Instituto Profesional CENAFOM
Ramo: Inglés Técnico
Jornada: Vespertina
Profesor: Fernando Guerrero T.
Pauta 2da. Prueba Solemne
I.- Dictated Vocabulary
Abandonware absolute link
accelerator
access control
Back
door
background
back panel
backspace
II.-
Technical Vocabulary to study
Backup
and restore
bad sector bad track bandwith
basic
Base
memory
cache
caps lock key carriage return
CASE
CD-ROM burner CD-RW DARPANET
Database
machine Data conferencing data flow
data-link layer
III.- Texto to translate and answer basics questions:
Computer
communication is the transmission of
data and information over a communications channel between two computers, which can be several different things.
Communications between computers
can be as simple as cabling two computers to the same printer. It can be as complex as a computer at NASA sending messages
through an elaborate system of relays and satellites to tell a computer on Mars how to drive around without hitting the rocks.
Depending on the context,
for computer communications you might use the terms:
Data Communications for transmission of data and information
over a communications channel
Telecommunications for any long-distance communications, especially television
Teleprocessing for accessing computer files located elsewhere
Transmission media just means the physical materials that are used to transmit data between computers.
Cable
For communications between
computers that are linked by cable, there are three choices.
Twisted wire |
(phone line)
Advantage: |
Easy to string Cheap |
Disadvantage: |
Subject to interference = static and garble |
|
|
Coaxial
cable |
(round insulated wire)
Advantage: |
Not susceptible to interference Transmits faster |
Disadvantage: |
Heavy & bulky Needs booster over distance |
|
|
Fiber
optic line |
(glass fibers)
Advantage: |
Smaller Lighter Faster (speed of light!) No interference |
Disadvantage: |
Expensive Harder to install and modify |
|
|
Broadcast
For longer distances or when cables are not practical, other transmission media come
into play. We're getting really high tech here!
It may seem odd to call microwaves,
radio waves, or light a "physical" medium. All are electromagnetic in nature. Sometimes they are treated by scientists like
streams of teeny, tiny particles and other times like waves on the beach. In their "particle" life, they do behave like a
bunch of physical particles. So it's not quite as odd as it first appears. (But all those electromagnetic things are plenty
odd!)
Wireless |
(infrared, light, radio)
Advantage: |
Flexible Portable |
Disadvantage: |
Slower data transfer than hard-wired methods Subject to interference |
|
|
Microwave |
Advantage: |
Speed of light Uses a few sites |
Disadvantage: |
Line-of-sight only |
|
|
Satellite |
Advantage: |
Always in sight |
Disadvantage: |
Expensive uplink and downlink facilities |
|
|
IV.-
Gramatics ans verbs
Verb
to be
Verb
to have
Verb
to do
Verb
to have got
Fill
sentences (Complete sentences)
“Students,
get study more than enough, enough it’s not the minimal thing to do”