How many types of ports

adminNovember 7, 2018November 8, 2018

Read Time:1 Minute, 42 Second

Who was john Napier

Ans: John Napier , a scottish mathematician, created logarithm tables to facilitate

Calculations.

Q: Define high level language?

Ans: High level languages are close to human languages and far from the machine language.These are machine independent language which are also Known as ” third generation ” languages. These languages consist of English Words, basic mathematical symbols and a few punctuation characters. These languages allow simple statements to be expressed concisely. Each high level language has its own language translater.

Q: Why were punched cards used?

Ans: Invention of punched cards opened a gate to modern data processing .

IBM and other computer manufacturers came forward and started production of punched-card using computers. These computer could add, multiply and sort numbers. Data were fed and results were produced on punched cards.

Q: How many types of ports are there?

Write their names.

Ans: There are three types of ports:

1) Serial ports 2) Parallel ports

3) USB Ports

More Ports Types

PS/2.
Serial Port. DB-25. DE-9 or RS-232 or COM Port.
Parallel Port or Centronics 36 Pin Port.
Audio Ports. Surround Sound Connectors or 3.5 mm TRS Connector.
S/PDIF / TOSLINK.
Video Ports. VGA Port.
Digital Video Interface (DVI) Mini-DVI. Micro-DVI.
Display Port.

Q ; Define Date Bus ?

Ans ; The most common bus is the date bus. A date bus carries. it is an electrical path that connects the central processing unit (CPU), memory,, input / output devices and secondary storage devices.

Q ; What is meant by out put?

Ans; The information which is received on output devices called output.

(i) What is CD-R ?

Answer; A CD-Recordable (CD writer) is a drive that allows you to record information to a CDR disk (compact Disk Recoverable). The recorded information can be a mixture of data, digital audio, and video. A CDR disk will hold a maximum of 700 megabytes of data or 800 minutes of digital audio or vedio.

in cases of mixing formats, the amount of information is proportional to each other.