The phrase "a computer is composed of" is correct and usable in written English.
You can use it when describing the various components or elements that make up a computer system.
Example: "A computer is composed of several key parts, including the CPU, RAM, and storage devices."
Alternatives: "a computer consists of" or "a computer is made up of".
At the most basic level, quantum computers are composed of quantum bits, or qubits, rather than the traditional bits that are the basic unit of digital computers.
Remember that just like a computer screen, your eye is composed of a certain number of "pixels," each represented by a single light-receptor cell in your retina.
A typical DRE is composed of a touch screen connected to a computer.
A finite-state automaton (FSA), known as the finite-state machine is a behavioral model used to design the computer programs, which is composed of a finite number of states associated to transitions.
When a system is composed of highly reliable elements, exact reliability quantification may be problematic, because computer accuracy is limited.
Within the mechanical design area, a PLM system is composed of the traditional design tools such as Computer-aided design (CAD), Computer-aided manufacturing (CAM), Computer-aided engineering (CAE), etc … and allows bidirectional informational flows between the embedded tools.
Pool A is composed of Washington, Oregon, Arizona, Northern California, Hawaii and Utah.
The autonomous controller utilizes a vision sensor that is composed of CCD video camera and a computer for image processing.
Sensor Node: This sensor node, on a rooftop at BBN Technologies, is composed of sensors (left) and computer hardware which includes a PC that runs the Linux operating system and two Wi-Fi radios housed in a weatherproof case (white box on right).
The interface is composed of a computer, an overhead projector, and Rehmi Post's TauFish electric field sensing array; by touching the pictures and words on the countertop, users' can step their way through recipes.
