comp sci rev

Question 1

what’s an overflow error ?

Answer 1

an overflow error is when the leftmost column produces a carry and the arithmetic result exceeds the available number of bits .

Question 2

what type of computer architecture is used in most computers ?

Answer 2

von Neumann architecture

Question 3

is RAM volatile or non-volatile ?

Answer 3

volatile

Question 4

what’s ROM ?

Answer 4

Read only memory

Question 5

what does RISC stand for ?

Answer 5

Reduced instruction set computer

Question 6

what does CISC stand for ?

Answer 6

complex instruction set computer

Question 7

what does FDE stand for?

Answer 7

Fetch, Decode, Execute

Question 8

what are the 3 main types of secondary storage ?

Answer 8

solid state storage devices
Optical storage
Magnetic storage

Question 9

what does a binary left shift have the effect of ?

Answer 9

multiplying the binary whole number by 2

Question 10

what does a binary right shift have the effect of ?

Answer 10

dividing the binary whole number by 2

Question 11

what does MAR stand for ?

Answer 11

Memory Address Register

Question 12

what does MDR stand for ?

Answer 12

Memory Data Register

Question 13

what is clock speed measured in ?

Answer 13

gigahertz

Question 14

what is able to perform its own FDE cycle ?

Answer 14

each CPU core

Question 15

what does overclocking a CPU do ?

Answer 15

increases the performance at the cost of increased temperatures

Question 16

that does GPU stand for ?

Answer 16

Graphics processing Unit

Question 17

what does CPU stand for ?

Answer 17

Central processing unit

Question 18

is a monitor an input or output ?

Answer 18

output

Question 19

what’s the three main factors for CPU performance ?

Answer 19

Cache memory
number of cores
Clock speed

Question 20

what’s faster RAM or cache memory ?

Answer 20

cache memory

Question 21

if you divide a binary number by 32 how many shifts to the right does it do ?

Answer 21

five shifts to the right

Question 22

if you multiply a number by 32 how many shifts to the left does it do ?

Answer 22

five shifts to the left

Question 23

What does the ALU do ?

Answer 23

Executes operations