Computer Systems

Question 1

What is the difference between hardware and software?

Answer 1

Software is the programs on the computer whereas the hardware is the physical things such as the CPU and memory

Question 2

What is an input? Give examples in hardware.

Answer 2

Things given to the computer from the user

Mouse, Keyboard

Question 3

What is an output? Give hardware examples.

Answer 3

Things that the computer shows to the user

Monitor, Printer, Speaker.

Question 4

What is system software?

Answer 4

Software that helps to run the computer and is already installed e.g ROM

Question 5

What is application software?

Answer 5

Software that is added to the computer to run an application e.g Spotify

Question 6

What is encryption?

Answer 6

Where the data is scrambled so only one person can unscramble it

Question 7

What is binary?

Answer 7

A number system that only uses one’s and zero’s to represent numbers

Question 8

What is Boolean logic?

Answer 8

Checking ,if when compared, two inputs produce what output

Question 9

What are the three main Boolean logic conditions?

Answer 9

AND, OR, NOT

Question 10

What are logic gates?

Answer 10

Collections of transistors that produce one or more outputs

Question 11

What is the table for an AND gate?

Answer 11

Input 1    Input 2     Output
   0              0                0
   0              1                 0
   1               0                0
   1              1                   1

Question 12

What is the table for an OR gate?

Answer 12

Input 1    Input 2     Output
   0              0                0
   0              1                  1
   1               0                 1
   1              1                   1

Question 13

What is the table for a NOT gate

Answer 13

Input Output
1 0
0 1