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51 Cards in this Set

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  • Back

If we wish to encode numerical value of 225 what is the highest amount of bits we may use

8

colour #FFFFFF is


Colour #000000 is

F White


0 black

smallest to largest of binary units

Kila Byte, Mega byte, Giga Byte, Terra byte

decimal number to hexadecimal

divide by 16, and find remainder.

Collection of bits in the computers memory might be treated as

-binary numbers that can be added or subtracted

-ASC11 codes representing letters and other characters


-program instructions that tell the computer what to do


5 basic component types of any computer

CPU, Input device, output device, memory, storage device.

Info travels between components on the mother board through groups of wires called.

Buses



A CPU's performance is in part determined by

system clock speed and word size,



Inherent characteristic of ROM.

Read only.

Which of the following is an input device.

Mouse, scanner stylus...

primary key database table

uniquely identifies a record in the database

the number of bits per pixel on the screen is the

colour depth

first three generations of computer circuitry.

1.vacuum tube


2. transister


3. silicon chip



to convert light into electrons, and then into discrete values a bit camera uses

charges couple device (ccd) and an anologue to digital converter.

formulas addressed in a spreadsheet that refer to different cells when formulas are copied from one place to another are using

relative reference.



Program that allows tables to relate to eachother by a common field

multi table database



if we use one byte to store a number what is the largest we can store

255

Encoding #AAAAAA colour.

grey, all same is grey.

which of the following is true about ASC11

represents exactly 256 characters and symbols

one technique that microprocessor manufacturers use to eliminate bottlenecks and speed up most recently used data is

cache memory

Size of display is measured by

from upper left corner to lower right corner of display.

embedded computers preform specific tasks such as

monitoring security system, Monitoring heart rate, controlling tempature and huminity.

What does the speed of the processor depend on

Architecture, word size, clock speed, number of cores.

characteristics of RAM.

volatile, fast, randomly accessible data.

When you first turn on a computer the CPU is preset to execute instructions from

ROM

Two factors important to digitalizing sound,

Sampling Rate


Bit depth

number of pixels on the screen is

resolution

Z23, ABC, and eniac are all examples of first generation computers bcuz of their use of

vacuum tubes and relays

digitalize imaging goes through a process of.......... and the individual colours by,,,,

Demosaicing and interpoling.

For every clock in cycle of the cpu

A task is completed and a new one is began.

Hierarchy of standard data base.

Database, table, Record, Field.

Disk drives that use laser beams instead of magnets to read and write are called..

-CD/DVD-RW drives

Advantage of hard disk drive over a USB stick

Can hold more data for same price.

Which of the following service is not provided by operating system.

complimation of source code.

The look and feel of software from a human point of view is called

User interface

and advantage of bitmap graphics over vector graphics

better for touching up photos

statements false about JPG compression.

Its lossless

Which compression techniques is lossy

MP3 AND JPEG

Complier translates a program written in high level language to..

Machine language

most famous open source software

linux

Software that stores individual pixels rather than lines and shapes is known as

Bitmap and Graphics.

Order storage devices from fastest to slowest.. RAM hard disk, CD RAM.

1. CD-ROM


2. Hard Disk


3. RAM

in javascript which of the relational operators represents assignment

=

What should you buy if you want to be able to store various documents that are created daily on a day to day business for future reference

Buy larger hardrive for office computers

Purpose of database quesry

To retrieve information from all appropriate records.

Which is not a way of compressing an audio file

increase sample bit rate

Which of the following HTML tags does not have a closing tag




a webpage is created it must be uploaded to the ....... to be seen on www

web server.

Which doesnt force a nav element to start a new line

{display;inline}

On the computer variables are

memory locations

Which compression techniques r lossless

PNG and GIF