Computer Tech Flashcards
What does a computer do
Manipulated data in accordance with a set of instructions
Can only do what it’s told to
What is hardware
Physical components
What is software
What runs the compute
Ie iOS android
What is Von Neuman
CPU = control processing unit
What does the control processing unit contain
ALU (arithmetic / logic unit)
Control unit
Registry = short term memory
What is the point of a input / output device
Means of interaction and control
What are the peripherals of a computer
Input = keyboard / scanner : mouse
Output = screen / printer
Not touch screen
What is a computer bus
Wire = transports data between different parts of a computer
Communicating according to set standards
What is a USB
Universal Serial Bus
What is a CPU
Central processing unit
Computer may have one or more
1 cpu = multitask
Multiple CPU’s = multiprocess = working together to complete a task
What is volatile memory
Requires power
What is non volatile memory
Permanent
Permanent tends to have slower read / write process than volatile
What is RAM
Random access memory
Volatile
What is ROM
Read only memory
Non volatile
What is PROM
Programmable ROM
Can be programmed but only once
Non volatile
What is EPROM
Erasable PROM
Non volatile
What is EEPROM
Electronic EPROM
Non volatile
What is a operating system
Managed hardware / software resources
What is an assembly operating system language
Specific for a type of hardware
Like a plane
What is high level operating system language
Portable to other hardware
Can sometimes be taken device to device
What are scripts language for operating system
Performing repetitive tasks
What is level A software in aircraft
Fly by wire
Error may result in catastrophic failure condition
What is level B software in aircraft
FMS
Error may result in hazardous failure condition
What is level C software in aircraft
ATSU
error may result in major failure condition
What is level D software in aircraft
Minor failure
What is level E software in aircraft
Does not affect crew workload
Company communications
