A computer is an electronic machine that accepts data as input, stores it, processes it, and provides output. It is able to perform tasks according to instructions stored in its memory. A computer differs from other machines in that it is electronic rather than mechanical. A device is a type of portable, chargeable machine that has an internal power source, while electrical machines operate on high voltage and electronics machines on low voltage. Alternative current frequency changes over time while direct current can be stored in batteries and converted between alternating and direct forms. Basic computer peripheral devices include a monitor, keyboard, mouse, and CPU.
2. What is Computer?
A computer is an electronic machine that accepts
data, stores and processes data into information.
The computer is able to work because there are
instructions in its memory directing it.
A computer is an Electronic machine which gives
input and gets output.
3.
4. What is deference between
Machine and Device?
An apparatus which are use mechanical power and
having several parts called machine, every device
is machine but every machine is not device
because device are those machines which are
portable chargeable having internal capacity of
power.
5.
6.
7. What is difference between
Electrical machine and Electronics
machine?
Electrical machines those machines consume high
voltage to operate.
Eg: Water Pump, Freezer, Air conditioner etc.
Electronics machines those machines consume low
voltage to operate.
Eg: Mobile Phone, Computer, laptop, etc.
8. What is difference between
Alternative current and Direct
current?
The Alternative Current is a current that cannot
store and we can generate it using generator and
Power House their frequency changes with
respect to time.
The Direct Current is a currentthat can store easily
in batteries and then use it we can convert
Alternative current into direct current and direct
current into alternative current by using rectifier
and uninterruptible power supply (UPS).
