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51 Cards in this Set
- Front
- 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 |
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smallest to largest of binary units |
Kila Byte, Mega byte, Giga Byte, Terra byte |
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decimal number to hexadecimal |
divide by 16, and find remainder. |
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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 |
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5 basic component types of any computer |
CPU, Input device, output device, memory, storage device. |
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Info travels between components on the mother board through groups of wires called. |
Buses |
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A CPU's performance is in part determined by |
system clock speed and word size, |
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Inherent characteristic of ROM. |
Read only. |
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Which of the following is an input device. |
Mouse, scanner stylus... |
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primary key database table |
uniquely identifies a record in the database |
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the number of bits per pixel on the screen is the |
colour depth |
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first three generations of computer circuitry. |
1.vacuum tube 2. transister 3. silicon chip |
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to convert light into electrons, and then into discrete values a bit camera uses |
charges couple device (ccd) and an anologue to digital converter. |
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formulas addressed in a spreadsheet that refer to different cells when formulas are copied from one place to another are using |
relative reference. |
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Program that allows tables to relate to eachother by a common field |
multi table database |
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if we use one byte to store a number what is the largest we can store |
255 |
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Encoding #AAAAAA colour. |
grey, all same is grey. |
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which of the following is true about ASC11 |
represents exactly 256 characters and symbols |
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one technique that microprocessor manufacturers use to eliminate bottlenecks and speed up most recently used data is |
cache memory |
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Size of display is measured by |
from upper left corner to lower right corner of display. |
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embedded computers preform specific tasks such as |
monitoring security system, Monitoring heart rate, controlling tempature and huminity. |
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What does the speed of the processor depend on |
Architecture, word size, clock speed, number of cores. |
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characteristics of RAM. |
volatile, fast, randomly accessible data. |
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When you first turn on a computer the CPU is preset to execute instructions from |
ROM |
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Two factors important to digitalizing sound, |
Sampling Rate Bit depth |
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number of pixels on the screen is |
resolution |
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Z23, ABC, and eniac are all examples of first generation computers bcuz of their use of |
vacuum tubes and relays |
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digitalize imaging goes through a process of.......... and the individual colours by,,,, |
Demosaicing and interpoling. |
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For every clock in cycle of the cpu |
A task is completed and a new one is began. |
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Hierarchy of standard data base. |
Database, table, Record, Field. |
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Disk drives that use laser beams instead of magnets to read and write are called.. |
-CD/DVD-RW drives |
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Advantage of hard disk drive over a USB stick |
Can hold more data for same price. |
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Which of the following service is not provided by operating system. |
complimation of source code. |
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The look and feel of software from a human point of view is called |
User interface |
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and advantage of bitmap graphics over vector graphics |
better for touching up photos
|
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statements false about JPG compression. |
Its lossless |
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Which compression techniques is lossy |
MP3 AND JPEG |
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Complier translates a program written in high level language to.. |
Machine language |
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most famous open source software |
linux |
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Software that stores individual pixels rather than lines and shapes is known as |
Bitmap and Graphics. |
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Order storage devices from fastest to slowest.. RAM hard disk, CD RAM. |
1. CD-ROM 2. Hard Disk 3. RAM |
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in javascript which of the relational operators represents assignment |
= |
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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 |
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Purpose of database quesry |
To retrieve information from all appropriate records. |
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Which is not a way of compressing an audio file |
increase sample bit rate |
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Which of the following HTML tags does not have a closing tag |
|
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a webpage is created it must be uploaded to the ....... to be seen on www |
web server. |
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Which doesnt force a nav element to start a new line |
{display;inline} |
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On the computer variables are |
memory locations |
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Which compression techniques r lossless |
PNG and GIF |