CHAP2 Flashcards
(33 cards)
speed of a modern processor is measured
GHZ
Two primary factors can limit the speed of a
processor
Transmission Dwlay// cause delay, trans mitting data thru the transistors n wires creates a delay
HEAT GEneration //dhil nag on off, small heat is generated,, thus too hot
MEMORY can be ?
Unbuffered memo// reads data diretcly from memory bank, thus faster than the buffered memo.
Buffered memo// uSe large amount of ram
Signs that an internal storage device is failing might be unusual noises, unusual vibrations, error
messages, or even corrupt data or applications that do not load.
• Internal drives usually connect to the motherboard with SATA while external drives connect with
USB, eSATA, or Thunderbolt.
• Legacy motherboards may only offer the IDE or EIDE interface.
• When selecting a HDD, it is important to choose one that is compatible with the interfaces offered
by the motherboard.
• Most internal HDDs are available in the 3.5 inch (8.9 cm) form factor, however 2.5 inch (6.4 cm)
drives are becoming popular. SSDs are generally available in the 2.5 inch (6.4 cm) form factor.
3 DRIVE BAY WIDTH
2.5 in - for Hdd nd Ssd
3.5 - for hddd common, has additional usb port or smart card readers
T.25// common used for optical drives
HOW TO INSTALL ADAPTER CARDS
Find, Align , press, Secure
BIOS?
A ROM CHIP on the motehr board that contains small program that controls the commu between the operating sys, nHARD WARE
UEFI?
United Extensible Firmware Interface, for security issues ng BIOS, CAN RUN 32 bit n 64 Bit, has secure boots
FEATURES NG UEFI 5
Pass word //Allow different levels of acces tl the BIOS SET
Drive Encrytion // prevent data therft
LoJack// allows the owner to locate, delete, lock the device
Trusted Platform Module (TPM) // a chip designed to secure hardware by encry keys, digital footprints
Secure Boot/b oots an OS that is secured by motherboard
EEPROM
Electronically Erasable Programmable Read Only Memory // e upgraded by the user without opening the computer case
measure of work required to move a charge from one
location to another.
Voltage
The measure of the amount of electrons moving through a
circuit per second, measured by ohm
Current
Refers to the opposition to the flow of current in a circuit
Resistance , measured in OHMS
Measued in watts , measure of the work required to move electrons through a
circuit multiplied by the number of electrons going through the circuit per second (cu
POWER P
Complete loss of AC power
BLACKOUT
Reduced voltage level of AC power that lasts for a period
of time.
Brownout
Interference from generators and lightning.
Noise
Sudden increase in voltage that lasts for a short period and
exceeds 100 percent of the normal voltage on a line.
Spike
Dramatic increase in voltage above the normal flow of
electrical current.
Power Surge
Helps protect against damage from surges and
spikes.
Surge Protector
protect against
potential electrical power problems and provides a consistent
quality of power when brownouts and blackouts occur.
UPS ( UNINTERRUPTABLE Power Supply
Helps protect against potential
electrical power problems by providing a backup battery that is on
standby during normal operation
SPS OR STANDBY POWER SUPPLY
CPU MAY USE 2 types
RISC (Reduced Instruction Set Computer // use relativeky small instruc
CISC (Complex Instructio Set Computer// the archi uses. Broar set of instruc
Hyper-Threading
When muktiple coddd rnexecuted simultaneously, performs like 2 cpus
