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Transistor components, magnetic core memory, smaller size, easier
to program, disk drives and drums, called mainframe computers
2nd Generation of Computers
Silicon chips (known as ICs - integrated circuits), reduced cost,
called mini computers, networks introduced via dumb terminals
3rd Generation of Computers
Written for a specific machine by the engineers who built and ran
the
computers; no need for OS since only one program could run at a
time
Low-level Language
,Easier than machine but still required detailed, precise LOW
LEVEL instructions
Assembly Language
Function is to TRANSLATE ONE LANGUAGE TO ANOTHER; take
source code and convert it to another form; source code by itself
cannot be read by a computer
Language Translator Programs
Programmer is limited to high level control constructs such as
while loops, for loops, and if/else statements and not allowed to
use primitive GOTO statements
Structured Programming
A type of programming language for which most of its
implementations EXECUTES INSTRUCTIONS DIRECTLY AND
FREELY, without previously compiling a program into
machine-language instructions.
Interpreted Language (Code)
Small programs that place Linux commands or DOS batch files into a
file
Shell Scripting
,The computer that the user is using; physically present with
Local Computer
Connects computers to each other with NO REAL
UNDERSTANDING OF WHAT IS BEING TRANSFERRED Used for
private networks with local
computers.
Network Hub
Like a hub, but this will only send data that is INTENDED FOR
SPECIFIC COMPUTER
Network Switch
Can be connected to hub, switch, or router; many routers now also act
as a wireless access point; sends out a wireless signal so computers
on the network can connect without a cable
Wireless Access Point
Contains one or more servers; client is a computer that will request
information from another computer; server is a computer that takes
requests and responds with the requested information; the software
used facilitates
communication with remote servers
Client-server Network
, Stores data files (web pages) and programs (scripts). Responds
from anywhere on the Internet.
Web Server
Monitors print jobs
Print Server
Like web server or file server in that REQUEST ARE FILES and
RESPONDED ARE THE FILES data delivered between client and
server.
FTP Server
Devices connected along a SINGLE CABLE Size of network is
restricted
Bus Network
Each device is connected to a CENTRAL DEVICE such as a hub or
switch.
Star Network
Each device is connected DIRECTLY TO ITS NEIGHBOR and
messages are forwarded from device to device until the proper
destination is reached.
Ring Network