Homework 1
Application software
- Programs that make a computer useful for everyday tasks - ie. Microsoft Word, PowerPoint, email programs, web browsers, and game programs
operating system
- controls the internal operations of the computer's hardware - manages all of the devices connected to the computer - allows data to be saves to and retrieved from storage devices - allows other programs to run on the computer - ie. Windows, macOS, and Linux - ie. Android, iOS
Utility programs
- performs a specialized task that enhances the computer's operation or safeguards data - ie. virus scanners, file compression programs, and data backup programs
Software development tools
- the programs that programmers use to create, modify, and test software - assemblers, compilers, and interpreters
What is the decimal value of the following binary number? 10011101 8 156 157 28
157 2^0-7
Software 2 categories
2 categories: system software and application software system software into 3: operating systems utility programs software development tools
What is the largest value that can be stored in one byte? 65535 8 255 128
255 one byte = 8 bits
In which of the following jobs are you likely to use a computer? traveling sales professional CEO of a multinational corporation check-out clerk at the grocery store auto mechanic at the local garage All of the above
All of the above
Which computer language uses short words known as mnemonics for writing programs? Visual Basic Assembly Java Pascal
Assembly
Which language is referred to as a low-level language? Assembly language Java Python C++
Assembly language
Which of the following is not a microprocessor manufacturing company? Dell Motorola AMD Intel
Dell
Which of the following is considered to be the world's first programmable electronic computer? Gateway ENIAC Dell IBM
ENIAC
All programs are normally stored in ROM and are loaded into RAM as needed for processing.
False
What type of volatile memory is usually used only for temporary storage while running a program? RAM TMM TVM ROM
RAM
The CPU understands instructions written in a binary machine language
True
A program that schedules airline flights is a type of: system software operating system application software structured program unstructured program
application software
The smallest storage location in a computer's memory is known as a switch byte ketter bit
bit
Computers are designed to do just one job.
false
A computer is a single device that performs different types of tasks for its users.
false A computer is a system of devices 1. CPU 2. Main Memory 3. Secondary storage devices 4. Input devices 5. Output devices
A bit that is turned off is represented by the value -1.
false off - 0 on - 1
The Python language uses a compiler which is a program that both translates and executes the instructions in a high-level language.
false interpreter
The process known as the ________ cycle is used by the CPU to execute instructions in a program. decode-fetch-execute fetch-decode-execute fetch-execute-decode decode-execute-fetch
fetch-decode-execute
Where does a computer store a program and the data that the program is working with while the program is running? Selected Answer: in the microprocessor in the CPU in main memory in secondary storage
in main memory, aka random-access memory (RAM)
The following is an example of an instruction written in which computer language? 10110000
machine language
The disk drive is a secondary storage device that stores data by ________ encoding it onto a spinning circular disk. electrically magnetically optically digitally
magnetically
Programs are commonly referred to as application software system software utility programs software
software
A ________ has no moving parts and operates faster than a traditional disk drive. DVD drive hyper drive solid state drive jumper drive
solid state drive
Which type of error prevents the program from running? human syntax grammatical logical
syntax
Internally, the central processing unit (CPU) consists of two main parts: input devices and output devices software and hardware the arithmetic and logic unit (ALU) and the control unit single-task devices and multi-task devices the compiler and the linker
the arithmetic and logic unit (ALU) and the control unit
Which of the following is not a major component of a typical computer system? main memory the operating system the CPU secondary storage devices
the operating system
A software developer is the person with the training to design, create, and test computer programs.
true
IDLE is an alternative method to using a text editor to write, execute, and test a Python program.
true
RAM is a volatile memory used for temporary storage while a program is running.
true
The instruction set for a microprocessor is unique and is typically understood only by the microprocessors of the same brand.
true
The main reason to use secondary storage is to hold data for long periods of time, even when the power supply to the computer is turned off.
true