Computing - Term 1 Cycle Test Flashcards
What is an imput device?
A device that is used to give information to a device.
A hardware that sends data into a computer that sends data to the computer system from the outside world.
What is an output device?
A hardware that receives data from the computer system to the real world, representing it in some form for the user.
What is a storage device?
A hardware that save data so that it can be recalled and used again.
What are some examples of a output device?
Speaker
Monitor
Printer
Headphones
GPS devices
Projectors
What are some examples of a imput device?
Keyboard
Mouse
Controller
Microphone
Touch screen
Scanner
Joystick
What are some examples of a storage device?
SIM card
USB
SSD
Hard Drive
RAM
ROM
Pen drive
Magnetic Disk
Floppy disk
What is a motherboard?
Connects all the parts of the components.
What is a CPU?
Central Processing Unit
What is a RAM?
Store currently running instructions + Applications.
Short Term Memory
What is a Hard Disk Drive
Stores everything that has been saved to the storage for the long term storage.
What is BIOS?
Basic Imput Output System
What is an ALU?
Arithmetic Logic Unit.
It performs arithmetic calculation and makes logical decisions.
What is a CU?
Control Unit.
Sends signals to control how data moves around the CPU.
What is a Cache?
It provides fast access to frequently used instructions and data.
Personal storage for the CPU.
Temporary storage.
What is a register?
A type of computer memory used to quickly accept, store and transfer data and instructions that the CPU needs immediately.
What factors affect the CPU performance?
Clock speed
Cache size
Number of cores
How does the clock speed affect the CPU performance?
The faster the clock speed, the faster the computer is able to run fetch-decode-execute cycles.
How does the number of cores affect the CPU performance?
CPUs with multiple cores have more power to run multiple programs at the same time.
How does the cache size affect the CPU performance?
The larger the cache size, the less time a processor has to wait for instructions to be fetched.
What are the disadvantages of more cores?
Doubling the number of cores won’t double processing speed.
Cores need to communicate with each other, which takes this.
What is ROM stand for?
Random Access Memory
What is ROM stand for?
Read Only Memory
What is is the does ROM have that RAM doesn’t have?
Read only memory
Non-volatile
Permeant data
Boot strap loader (BIOS)
Part of the operating system
What is is the does ROM have that RAM doesn’t have?
Random access memory
Volatile
Temporary memory
Currently used applications
Data + Instructions
What does the computer systems diagram look like?
Communication
Imput———->Processing, Primary Storage ———-> Output
Secondary Storge
