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The term SOFTWARE refers to?
- instructions used to manipulate hardware
- 4 basic functions: input, processing, storage and output.
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All hardware op r based on binary values: on and off states
Binary number system only uses 0 and 1
0 or 1 is called a bit
byte= 8 bits
nibble = 4 bits
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What is the most important component in a case?
- CPU ( Central Processing Unit), or processor or microprocessor
- A CPU reads (I), process data and writes data to storage
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The most common coding method for text is called...
ASCII
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Which elements r required by I/O and storage devices to operate?
- A Method for CPU to communicate w device;
- Software to Instruct and control the device;
- Electricity to power the device.
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All circuit boards contains microchips, which uses...
CMOS ( Complementary metal-oxide semiconductor) technology. It req less electricity and produces less heat.
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Which type of cables are inside the case?
data cables and power cords
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What is the largest and most important circuit in a computer?
it's the motherboard.
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A device that is not installed directly in the motherboard is called?
peripheral
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Every CD-R can b a burner it all depends on the OS
The case is also called CPU for older school ppl
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How many processing chips can u have on a motherboard?
one or 2.
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Parallel port: Transmits data in parallel (most used by a printer);
S/PDIF ( Sony Phillips Digital Interface): Connects to an ext Home Theater
Firewire Port: (1394 port): used for high speed multi media devices ie cam corders
Serial Port (provided by older mother board) used for an ext modem system
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refrigerators were buit to mk processing cooler
- therma for computer
- refrigeration chips
- power fans
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PC Architecture
I386 defined architecture for ur cores. regardless of size of processors
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Data Thru Put
- It is not about the speed but about the thru put. It is about the volume that travels.
- Access and sync time are the things that matters. On a hard drive how many times it speeds does not matter.Fast is not always better and can be expensive.
Multicore dont perform well; slows the process
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Power also comes in
waves and tidal waves.
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What is the function of a CPU?
The processor or CPU is the chip inside the computer that performs most of the actual data processing.
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What is a Chipset?
a grp of microchips on the motherboard that control the flow of data and instructions to and from the processor, providing careful timing of activities.
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Primary Storage: Faster but Temporarily/Volatile (RAMM Random Access Memory Modules)
Secondary Storage: Slower but Permanent /Nonvolatile (Hard disks, floppy, USB flash drives, CDs DVDs..)
3 general types of modules for RAM: DIMM(Dual inline memory module); RIMM and SIMM(single inline memory module-older outdated type)
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What is a hard drive?
It is a single case containing platters or disks that rotate at a high speed.
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What is a PORT?
Access point located in the back or front of a case.
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Chief input devices?
Keyboard and Mouse
Output: Monitor and printer
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Internal Devices common to most computers
- Motherboard; Floppy Drive; Hard drive, CD Drive
- Power Supply;
- Circuit Boards (for int and ext comm)
- Cables to connect devices to all circuit boards
Most storage and processing occurs in the case.
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What is an IDLE?
Technology used by most hard drives nowdays. Integrated Drive electronics.
A motherboard can accommodate up to 4 IDLE devices.
A serial ATA standard allows for more than 4 drives installed in a system.
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how much memory can a floppy disk hold?
1.44 MB
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CD-ROM
Compact Disk Read Only Memory
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Traces
circuits or paths that enable data, instructions, and power to move from component to component on the board.
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What is a protocol?
is a set of rules and standards that any two entities use for communication
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two states inside a computer
- on and off
- zero or one
- zero=no voltage
- one= voltage
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What is a data path size?
- The width of a data bus
- the data of most system buses is about 64 bits wide
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What is the functionality of a system clock?
- it is used to synchronize activity of the chips on the motherboard.
- the clock speed is measured in hertz one cycle per second
- megahertz in one million
- gigahertz is one billion
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The Most important component on the computer electrical system?
power supply, which converts and reduces electricity to a voltage that the computer can handle. In addition, runs a fan directly from the electrical output voltage to help cool down the inside of a computer case.
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What is a firmware?
Software embedded on a hardware. hybrid nature.
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The most important component inside the comp is
The motherboard
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ROM BIOS on a motherboard holds the basic software needed to start a PC and begin the process of loading an OS. Most ROM are FLASH ROM, meaning it can be updated w/o exchanging the chip.
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The CMOS set up pgrm is used to
change motherboard settings or config info.
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