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37 Cards in this Set

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  • Back
Hardware
Computer's physical components, monitor, keyboard, memory chimps, Hard drive
Software
Instructions that directs the hardware to accomplish a task
4 basic functions of hardware
Input, output, processing & storage
Bit
1 or a 0 also called a binary digit
Binary
Technology of storing and reading only two staes, and the number system that only uses two digits,0 and 1 is the Binary number system
Byte
Group of 8 Bits
Most important component in the case
CPU/ microprocessor/ processor
CPU
All processing done by the computer, data received by input devices is read by the CPU and output from the CPU is written to output devices
All hardware requires..
method to communicate w/ the CPU
Software to instruct
Electricity
Primary input device of a computer
Keyboard
two most popular output devices....
Printer and the Monitor
15 pin 3 row connector
Video connector
25 pin parallel port connector
Printer connector
Two types of cables inside the computer case
Data cables & power cables or power cords.
Largest and most important circuit board in the computer
Motherboard (also named: main board or system board)
Peripheral Device
A device indirectly linked to the motherboard by an expansion card
Serial Port
Data is transferred serially (one bit follows the next)
-external modem
-serial mouse
Parallel port
Transmit data in parallel and most often used by a printer
Universal Serial Bus (USB)
Used by many idfferent input/output devices
-keyboards -scanner
-printers -mice
1394 port
Firewire port-used for high speed multimedia (digital cameras)
Components used for temporary storage found on Motherboard
Random Access Memeory (RAM)
Cache memory
Components that allow the CPU to communicate with other devices
traces, wires on the motherboard
Expansion slots
The system clock (keeps communication in sync)
Programming and setup data stored on the motherboard
-Flash ROM (permanently store instructions that control basic hardware)
-CMOS (hold config data)
Chip set
assists the CPU, group of microchips that control the flow of data and instructions to and from the CPU, providing careful timing of activities
Microprocessor and chip set manufacturers
Intel, AMD, VIA, SiS, Cyrix and others
Names for Temporary Storage
-Primary storage
-Memory
Two types of storage
-temporary
-Permanent
What does the CPU use Temporary storage for?
To temporarily hold both data and instructions while it is processing them--much faster to access then primary storage
Secondary Storage
When data and instructions are not being used, they must be kept in permanent storage or secondary storage
Primary Storage provided by devices called...
Memory or Random Access Memory (RAM)
The most common types of boards that hold memory chips are called ..
-SIMM (Single Inline Memory Modules)
-DIMM (Dual....)
-RIMM (Memory modules manufactured by Rambus)
What happens to information stored in RAM when the computer is turned off?
Whatever info is stored in RAM is lost when the computer is turned off. RAM needs continuous supply of electrical power to hold data
Volitile memory
RAM memory is volitile because it is temporary in nature
Nonvolitile memory
ROM (read only memory)- holds data permanently even when the power is turned off
Secondary Storage devices...
CD-ROM
DVD
Floppy disks
How many IDE connections are provided on the motherboard
2, primary and secondary
How many IDE devices are supported by a system?
4- two connections per cable