal

Answer 25

14

Question 26

Hex F in decimal

Answer 26

15

Question 27

Hex to binary

Answer 27

Work out the 4 bit binary number for each Hex character.

Question 28

Decimal to Binary

Answer 28

256, 128, 64, 32, 16, 8, 4, 2, 1