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Unit 6: Hardware

6.6 summary notes

• Both Windows and Mac OS use hundreds of patents shared between the two.

• There are many hardware devices which are generally used for making a connection between
two or more devices such as cables.
• Users can plug one or more standard analogue telephone devices into the ATA.

• Most electronic data storage media are considered permanent (non-volatile) storage, that
is, the data will remain stored when power is removed from the device.

• Input and output devices together make up the hardware interface between a computer
and the user or external world.

• Electronic output devices can be mechanical, audio or visual.
6.7 Keywords

analogue telephone adapter (ata): It is a device used to connect one or more standard analogue
telephones to a digital telephone system or a non-standard telephone system.

fireWire: It provides a single plug-and-socket connection on which up to 63 devices can be
attached with data transfer speeds up to 400 Mbps.

random access Memory (raM): It is the main memory where the operating system is initially
loaded and the application programs are loaded at a later stage.

small Computer system interface (sCsi): It is a set of ANSI standard electronic interfaces that
allow personal computers to communicate with peripheral hardware such as disk drives, tape
drives, CD-ROM, etc.
touchscreens: They are monitors that usually have a textured coating across the glass face.
Universal serial Bus (UsB): It is a standard for a wired connection between two electronic devices,
including a mobile phone and a desktop computer.

1. Show, how FireWire connects two personal computers?
2. Connect five peripheral devices in parallel line.

6.8 review Questions

1. Distinguish between Macintosh and Windows.
2. Define integrated drive electronics interface.
3. What are the features of small computer system interface?
4. Explain the purpose of analogue telephone adapter.
5. Describe the different versions of USB.
6. What do you mean by storage device? Explain any three of them.
7. Distinguish between random access memory and read-only memory.
8. Explain the different types of pointing devices.
9. What is flat-bed scanner?

10. What do you understand by video and audio output device?

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