The cellphone looks like “The Brick”.
The computer looks like the IBM 5150, the original IBM PC, which was introduced in 1981 and contained the Intel 8088 cpu running at 4.77 mhz and 16-256kb of RAM.
With an expansion card you could get it up to 640 kB, and no one will need more than that.
That phone is the Motorola DynaTAC 8000X, introduced in 1983.