C# Chapter 1
__________ is a set of 128 numeric codes that represents the English letters, various punctuation marks, and other characters,
ASCII
A programmer, or software developer, is a person with the training and skills necessary to _______ computer programs. Select one: a. design b. Create c. Test d. All of the above
All of the above
Programs that make a computer useful for everyday tasks are known as?
Application software
A ____________ drive stores data on a simulated disk drive, but has no moving parts. Select one: a. USB drive b. Hard drive c. Solid drive d. Both A and C
Both A and C
A computer's memory is divided into tiny storage locations known as
Bytes
The ______ is the part of a computer's hardware that executes each instruction in a program.
CPU
A(n) ____________ stores data by magnetically encoding it onto a circular disk.
Disk drive
The _______ is considered by many to be the world's first programmable electronic computer.
ENIAC
A binary number can represent only integer values less than 255.
False
An operating system consists of assemblers, compilers, and utility programs.
False
Low-level languages allow programmers to concentrate on the tasks they want to perform with their program rather than the details of how the CPU will execute those programs.
False
Programs are usually stored in main memory and loaded into secondary storage as needed.
False
RAM memory retains its contents when a computer is turned off
False
Software development tools control the internal operations of the computer's hardware, mange all the devices connected to the computer, allow data to be saved to and retrieved from the storage devices, and allow other programs to run on the computer.
False
The largest value that can be stored in a byte is 1.
False
The use of USB drives has declined dramatically in recent years in favor of superior devices such as floppy disk drives.
False
Today's microprocessor are less powerful than the larger electromechanical CPU's in early computers.
False
You can think of secondary storage as the place where a computer carries out instructions.
False
________ refers to all the physical devices, or components, of which a computer is made.
Hardware
____________ is any data the computer produces and sends to another device, such as a video display or speaker.
Output
________ is a type of memory that can hold data for long periods of time, even when there is no power to the computer.
Secondary storage or static RAM
Applications that programmers use to create, modify, and test software are referred to as:
Software Development Tools
A common type of secondary storage device is the solid state drive.
True
A computer is not a single device, but a system of devices working together.
True
A machine language instruction exists for each basic operation a CPU can do.
True
Common input devices are the keyboard, mouse, scanner, microphone, and digital camera.
True
Computers can perform a wide variety of tasks because they can be programmed in ways that are specific to the needs of applications.
True
The CPU is the most important component in a computer because, without it, the computer could not execute programs.
True
The syntax rules dictate how keywords, operators, and various punctuation characters must be used in a program.
True
When Auto Hide is turned on, a window is displayed only as a tab along one of the edges of the Visual Studio environment.
True
_____________ is an extensive encoding scheme that is compatible with ASCII and can also represent the characters of many of the world's languages.
Unicode
____________ are small devices that plug into a computer's USB port and appear to the system as disk drives.
Universal Serial Bus (USB) drives
In the ________ numbering system, all numeric values are written as sequences of the digits 0 and 1.
binary
The term BIT stands for:
binary digit
Each byte is divided into eight smaller locations know as:
bits
One ______ of memory is large enough to store only a letter of the alphabet or a small number.
byte
When a computer is performing the tasks that a program tells it to do, we say the computer is running, or _______ the program.
executing
Before a computer can store a real number in memory, it must be encoded in ____________.
floating-point notation
____________ is a term used for data a computer collects from users and other devices.
input
The computer component that collects data and sends it to the computer is called a(n) ____________.
input device
Today, CPU's are small chips known as _______ .
microprocessors
In a binary system, a 0 bit represents a switch in the _____ position, and a 1 bit represents a switch in the ___ position.
off, on
A(n) ____________ is the most fundamental set of programs on a computer.
operating system
The compact disc (CD) and digital versatile disc (DVD) are known as ____________ devices.
optical
Data produced by a computer is sent to a(n) ____________, which formats and presents it.
output device
A(n) ________ is a set of instructions that a computer follows to perform a task.
program
Programs are commonly referred to as _________.
software
The programs that control and manage the basic operations of a computer are generally referred to as ____________.
system software
Computers are able to store negative numbers in memory by using a technique known as ____________.
two's complement
A(n) ____________ performs a specialized task that enhances the computer's operation or safeguards data.
utility program
