CS0001 intro to computing flashcards
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186 Terms
how many number of Bit (b) are there
1
what does Bit (b) makeup
the basic unit
how many number of Bits are in a Byte (B)
8
what is the make up of a Byte (B)
8 Bits
what is the number of Bits in Kibibyte (KIB)
8192
what is the makeup of Kibibyte (KIB)
1024 Bytes
what is the number of Bits in Mebibyte (MIB)
8338608
what is the makeup of Mebibyte
1024 KIB
what is the number of Bits in Gibibyte (GIB)
8589934592
what is the makeup go Gibibyte (GIB)
1024(MIB)
what is the number of Bits in Tebybyte (TIB)
8796093022208
what is the makeup of Tebybyte (TIB)
1024 GIB
what is number of bits in pebibyte (PIB)
9007199254740992
what is the make up of mebibyte (PIB)
1024 TIB
what is the number of Bits in Kilobyte (KB)
8000
what is the make up of Kilobyte (KB)
1000 Bytes
what is the number of Bits in a Megabyte (MB)
8000000
what is the makeup of Megabyte (MB)
1000 KB
what is the number of bits in Gigabyte (GB)
8000000000
what is the makeup of Gigabyte (GB)
1000 MB
what is the number of bits in a Terrabyte (TB)
8000000000000
what make-up the Terrabyte (TB)
1000 GB
what is the number of bits in a petabyte (PB)
8000000000000000
what makeup the petabyte (PB)
1000 TB
what is a internal bus system
everything connected via physical connections on the motherboard
what is bus width
number of wires in a bus
advantage of a wider bus
increase in speed
what are the three types of bus
Data bus Address bus Control bus
what does the the data bus do
Transfer data
what does the address Bus do
Transfer addresses
what does the control bus do
carries instructions
what is the processor
the core of the computer
what can a core do
instruction
what is multithreading
programs designed to use more cores
what does an ALU do
performs calculations
what does the controller do
manages execution of instructions
what does clock speed do
set pace of the computer
how does the machine clock communicate
through control bus
what does overclocking refer to
pushing processors faster that its design
what is the risk of overclocking
errors
what happens in each clock cycle
a core does one operation
what is cache
data currently worked on by the processor is kept
where is level 1 cache
in the core
where is level 2 cache
in the core
where is level 3 cache
on the die
what does output device allows people to do
see something from computer
what are types of input devices
keyboard
what is a type of output device
monitor
what is an example of hybrid device
VR headset
types of storage device
magnetic flash optical
what is a an important factor of interface
transfer speed
usb
default way to connect devices in consumer electronics
what is SATA used for
storage devices
what is PCI express used for
variety of internal devices
what is a graphics card
a miniature pc
what are the operating systems features
error reporting memory management device management
what does error reporting do
capture errors while software is running
what does memory management do
assigns memory for programs
what does device management do
handles device connected to the computer
what is a benefit of virtual memory
prevents out of memory errors
what is a disadvantage of virtual memory
slower loading times
what is the OS responsible for
communication and time management for devices
what does the file storage maintain using the OS
selection of data
what does the scheduler do
maintains a list of active processes
what does a dispatcher do
sends processes to the cpu cores
what is a goal of scheduler
make efficient use of processor time
what is a kernel
central core functionality
what does the kernel consist of
file management , device drivers , memory management
what does a lan do
cover single buildings
what does wan do
covers a large area
what does a metropolitan area (MAN) do
covers an area within a city
what is a protocol
rules by which something is handed by
what is CSMA/CD
main protocols used for wired networks
what is the CSMA/CA
main protocol used for wireless networks
what are network speeds measured in
Kilobits
what is WLAN used for
portable devices at short distances
what is Fiber optic used in
industrial applications
what does a top end ISPs do (tier 1)
connect directly to the internet backbone
what does ISPs deal with (tier 2)
with other isps
what is a tier 2 ISPs
large ISPs within a country
what does tier 2 ISPs
connect major clients
what does access do
connect end users directly
what does access deal with
small businesses and families
what does dsl use to deliver connection
phone network
where is dsl most commonly used
UK and Europe
what are the speed of dsl
100Mb/s
what does cable use to deliver connection
TV network
where is cable commonly used
North America
what are the speed of cable
400Mb/s
what does mobile (FWA) use to carry connection
phone signal
what is the speed of Mobile (FWA)
2 to 80MB/s
what does speed depend on for mobile(FWA)
atmosphere
what is finer optic speed
1GB/s
what does application do
send and receive messages
what does transport do
handles messages as transmissible packets
what does network do
manages addressing for packets
what does link do
Transmit and receives packets
how many internet addresses are allowed on IPv6
3.4×10^³8
what does transmission control protocol do
control speed and send messages
what does user diagram protocol do
send message to the address