How many types of ports

Who was john Napier

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

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.
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.
Previous post Mobile Application Institute in Pakistan
Next post What Are The Types of Programming Languages in 2019

Leave a Reply

Your email address will not be published. Required fields are marked *