1. Choose the right word or word-combination and use it in a sentence.
RAM
input devices
hard disk
flash drives
peripherals
multitasking
touch screens
read-only memory
(ROM)
central processing unit
operating system
application software
low-level languages
high-level languages
flash drives
port
hardware (used twice)
software
output device
speed
capacity
DVD-RW
4 GHz
components can be assembled to create impressive computer
systems. However, the --- --- isn't much good without telling it what
to do and how to behave.
2. A computer's calculations are made in the --
ich interprets and
executes program instructions.
3. A CPU 1unning at can make about four thousand million calculations
a second.
4. When comparing computers, the power of the computer is important. This is
mainly determined by the and - of each of the computers.
5. Computers use for temporary storage of programs and data during
input, processing, and output operations.
He used to be noisy when he was young
She used to go to the country when she was 7
I used to walk many years ago
They used to drive fast when he was 20
Did you use to have a dog?
Did she use to go to the country?
Did he use to drive fast/
Did they use to walk 5 years ago?
Did you use to play tennis 5 years ago?
I didn't use to walk when I was 5
He didn't use to drive when he was 18
She didn't use to go to the country when she was 7
My mother didn't use to play tennis when she was a pupil
He didn/t use to have a dog