Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/15

Click to flip

15 Cards in this Set

  • Front
  • Back
Explain how a printer 'buffer' operates
Print jobs are sent to the printers inbuilt RAM where they are stored until the printer is ready to print them
What is meant by the term 'spooling'?
Print jobs are stored in a queue on backing store until the printer is ready to receive them
In 'floating point representation' what is the effect of having more bits for the 'mantissa'?
Having more bits for the mantissa will improve the precision of the numbers represented
A school is using a web server to allow pupils access to the Internet. Describe two functions of a web server
A web server can provide virus protection, cache pages locally and filter out undesirable web pages
State two advantages of a 'client server network' over a 'peer-to-peer'
Updates to software on stations can be managed by the server. There is a central backup of all files
Describe two methods of comparing the performance of two computers
Mips- measuring how many Millions of Instructions are processed per second and Benchmarking- a set of tasks to measure performance
What is cache and how does it improve system performance?
Cache is fast access memory. It reduce the number of fetches to the slow RAM by holding commonly used instructions
Explain how parallel transmission of data works
Data is grouped in 7 bits and transmitted along wires at the same time
In 'floating point representation' what is the effect of having more bits for the 'exponent'?
Having more bit for the exponent will extend the range of the numbers represented
Explain why increase the width of the data bus will improve system performance
With a wider data bus more data can be fetched from memory in each fetch execute cycle
Explain how a serial interface operates
Data is sent one bit at a time along a single transmission line
In 'bit-mapped graphics' what is meant by the term 'bit-depth'?
The number of bits used to store each pixel and used to represent a range colours
Explain the effect on file size of increasing the 'bit-depth' of a graphic?
The file size would increase as more bits are used to store each pixel
State one disadvantage of a 'client server network' over a 'peer-to-peer'
If the server fails then the whole networked is down
Explain the effect on file size of reducing the 'resolution' of a graphic?
The file size would reduce as there are less pixels in any given area