How Computers Work Flashcards
Examples of a computer
Robots
Phones
Coffee machines
Modern appliances
How does a computer work?
by receiving data through an input unit based on the instructions it is given and after it processes the data, it sends it back through an output device
What are the 4 main functions of a computer
Input
Processing
Memory
Output
What is an input
Information or data that is sent to a computer for processing.
Examples of an input?
Mouse
Keyboard
How do you establish a connection from an input device to a computer?
A physical port.
What does CPU mean?
Central Processing Unit.
What is a CPU?
The electrical circuitry in a computer responsible for executing instruction sets derived from programs that have been converted into machine code.
What does IPC stand for?
Instructions per clock.
What is the clock rate measured in?
Hertz.
What does IPS stand for?
Instructions per second
The clock rate and IPC (Instructions Per Clock) make up the what?
The IPS (Instructions Per Second).
The IPS (Instructions Per Second) measures what?
CPU performance.
What does CU stand for?
Control Unit.
What is the CU (Control Unit)?
A component of the CPU (Central Processing Unit) that directs the operation of the processor.
What does ALU stand for?
Arithmetic Logic Unit.
What is the ALU (Arithmetic Logic Unit)?
A digital circuit within the processor that performs integer arithmetic and bitwise logic operations.
What is Binary?
A number system of 1’s and 0’s which serves as a textual representation method for giving instructions to a computers CPU.
In computing and telecommunications, binary codes are used for what?
Various methods of encoding data
What device sends out regular pulses, and components such as transistors switch on (1) or off (0) to pass or block the pulses?
A clock.
“0” represents what?
No flow of electricity or “off”.
“1” represents what?
Electricity being allowed to flow or “on”
Binary digits can be grouped together into what?
Bytes
Bit is short for?
Binary digit.
