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CS 3 INTRO TO PROGAMING > HARDWARE > Flashcards

Flashcards in HARDWARE Deck (11)
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1

inside the system unit a computer

power supply and fan
sound card
video card
Processor
heatsink and fan
memory module
battery
circuit boards

2

For every instruction, a processor repeats a set of four basic operations, which comprise a machine cycle

Fetch the instruction from RAM
– (called a Register)
• Decode the instruction
• Execute the instruction
• Store the result back to RAM
• The Operating Systems works with the CPU to place the instruction on RAM then get the result back.
• How fast the 4 steps are executed decides the speed of the CPU

3

CPU speed

System clock, regulates CPU’s processing functions by emitting pulse at the regular intervals. Controls the timing of all computer operations

4

CPU speed

The pace of the system clock is called the clock speed, and is usually measured in gigahertz

5

CPU speed

Each tick of the system clock, the CPU does a step of the Machine Cycle

6

memory stores

Stores three basic categories of items:
 The operating system and other programs
 Applications
 Data being processed and the resulting information

7

an hold an adapter card
 Bluetooth, enables Bluetooth connectivity
 MIDI, connects to musical instruments
 Modem, connects to transmission media, such as cable TV lines or phone lines
 Network, provides network connection such as Ethernet port
 Sound, connects to speakers or microphone
 USB, connect to high-speed USB ports
 Video, provides enhance graphic capabilities such as accelerated processing or the ability to connect a second monitor

adapter cards and expansion slots

8

A storage device is the hardware that records and/or retrieves items to and from storage media

reading and writing

9

Characteristicsofaharddiskinclude:

tracks
sectors
platters
form factor
read/write head
revolutions per minute

10

input devices

keyboard
touchscreen
scanners
video input
voice command

11

output devices

monitor
printers
data projectos
speakers