CSE 3 Q1-3
Digital information is stored and processed as
A collection of ones and zeroes
_____ is an encoding for English alphanumeric characters as 7-bit numbers.
ASCII
____ is a disk drive that uses laser light to read from or write to optical discs
An Optical disc drive (ODD)
A(n) ______ is software used by a computer to perform a set of tasks or functions for the benefit of the user.
Application
A pixel is a
picture element or dot on a screen
A digitizing tablet is controlled by a ______ and allows the user to ______ onto a computer
stylus / enter drawings
The distance between the dots in a display is called
the dot pitch
Which is the most commonly used layout for English-language keyboards?
QWERTY
Which of these is not a secondary storage device? a. memory card b. hard drive c. solid state drive d. RAM
RAM
______ allow an electronic reader to automatically track and identify tags, which contain stored information, attached to objects using electromagnetic fields and radio waves
RFIDs
The acronym ROM stands for
Read Only Memory
______ is the total amount of time it takes to respond to a request for service on a display.
Response time
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
A ______ is a personal computer which stays in one location (e.g. office) due to its larger form factor.
Desktop
________ is when several processes on a computer system are executed one after the other on a single processor.
Serial processing
What technology made it possible for computers to become small enough to fit on a person's desk (and later in a pocket)?
Silicon Chips
These systems are helpful to people who cannot use their hands while they work:
Speech recognition
Which processor family is most likely found on recent gaming laptops (Gaming laptops require a lot of computational power)
Intel
Determining whether one value is equal, greater, or smaller than another value is a(n)
Logical operation
The UNIVAC used _______________ to store its programs and data
Magnetic Tape
The CPU is also sometimes referred to as the
Microprocessor
Which of the following is the main circuit board in computer that holds important hardware components such as the CPU, memory and hardware buses?
Motherboard
________ is when several processes on a computer system are distributed across different processors and executed simultaneously, generally to speed up processing.
Parallel processing
In 1843, Ada Lovelace predicted that computers could be used to:
Produce graphics, compose music, and be useful to science
Charles Babbage's Analytical Engine was programmed using
Punched cards
The simultaneous communication process between a mainframe and several users is known as
Timesharing
This was the first general-purpose computer for sale to the public
UNIVAC
_____ 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
______ is a form of random access computer memory used to store image data for computer display hardware
VRAM
Which of the following applications is free software that allows a user to install a virtual operating system on their computer
VirtualBox
A ____ is a special computer designed for technical or scientific applications
Workstation
An Ultra HD screen has
a total resolution of 3840 pixels by 2160
Which of the following is considered to be the first general purpose computer? (hint: this was never for sale to the general public, only to the US military) a. ENIAC b. UNIVAC I c. Apple I d. IBM P
a. ENIAC
Compared to Hard Disk Drives (HDDs), Solid State Drives (SSDs) have the following advantages, -except-: a. they cost less per gigabyte of storage b. they generate less heat c. they require less electricity d. they store and retrieve data more quickly
a. they cost less per gigabyte of storage
Silicon Chips were eventually replaced in computers by: a. Quantum processors b. None of these, yet c. Flash memory d. Transistors
b. None of these, yet
A _______ number is represented by a string of 0's and 1's (e.g. 1010).
binary
Accelerometers can be found in the following devices: a. laptop hard drives b. smartphones c. all of these answers d. Nintendo game controllers
c. All of these answers
A ______ is a large vacuum tube that uses a directed electron beam to display video on a phosphorescent screen.
cathode ray tube (CRT)
_______ is the rate at which a computer's CPU executes instructions.
clock speed
The higher the resolution of a monitor, the
closer together the pixels
Which of the following devices would NOT have an embedded computer? a. Microwave oven b. Fax machine c. GPS navigation system d. Electric guitar
d. Electric guitar
In a video monitor, lower response time results in
faster video transitions therefore fewer visible image artifacts
