Personal Computer 1st midterm
Which of the filling are examples of ASCII characters?
!, @, $
How many bytes are in a kilobyte?
1,000
____ is an encoding for English alphanumeric characters as 7-bit nimbers
ASCII
Who was the first person to write a program for a computing device?
Ada Lovelace
The camera on a Phone or laptop can be used to track a user's eye movements. Which of these is not one of the possible applications of this technology is listed in the course reading
All of these are possible: detecting cognitive disorders, measuring the users intelligence, gathering marketing information for advertisers
____ is a small block of very fast memory typically between 512Kb and 2 Mb
Cache
A computers display is also called ____
Monitor
In 1843, Ada Lovelace predicted the computers could be used to:
Produce graphics, compose music, be useful to science
A____ is a special computer designed for technical or scientific applications.
Workstation
The number 5 in hexadecimal is ___ in decimal
5
Which of the following represents the binary number 110100 in decimal
52
Which of the following is a QR code most likely used for
A link to a website on an event poster
Smaller dot pitch indicates _____
A sharper image
What is the name of the predecessor to the internet developed by the u.S. department of denfense
ARPANET
____ is a disk drive that uses laser light to read from or write to optical discs
An optical disc drive (ODD)
A web browser is an ____ used to browse _____
Application / the internet
What is typically the smallest addressable unit of memory in a computer system
Byte
With microprocessors, the integration of a whole ______ onto a single chip or on a few chips greatly reduced the cost of processing power.
CPU
The acronym CPU stands for
Central Processing Unit.
This computer was used to crack the Nazi military codes in World War 2
Colossus
The first mechanical computing device ever designed was Charles Babbage's
Difference engine
This alternate keyboard layout places commonly used letters in more central locations than the standard keyboard layout
Dvorak
An ______ is a computer system which is part of a larger system which performs a dedicated function.
Embedded Computer
By what unit is a modern computer's clock speed typically measured?
GHz (gigahertz)
_____ creates a sense of touch by applying forces, vibration, or motion to the user
Haptic feedback
The most common color printers are
Inkjet
_____ developed the first micro processor
Intel
Which are the most common input device for a personal computer?
Keyboards and pointing devices
Which is one of the main differences between LED/LCD and CRT monitors
LED/ LCD monitors are a type of flat screen display and CRTs are not.
An ______ repeatedly passes a laser beam back and forth over a negatively charged cylinder called a drum to define a differentially charged image
Laser printer
Deterring whether one value is equal, greater or smaller than another Value is an
Logical operation
A ____ is a computer processor which incorporates the functions of a computers central processing unit on a single integrated circuit
Microprocessor
_____ predicts that the number of transistors in a dense integrated circuit doubles approximately every two years
Moore's Law
A Common hand held input device used to move a cursor around a computer screen is called a
Mouse
A _____ is a computer system which reads images of text from paper and converts them into a form a computer can interpret by using pattern recognition
OCR
____ is a component found on a computer's motherboard
PCI slots, CPU, RAM
____ is where several processes on a computer system are distributed across different processors and executed simultaneously generally to speed up processing
Parallel processing
Charles Babbage's Analytical Engine was programmed using
Punched cards
The acronym RAM stands for
Random Access Memory
What technology made it possible for computer to become small enough to fit in a persons desk (or later pocket)?
Silicon chips
These systems are helpful to people who cannot use their hands while they work
Speech recognition
the amazon echo and apples siri now use which input method
Speech recognition
Accelerometers can be found in the following devices
The Nintendo wii remote, laptop hard drives, smartphones
In 1939, Konrad Zuse create this programmed electronic computer
The Z1
The distance between the dots in a display is called
The dot pitch
The simultaneous communication process between a mainframe and several users is known as
Timesharing
The most common pointing device used on a laptops is the
Touchpad
This was the first general purpose computer for sale to the public
UNIVAC
_____provide standardized connections for a wide variety of devices (such as keyboards mice printers digital cameras and smart phones) to personal computers
USB
Is a character encoding system that can range from 7 to 32 bits which represent text and symbols used in a wide variety of languages worldwide.
Unicode
What is the most common output device for a personal computer
Video monit
_____ software makes it possible to run multiple operating systems and multiple applications on the same server at the same time
Virtualization
Binary is an example of what kind of numeral system?
base-2
A pixel is a
picture element or dot on a screen
The acronym ROM denotes
read only memory
