A customer
A person who buys products or services.
Customer support
Services that help a customer understand and benefit from a product's capabilities by answering questions, solving problems, and providing training.

Customer service
Services that ensure customers receive value for the products or services they purchase.
External customer
A person or company that buys another companies products or services.
Peer -to-peer support
A practice where users bypass the traditional support structure and seek assistance from a co-worker or someone else that can help.

Internal customer
A person who works at a company and at times relies on other employees at that company to perform his or her job.
Network
A system in which a number of independent computers are linked in order to share data and peripherals, such as hard disks and printers.

LAN
Local area network
Man
Metropolitan area network
Wan
Wide area network
Digital signal
Uniform signals.  Binary digits 0 and 1.
Modem
Modulator-demodulator.  Converts electrical signals from a computer into an audio form transmittable over telephone lines.

Analog signal                       
Continuously variable signals.  Subject to distortion and noise but capable of handling complex signals.
Hardware
Physical components that make up a microcomputer, monitor, printer, and so on.
Software
A series of instructions loaded in the computer's memory that instructs the computer how to accomplish a problem or task.

Virus
A type of resident program designed to replicate itself.  Usually at some later time when the virus is running, it causes an undesirable action to take place

Client-server network
Topology
URL
Uniform Resource Locator
Windows NT
Cache
An intelligent buffer.  Cache contains the data that is accessed most often between a slower peripheral and the faster CPU.

Computer
Architecture
Platform
Operating system
Two basic system types
ISA 
Industry Standard Architecture
PCI
Peripheral Component Interconnect
SCSI
Small-Computer Systems Interface
Address
Refers to where a particular piece of data or other information is found in the computer.  Also the location of a set of instructions.

CMOS
Complementary Metal-Oxide Semiconductor.  Used to store and maintain the clock setting and system configuration.
BIOS
Basic Input/Output system.  Burned into ROM chips. Part of the operating system that handles the communications between the computer and its peripherals.

Protocol
A system of rules and procedures governing communications between two or more devices.
51/4" Double     360K                                                    51/4" high    1.2M
31/2" Double     720K                                                    31/2" high    1.44 Mb
CD      650-680 M

Bus Arcateture
ISA--- Industry Standard Architecture
EISA---Extended Industry Standard Architecture---
PCI---Peripheral Component Interconnect---does not directly connect with CPU---Mezzanine Bus-Local Bus
MCA---Micro Channel Architecture---Closed Architecture---IBM
PC/XT-8bit or 16bit  ISA
AT--16

Drive Technology
EIDE---Enhanced

Computer Cases
Tall--Tower
Desk Top-Pizza-box

Centralized computing
Monitor but no computing capability----Dumb Terminal

Difference between
Microcomputer Architecture---
Microcomputer Platform---

CPU Archature
Power increases of
80486---
80386SL---APM (advanced power management )
?Features---multitasking, virtual memory,

User interface-command line,  DOS,  code,  software,  keyboard,  mouse,

System software SAME AS operating system
Peripheral devices-device driver

Executable devices
File extensions

Drives
24 drive letters available
26 total Computer Storage Devices----but A&B are spoken for no matter what!!!!
Hard drive and other devices are from C - Z
Disk drive access times--- mila-seconds
RAN speed times---nano-seconds
Partical size used to coat storage disk---Density
Hard disk stores more data due to--- more compact density

Know where to put
Floppy,  RAM,  Hard disk

What is the drive called used to load the operating system files?

How are microprocessors packaged?   PGA  ( pin grid array )

SIMM---Single Inline Memory Module

Digital---Standardized pulses - one of two distinct states 0 & 1
Analog-continually variable

Circuit on main board that moves data from one place to another--- Bus

Circuit board lines that carry the location of data to be processed---Address lines

Access speed of most RAM chips---
Storage capacity of RAM memory---

Supplement RAM memory---Virtual memory
When the computer is powered on the system reads the ROM.    BIOS

BIOS
CMOS

The list of instructions a CPU is able to execute is the   Instruction set

RISC or SISC Archature
Complex or Reduced instruction type computing
?code base      ?instruction set         ?program set            ?processing list

Memory that provides the CPU fast access to data----cache

A computer processes its data in pulses, the length would be by the---systems clock
Measured in-----MHz

A register
A bus
A bus width

The size of a word that a computer can process is determined by --- the size of the registers

A 16 bit register can work on 2 charatures at one time.  8 bite to acharature

TRAPAZOID SHAPE
DB9---serial connectors
DB25-parallel connectors
Computer cable connectors are named based on their?   Number of pins

Pipeline---
Superscaler---

Other name for a connector is?  Interface,  PORT
Expansion card contains WHAT for connecting an external device?  PORT
 

How many ways can a keyboard be connected?  2     a DIN
How many ways can a mouse be connected?  2 serial,

The first instructions that a computer will execute upon being powered on are stored in?  ROM BIOS
During the boot-up process the computer first reads the __ drive?  A

What are system files?  IO.sys,  MSDOS.sys,  command.com,  ( drivespace.bin if WIN95 ) all containing hidden read only system file attributes!!!

 
Done when you type format c: /S

Bad or missing COMMAND INTURAPTURE means?  Command.com is missing or damaged.

1st IBM PC had its microprocessor based on?  80888

2 primary microprocessor families are?
X86---
power PC-uses the   RISK architecture

P6 generation of INTEL processors is more commonly called?  Pentium 2 and Pentium Pro
 
On the processor chart which one of the four columns apply to the original Pentium processor when it first came out?
Look at the date line  "1993"